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Dayang Chem (Hangzhou) Co.,Ltd.

Dayangchem's R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. DayangChem can provide different quantities

Tetraxetan Manufacturer/High quality/Best price/In stock

Cas:60239-18-1

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality 1,4,7,10-?Tetraazacyclododecane-?1,4,7,10-?Tetraacetic Acid supplier in China

Cas:60239-18-1

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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Jinan Finer Chemical Co., Ltd

Product Description Product website: http://www.finerchem.com Product Name Tetraxetan CAS No. 60239-18-1

Tetraxetan

Cas:60239-18-1

Min.Order:1 Gram

FOB Price: $8.0

Type:Lab/Research institutions

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Wuhan Fortuna Chemical Co.,Ltd

1,4,7,10-Tetraazacyclododecane- 1,4,7,10-tetraacetic-acid CAS 60239-18-1 Company profile Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical & its intermediates, Food/F

1,4,7,10-Tetraazacyclododecane- 1,4,7,10-tetraacetic-acid CAS 60239-18-1

Cas:60239-18-1

Min.Order:10 Kilogram

FOB Price: $10.0

Type:Trading Company

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Henan Allgreen Chemical Co.,Ltd

high quality Appearance:white powder Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai

1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetic Acid

Cas:60239-18-1

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

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Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd

We can provide GMP validation service that complies with SFDA, FDA, WHO and EU EMPA.Excellent registration team could help us easlily to register our products in different countries.If you and your customer are interested in some products or need C

DOTA manufacturer with low price

Cas:60239-18-1

Min.Order:1 Gram

Negotiable

Type:Manufacturers

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Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

High Quality Oled CAS 60239-18-1 1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraaceticacid

Cas:60239-18-1

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

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Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

Tetraaza-12-crown-4-1,4,7,10-tetraacetic acid

Cas:60239-18-1

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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LIDE PHARMACEUTICALS LIMITED

Advantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the R&D b

DOTA / LIDE PHARMA- Factory supply / Best price

Cas:60239-18-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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Henan Tianfu Chemical Co., Ltd.

DOTA Basic information Product Name: DOTA Synonyms: 1,4,7,10-TETRAAZACYCLODODECANE-1,4,7,10-TETRAACETIC ACID;1,4,7,10-TETRAAZACYCLODODECANE-1,4,7,10-TETRAACETIC ACID, FREE ACID;1,4,7,10-

1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetic-acid

Cas:60239-18-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva

DOTA

Cas:60239-18-1

Min.Order:1 Kilogram

FOB Price: $9.0 / 99.0

Type:Trading Company

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Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Best quality CAS 60239-18-1 with high quality products

Cas:60239-18-1

Min.Order:10 Gram

FOB Price: $146.0 / 176.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Product Name (4,7,10-Tris-carboxymethyl-1,4,7,10tetraaza-cyclododec-1-yl)-acetic acid Molecular formula: C16H28N4O8 Structural formula: Assay: 99%

(4,7,10-Tris-carboxymethyl-1,4,7,10tetraaza-cyclododec-1-yl)-acetic acid

Cas:60239-18-1

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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Wuhan Han Sheng New Material Technology Co.,Ltd

Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Cas:60239-18-1

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

inquiry

Hangzhou Sartort Biopharma Co., Ltd

Appearance:White crystalline powder Storage:Room temperature Package:25kg/drum Application:Contrast agent containing gadolinium Transportation:Express/Sea/Air Port:Any port in china

Factory Supply Tetraxetan 1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraaceticAcid (DOTA )

Cas:60239-18-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized

1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraaceticacid 60239-18-1

Cas:60239-18-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

DOTA CAS:60239-18-1 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic intermediates, stero

DOTA CAS:60239-18-1

Cas:60239-18-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraaceticacid

Cas:60239-18-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Quanhe Biotechnology Co. LTD

1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s

DOTA

Cas:60239-18-1

Min.Order:1 Kilogram

FOB Price: $4.0 / 6.0

Type:Lab/Research institutions

inquiry

Wuhan Zenuo Biological Medicine Technology Co Ltd

Product Name: DOTA Synonyms: 1,4,7,10-TETRAAZACYCLODODECANE-1,4,7,10-TETRAACETIC ACID;1,4,7,10-TETRAAZACYCLODODECANE-1,4,7,10-TETRAACETIC ACID, FREE ACID;1,4,7,10-TETRAAZACYCLODODECANE-N,N',N'',N'''-TETRAACETIC ACID;DOTA;

DOTA supplier best quality

Cas:60239-18-1

Min.Order:100 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraaceticacid

Cas:60239-18-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

SHANGHAI T&W PHARMACEUTICAL CO., LTD.

A substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc

Tetraxetan

Cas:60239-18-1

Min.Order:4 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hubei Jiutian Bio-medical Technology Co., Ltd

1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highly qualifie

DOTA CAS 60239-18-1

Cas:60239-18-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Keyingchem Co.,Ltd

Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Cas:60239-18-1

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments

1,4,7,10-TETRAAZACYCLODODECANE-1,4,7,10-TETRAACETIC ACID

Cas:60239-18-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

NewCan Biotech Limited

NewCan Biotech Limited was established in 2021 and is primarily engaged in the research, development, production, and sales of sugars, nucleosides, nucleotides, phosphorylated monomers, as well as next-generation antiviral and antitumor drug intermed

2'-Thioadenosine

Cas:60239-18-1

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

Hangzhou Fonlynn Health Technology Co., Ltd.

Packing: According to customer requirements Delivery time: In stock or depands Port of shipment: Ningbo/Shanghai/Qingdao OEM/ODM:Welcome Sample:We can offer our existing samples at once Transportation:Express/Sea/Air Port:Ningbo/Shanghai/Qingd

DOTA

Cas:60239-18-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

advantage: 1. The best price, satisfactory quality; 2. customers have the right to choose the delivery of parcels (EMS, DHL, FedEx, UPS); 3. customers have the right to choose from the recent effective packaging methods of their products packaging

Tetraxetan Best price DOTA In stock

Cas:60239-18-1

Min.Order:1 Gram

Negotiable

Type:Other

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraaceticacid

Cas:60239-18-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

1,4,7-tris(tert-butoxycarbonylmethyl)-1,4,7,10-tetraazacyclododecane-10-acetic acid
137076-54-1

1,4,7-tris(tert-butoxycarbonylmethyl)-1,4,7,10-tetraazacyclododecane-10-acetic acid

A

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

B

tert-butyl alcohol
75-65-0

tert-butyl alcohol

Conditions
ConditionsYield
With chlorotriisopropylsilane; water; trifluoroacetic acid for 3h; Time; Reagent/catalyst; Solvent;A 100%
B 100%
C43H58N4O8
1412494-57-5

C43H58N4O8

A

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

B

1-methyl-1-phenylethyl alcohol
617-94-7

1-methyl-1-phenylethyl alcohol

Conditions
ConditionsYield
With chlorotriisopropylsilane; water; trifluoroacetic acid for 0.833333h; Time; Reagent/catalyst; Solvent;A 100%
B 100%
2-(4,7,10-tris(2-(tert-butoxy)-2-oxoethyl)-1,4,7,10-tetraazacyclododecan-1-yl)acetic acid

2-(4,7,10-tris(2-(tert-butoxy)-2-oxoethyl)-1,4,7,10-tetraazacyclododecan-1-yl)acetic acid

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
With trifluoroacetic acid In dichloromethane for 12h;89%
With trifluoroacetic acid In dichloromethane at 20℃; for 16h;85%
With trifluoroacetic acid In dichloromethane at 20℃;
chloroacetic acid
79-11-8

chloroacetic acid

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
With sodium hydroxide In water at 70℃; for 30h; pH=9.5 - 10;88%
With (-)-cycleanine; sodium hydroxide In water at 80 - 85℃; pH=10 - 11; Large scale;82.7%
With sodium hydroxide In water at 80 - 85℃; pH=10 - 11; Industrial scale;82.7%
bromoacetic acid
79-08-3

bromoacetic acid

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
With lithium hydroxide monohydrate; water at 0 - 30℃; for 24h; Temperature; Reagent/catalyst;87.8%
tetraethyl 2,2',2'',2'''-(1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrayl)tetraacetate

tetraethyl 2,2',2'',2'''-(1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrayl)tetraacetate

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
With water; sodium hydroxide In methanol at 55 - 60℃; for 12h;80.5%
Iodoacetic acid
64-69-7

Iodoacetic acid

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
With lithium hydroxide monohydrate; water at 0 - 30℃; for 24h;72%
chloroacetic acid lithium salt
19326-51-3

chloroacetic acid lithium salt

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
With lithium hydroxide monohydrate; water at 0 - 30℃; for 24h;43.8%
bromoacetic acid methyl ester
96-32-2

bromoacetic acid methyl ester

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
With lithium hydroxide monohydrate; water at 0 - 30℃; for 24h;32.5%
ethyl bromoacetate
105-36-2

ethyl bromoacetate

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
With lithium hydroxide monohydrate; water at 0 - 30℃; for 24h;24.8%
1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid mono(4-nitrophenyl) ester
474424-15-2

1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid mono(4-nitrophenyl) ester

A

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

B

4-nitro-phenol
100-02-7

4-nitro-phenol

Conditions
ConditionsYield
In water for 1h; pH=7; Kinetics; Further Variations:; pH-values;
N,N',N'',N'''-tetrakis-(p-tolylsulphonyl)-triethylenetetramine
55442-07-4

N,N',N'',N'''-tetrakis-(p-tolylsulphonyl)-triethylenetetramine

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 78 percent / K2CO3 / dimethylformamide / 30 h / 100 °C
2: 33 percent / conc. H2SO4 / 28 h / 115 °C
3: 88 percent / NaOH / H2O / 30 h / 70 °C / pH 9.5 - 10
View Scheme
cyclen tetratosylate
52667-88-6

cyclen tetratosylate

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 33 percent / conc. H2SO4 / 28 h / 115 °C
2: 88 percent / NaOH / H2O / 30 h / 70 °C / pH 9.5 - 10
View Scheme
triethylentetramine
112-24-3

triethylentetramine

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 97 percent / Et3N / acetonitrile / 5 h / 20 °C
2: 78 percent / K2CO3 / dimethylformamide / 30 h / 100 °C
3: 33 percent / conc. H2SO4 / 28 h / 115 °C
4: 88 percent / NaOH / H2O / 30 h / 70 °C / pH 9.5 - 10
View Scheme
2Na(1+)*Pb(2+)*(N(CH2COO)C2H4)4(4-)*2H2O=Na2Pb(N(CH2COO)C2H4)4*2H2O

2Na(1+)*Pb(2+)*(N(CH2COO)C2H4)4(4-)*2H2O=Na2Pb(N(CH2COO)C2H4)4*2H2O

A

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

B

lead(2+) cation

lead(2+) cation

Conditions
ConditionsYield
In perchloric acid Kinetics; decompn. of Pb compd. in aq. HClO4 depending from acid concn.;
C46H62N4O8
1412494-56-4

C46H62N4O8

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: tetrakis(triphenylphosphine) palladium(0); 4-methyl-morpholine / dichloromethane / 3 h / 20 °C
2: chlorotriisopropylsilane; trifluoroacetic acid; water / 0.83 h
View Scheme
(1,4,7,10-tetraaza-cyclododec-1-yl)-acetic acid allyl ester
1023970-58-2

(1,4,7,10-tetraaza-cyclododec-1-yl)-acetic acid allyl ester

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: potassium carbonate / acetonitrile / 16 h / 20 °C
2: tetrakis(triphenylphosphine) palladium(0); 4-methyl-morpholine / dichloromethane / 2 h / 20 °C
3: chlorotriisopropylsilane; trifluoroacetic acid; water / 3 h
View Scheme
Multi-step reaction with 3 steps
1: potassium carbonate / acetonitrile / 8 h / 20 °C
2: tetrakis(triphenylphosphine) palladium(0); 4-methyl-morpholine / dichloromethane / 3 h / 20 °C
3: chlorotriisopropylsilane; trifluoroacetic acid; water / 0.83 h
View Scheme
C31H56N4O8
1412494-55-3

C31H56N4O8

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: tetrakis(triphenylphosphine) palladium(0); 4-methyl-morpholine / dichloromethane / 2 h / 20 °C
2: chlorotriisopropylsilane; trifluoroacetic acid; water / 3 h
View Scheme
1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: potassium carbonate / chloroform / 52 h / 20 °C
2: trifluoroacetic acid / dichloromethane / 12 h
View Scheme
Multi-step reaction with 2 steps
1: potassium carbonate / acetonitrile / 40 h / Reflux
2: sodium hydroxide; water / methanol / 12 h / 55 - 60 °C
View Scheme
Multi-step reaction with 2 steps
1: chloroform / 72 h / 20 °C
2: trifluoroacetic acid / dichloromethane / 20 °C
View Scheme
cyclen hydrochloride

cyclen hydrochloride

chloroacetic acid
79-11-8

chloroacetic acid

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
With sodium hydroxide In water at 0 - 75℃; pH=10 - 10.5;
Stage #1: cyclen hydrochloride; chloroacetic acid With hydrogenchloride; sodium hydroxide In water at 0 - 75℃; pH=10 - 10.5;
Stage #2: In water pH=2.5 - 3;
With sodium hydroxide In water at 10 - 30℃; for 24h; Reagent/catalyst;
sodium monochloroacetic acid
3926-62-3

sodium monochloroacetic acid

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
With sodium hydroxide In water for 5h; pH=11; Concentration; Large scale;
With lithium hydroxide monohydrate; water at 0 - 30℃; for 24h;
sodium 2-bromoacetate
1068-52-6

sodium 2-bromoacetate

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
With lithium hydroxide monohydrate; water at 0 - 30℃; for 24h;
potassium iodoacetate
15973-59-8

potassium iodoacetate

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
With lithium hydroxide monohydrate; water at 0 - 30℃; for 24h;
monosodium iodoacetate
305-53-3

monosodium iodoacetate

1,4,7,10-tetraazacyclododecan
294-90-6

1,4,7,10-tetraazacyclododecan

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Conditions
ConditionsYield
With lithium hydroxide monohydrate; water at 0 - 30℃; for 24h;
1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

gadolinium(III) chloride hexahydrate

gadolinium(III) chloride hexahydrate

gadoteric acid
72573-82-1

gadoteric acid

Conditions
ConditionsYield
With potassium hydroxide In water at 60℃; for 24h; pH=5.5 - 7;100%
1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

manganese (II) sulfate monohydrate

manganese (II) sulfate monohydrate

Mn(1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid(2-))*2H2O

Mn(1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid(2-))*2H2O

Conditions
ConditionsYield
In water MnSO4*H2O dissolved in H2O, ligand added, stirred for 30 min; H2O evapd.; elem. anal.;99%
1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

scandium(III) acetate
3804-23-7

scandium(III) acetate

sodium hydroxide
1310-73-2

sodium hydroxide

3(Na[Sc(1,4,7,10-tetra-azacyclododecane-N,N',N'',N'''-tetraacetate)])*NaOH*18H2O

3(Na[Sc(1,4,7,10-tetra-azacyclododecane-N,N',N'',N'''-tetraacetate)])*NaOH*18H2O

Conditions
ConditionsYield
In water to aq. suspn. H4DOTA NaOH was added until pH 5, Sc(acetate)3 was added and heated at 60°C for 12 h at pH 4; soln. was concd., residue was dissolved in water, basified with NaOH at pH 7.0 and evapd. to dryness under reduced pressure;95%
lanthanum(III) oxide

lanthanum(III) oxide

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

sodium hydroxide
1310-73-2

sodium hydroxide

Na(1+)*2La(3+)*C8H16N4(CH2CO2)4(4-)*C8H16N4(CH2CO2)3CH2CO2H(3-)*10H2O=Na[La2(C8H16N4(CH2CO2)4)2H]*10H2O

Na(1+)*2La(3+)*C8H16N4(CH2CO2)4(4-)*C8H16N4(CH2CO2)3CH2CO2H(3-)*10H2O=Na[La2(C8H16N4(CH2CO2)4)2H]*10H2O

Conditions
ConditionsYield
In water stoich. amts., 85°C, stirring for several d; cooling to room temp., filtration, evapn. (reduced pressure);93%
gadolinium(III) oxide

gadolinium(III) oxide

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

1-deoxy-1-(methylamino)-D-glucitol
6284-40-8

1-deoxy-1-(methylamino)-D-glucitol

gadoterate meglumine

gadoterate meglumine

Conditions
ConditionsYield
Stage #1: 1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane; 1-deoxy-1-(methylamino)-D-glucitol In water for 0.05h; Green chemistry;
Stage #2: gadolinium(III) oxide In water for 0.283333h; Sonication; Green chemistry;
89%
morpholine
110-91-8

morpholine

gadolinium(III) oxide

gadolinium(III) oxide

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

gadoterate morpholine

gadoterate morpholine

Conditions
ConditionsYield
Stage #1: morpholine; 1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane In water for 0.05h; Sonication; Green chemistry;
Stage #2: gadolinium(III) oxide In water for 0.283333h; Sonication; Green chemistry;
85%
gadolinium(III) oxide

gadolinium(III) oxide

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Na(1+)*Gd(3+)*(CH2CH2N(CH2COO))4(4-)*H2O*4H2O=Na{Gd(CH2CH2N(CH2COO))4H2O}*4H2O

Na(1+)*Gd(3+)*(CH2CH2N(CH2COO))4(4-)*H2O*4H2O=Na{Gd(CH2CH2N(CH2COO))4H2O}*4H2O

Conditions
ConditionsYield
In water Gd2O3 and tetraazacyclododecanetetraacetic acid soln. was stirred at 368 K for 2 h, NaOH was slowly added at room temp. to pH 7 with stirring; after filtration mixt. was concd. in vac. and pptd. with acetone; recrystn. from hot H2O/acetone; elem. anal.;83%
gadolinium(III) oxide

gadolinium(III) oxide

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

1-deoxy-1-(methylamino)-D-glucitol
6284-40-8

1-deoxy-1-(methylamino)-D-glucitol

gadoteric dcid meglumine

gadoteric dcid meglumine

Conditions
ConditionsYield
In water at 40 - 50℃; for 3h; pH=7 - 9; Industrial scale;82%
1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

nickel(II)

nickel(II)

{(CH2CH2)NCH2COOH}2{(CH2CH2)NCH2COO}2Ni
107171-59-5

{(CH2CH2)NCH2COOH}2{(CH2CH2)NCH2COO}2Ni

Conditions
ConditionsYield
In water equimolar amounts of ligand and metal salt; pH 2.5;; crystallization after several days; elem. anal.;;80%
gadolinium(III) oxide

gadolinium(III) oxide

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

(2S,3S,4S,5R)-6-(methylamino)hexane-1,2,3,4,5-pentaol

(2S,3S,4S,5R)-6-(methylamino)hexane-1,2,3,4,5-pentaol

gadoteric dcid meglumine

gadoteric dcid meglumine

Conditions
ConditionsYield
In water at 40 - 50℃; for 3h; pH=7 - 9; Large scale;78.5%
1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

p-xylylidenediamine
539-48-0

p-xylylidenediamine

2,2',2''-(10-(2-(4-(aminomethyl)benzylamino)-2-oxoethyl)-1,4,7,10-tetraazacyclo-dodecane-1,4,7-triyl)triacetic acid
1314043-15-6

2,2',2''-(10-(2-(4-(aminomethyl)benzylamino)-2-oxoethyl)-1,4,7,10-tetraazacyclo-dodecane-1,4,7-triyl)triacetic acid

Conditions
ConditionsYield
With pyridine; diisopropyl-carbodiimide In water; acetonitrile75%
1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

zinc(II) cation

zinc(II) cation

(1,4,7,10-tetraazacyclododecane-N,N',N''-N'''-dihydrogentetraacetato)zinc
107171-57-3, 277333-19-4

(1,4,7,10-tetraazacyclododecane-N,N',N''-N'''-dihydrogentetraacetato)zinc

Conditions
ConditionsYield
In water equimolar amounts of ligand and metal salt; pH 2.5;; crystallization after several days; elem. anal.;;72%
1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

2-AMINOETHYL TRIMETHYLAMMONIUM CHLORIDE
10256-43-6

2-AMINOETHYL TRIMETHYLAMMONIUM CHLORIDE

10-<2-(trimethylammonio)ethylcarbamoylmetyhyl>-1,4,7,10-tetraazacyclododecane-1,4,7-tri(triacetic acid) chloride

10-<2-(trimethylammonio)ethylcarbamoylmetyhyl>-1,4,7,10-tetraazacyclododecane-1,4,7-tri(triacetic acid) chloride

Conditions
ConditionsYield
With dicyclohexyl-carbodiimide In pyridine; acetonitrile at 20℃; for 48h;71%
1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

copper(II) ion

copper(II) ion

{(CH2CH2)NCH2COOH}2{(CH2CH2)NCH2COO}2Cu
107171-58-4, 277333-30-9

{(CH2CH2)NCH2COOH}2{(CH2CH2)NCH2COO}2Cu

Conditions
ConditionsYield
In water equimolar amounts of ligand and metal salt; pH 2.5;; crystallization after several days; elem. anal.;;69%
gadolinium(III) oxide

gadolinium(III) oxide

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

gadolinium(III) 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid
72573-82-1

gadolinium(III) 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid

Conditions
ConditionsYield
In water for 3h;67.9%
In water addn. of gadolinium oxide to aq. soln. of tetraazacyclododecane deriv., mixt. heated at 90°C for 12 h; cooling to room temp., addn. of cation-exchange and anion-exchange resins, stirring for 60 min at room temp., filtration, filtrate freeze dried;61%
1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

NO2(C6H4)CH2CH(C(O)NHCH2CH2NH2)NHC(O)(C6H4)((C9BN2)(F)2(CH3)4(CH2CH3)2)

NO2(C6H4)CH2CH(C(O)NHCH2CH2NH2)NHC(O)(C6H4)((C9BN2)(F)2(CH3)4(CH2CH3)2)

NO2(C6H4)CH2CH(C(O)NHCH2CH2NHC(O)CH2(C8H16N4)(CH2C(O)OH)3)NHC(O)(C6H4)((C9BN2)(F)2(CH3)4(CH2CH3)2)

NO2(C6H4)CH2CH(C(O)NHCH2CH2NHC(O)CH2(C8H16N4)(CH2C(O)OH)3)NHC(O)(C6H4)((C9BN2)(F)2(CH3)4(CH2CH3)2)

Conditions
ConditionsYield
With triethylamine In N,N-dimethyl-formamide at 20℃; for 12h;65%
1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

3-bromopropyl biotin
1296869-99-2

3-bromopropyl biotin

C29H48N6O11S

C29H48N6O11S

Conditions
ConditionsYield
With 1,8-diazabicyclo[5.4.0]undec-7-ene In acetonitrile at 82℃; for 18h;65%
1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

3-amino-deoxycombretastatin A4
162705-07-9

3-amino-deoxycombretastatin A4

C34H47N5O11

C34H47N5O11

Conditions
ConditionsYield
Stage #1: 1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane With thionyl chloride for 4h; Reflux;
Stage #2: 3-amino-deoxycombretastatin A4 With N-ethyl-N,N-diisopropylamine In dichloromethane at 30℃; for 3h; Cooling with ice;
65%
1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

N,N-bis(ethoxycarbonylmethyl)ethylenediamine

N,N-bis(ethoxycarbonylmethyl)ethylenediamine

(Ethoxycarbonylmethyl-{2-[2-(4,7,10-tris-{[2-(bis-ethoxycarbonylmethyl-amino)-ethylcarbamoyl]-methyl}-1,4,7,10-tetraaza-cyclododec-1-yl)-acetylamino]-ethyl}-amino)-acetic acid ethyl ester

(Ethoxycarbonylmethyl-{2-[2-(4,7,10-tris-{[2-(bis-ethoxycarbonylmethyl-amino)-ethylcarbamoyl]-methyl}-1,4,7,10-tetraaza-cyclododec-1-yl)-acetylamino]-ethyl}-amino)-acetic acid ethyl ester

Conditions
ConditionsYield
With (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate; triethylamine In chloroform; N,N-dimethyl-formamide at 20℃; for 30h;63%
1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

copper(ll) sulfate pentahydrate

copper(ll) sulfate pentahydrate

{(CH2CH2)NCH2COO}4(4-)*2Cu(2+)*5H2O={(CH2CH2)NCH2COO}4Cu2*5H2O

{(CH2CH2)NCH2COO}4(4-)*2Cu(2+)*5H2O={(CH2CH2)NCH2COO}4Cu2*5H2O

Conditions
ConditionsYield
In water pH=4; stochiometric amounts;; after 2-3 days crystallization; elem. anal.;;60%
1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

Met-OMe
10332-17-9

Met-OMe

C40H72N8O12S4

C40H72N8O12S4

Conditions
ConditionsYield
With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 24h;55%
1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane
60239-18-1

1,4,7,10-tetrakis(carboxymethyl)-1,4,7,10-tetraazacyclododecane

gadolinium(III) trifluoromethanesulfonate

gadolinium(III) trifluoromethanesulfonate

gadolinium 2-[4,7,10-tris(carboxymethyl)-1,4,7,10-tetraazacyclododec-1-yl]acetic acid
783303-01-5, 83678-67-5, 881694-36-6, 881694-49-1

gadolinium 2-[4,7,10-tris(carboxymethyl)-1,4,7,10-tetraazacyclododec-1-yl]acetic acid

Conditions
ConditionsYield
With triethylamine In methanol at 45℃; for 48h;55%

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