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Hebei Nengqian Chemical Import and Export Co., LTD

Our advantages: 1, High quality with competitive price: 1) Standard:BP/USP/EP/Enterprise standard 2) All Purity≥99% 3) We are manufacturer and can provide high quality products with factory price. 2, Fast and safe delivery 1) Parcel can be

s-tetrazine CAS:290-96-0

Cas:290-96-0

Min.Order:1 Kilogram

FOB Price: $30.0 / 40.0

Type:Trading Company

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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

1,2,4,5-Tetrazine 290-96-0

Cas:290-96-0

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Qingdao Beluga Import and Export Co., LTD

s-tetrazine CAS: 290-96-0 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,

s-tetrazine CAS: 290-96-0

Cas:290-96-0

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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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

1,2,4,5-Tetrazine

Cas:290-96-0

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At present

1,2,4,5-Tetrazine

Cas:290-96-0

Min.Order:1 Gram

FOB Price: $8961.0

Type:Trading Company

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Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

1,2,4,5-Tetrazine

Cas:290-96-0

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

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EAST CHEMSOURCES LIMITED

factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B

1,2,4,5-Tetrazine CAS NO.290-96-0

Cas:290-96-0

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

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Shandong Mopai Biotechnology Co., LTD

Shandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W

1,2,4,5-Tetrazine CAS NO.290-96-0

Cas:290-96-0

Min.Order:1 Gram

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KAISA GROUP INC

1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer

1,2,4,5-Tetrazine CAS NO.290-96-0

Cas:290-96-0

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

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Bluecrystal chem-union

We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp

1,2,4,5-Tetrazine CAS NO.290-96-0

Cas:290-96-0

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Trading Company

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Hangzhou Dingyan Chem Co., Ltd

R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou

1,2,4,5-tetrazine

Cas:290-96-0

Min.Order:0

Negotiable

Type:Manufacturers

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Shanghai Acmec Biochemical Technology Co., Ltd.

Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea

Acmec 1,2,4,5-tetrazine 10g

Cas:290-96-0

Min.Order:1 bottle

Negotiable

Type:Lab/Research institutions

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Henan Tianfu Chemical Co., Ltd.

1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.

1,2,4,5-Tetrazine

Cas:290-96-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Antimex Chemical Limied

Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali

1,2,4,5-Tetrazine

Cas:290-96-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

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HANGZHOU TIANYE CHEMICALS CO., LTD.

We product this chemical more than 10 years . We are very experience to export it to many countries, Our superior & stable quality , competitive price gain warm reception from our customers. Application:Chemical intermediate

1,2,4,5-Tetrazine

Cas:290-96-0

Min.Order:0

Negotiable

Type:Trading Company

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Hubei Langyou International Trading Co., Ltd

1,2,4,5-Tetrazine CAS NO.290-96-0 Application:1,2,4,5-Tetrazine CAS NO.290-96-0

1,2,4,5-Tetrazine CAS NO.290-96-0

Cas:290-96-0

Min.Order:0

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Type:Other

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Wuhan Circle Star Chem-medical Technology co.,Ltd.

good quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:25kg,50kg,180kg,200kg,250kg,1000kg,customization Application:Pharma;Industry;Agricultural;chemical reaserch Tran

s-tetrazine

Cas:290-96-0

Min.Order:0

Negotiable

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Hangzhou ZeErRui Chemical Co., Ltd.

High quality suppliers Application:Medical research field

s-tetrazine

Cas:290-96-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

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BOC Sciences

We are committed to providing our customers with the best products and services at the most competitive prices.Appearance:white powder Storage:Room temperature with sealed well Package:according to the clients requirement Application:Use as primary a

1,2,4,5-tetrazine

Cas:290-96-0

Min.Order:0

Negotiable

Type:Trading Company

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Henan Kanbei Chemical Co.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

s-tetrazine

Cas:290-96-0

Min.Order:0

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Type:Lab/Research institutions

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Hebei Quanhe Biotechnology Co. LTD

1. Timely and efficient service to ensure communication with customers2. Produce products of different specifications and sizes according to your requirements.3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures sta

s-tetrazine

Cas:290-96-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Hunan Longxianng Runhui Trading Co.,Ltd

1,2,4,5-Tetrazine CAS NO.290-96-0Appearance:off-white fine crystalline powder Storage:Dry and ventilated Package:Standard or as customer's require Application:intermediates Transportation:By express (Door to door) such as FEDEX, DHL, EMS for small am

1,2,4,5-Tetrazine CAS NO.290-96-0

Cas:290-96-0

Min.Order:0

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Type:Lab/Research institutions

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ZHEJIANG JIUZHOU CHEM CO.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

s-tetrazine

Cas:290-96-0

Min.Order:0

Negotiable

Type:Trading Company

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LEAP CHEM Co., Ltd.

Best Seller, High Quality, Competitive Price, Fast Delivery, Quick ResponseAppearance:powder, or liquid Storage:Stored in room temperature, ventilated place Package:Bottle, barrel, cargo, container, etc. Application:Pharmaceuticals, intermediates, AP

1,2,4,5-tetrazine

Cas:290-96-0

Min.Order:0

Negotiable

Type:Trading Company

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Shanghai united Scientific Co.,Ltd.

United Scientific Company Located in Shanghai of China , is a competitive player in the global specialty and fine chemical market. Fenghua has both the expertise and flexibility to produce a wide range of chemicals. Focusing on developing the innovat

1,2,4,5-Tetrazine

Cas:290-96-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Chungking Joyinchem Co., Ltd.

Joyinchem have been committed to chemical supply for several years and have built good cooperation records with multinational chemical corporations and importers from all over the world. Our services include:-Spot goods-Contract manufacturing-Custom

1,2,4,5-Tetrazine

Cas:290-96-0

Min.Order:0

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Type:Lab/Research institutions

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changchun tuocai technology co.,ltld

1,2,4,5-Tetrazine CAS NO.290-96-0Appearance:off-white fine crystalline powder Storage:Dry and ventilated Package:Standard or as customer's require Application:intermediates Transportation:Delivery by EMS, DHL, FEDEX, UPS, TNT

1,2,4,5-Tetrazine CAS NO.290-96-0

Cas:290-96-0

Min.Order:0

Negotiable

Type:Trading Company

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Taizhou volsen chemical Co., Ltd

We are a trading company aiming at providing high-quality services to customers. Established for many years, with good reputation in the industry Storage:Sealed and preserved Application:Fine chemical intermediates, used as the main raw material for

1,2,4,5-Tetrazine CAS NO.290-96-0

Cas:290-96-0

Min.Order:0

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GZ HONESTCHEM CO., LTD

R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou

1,2,4,5-tetrazine

Cas:290-96-0

Min.Order:0

Negotiable

Type:Trading Company

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Nanjing Raymon Biotech Co., Ltd.

1,2,4,5-Tetrazine CAS NO.290-96-0Appearance:off-white fine crystalline powder Storage:keep in dry and cool condition Package:25kg or according to cutomer's demand Application:Chemical research/pharma intermediate Transportation:By Sea,by Air,By couri

1,2,4,5-Tetrazine CAS NO.290-96-0

Cas:290-96-0

Min.Order:0

Negotiable

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Synthetic route

formamidine acetic acid
3473-63-0

formamidine acetic acid

s-Tetrazine
290-96-0

s-Tetrazine

Conditions
ConditionsYield
With hydrazine hydrate; acetic acid; sodium nitrite In methanol 60 min, 0-10 deg C, 1 h, 10 deg C, 1 h, r.t.;26%
Stage #1: formamidine acetic acid With hydrazine hydrate at 0℃; for 1h;
Stage #2: With acetic acid; sodium nitrite at 0℃; for 3.5h;
12%
Yield given. Multistep reaction;
Stage #1: formamidine acetic acid With hydrazine hydrate at 20℃; Cooling with ice;
Stage #2: With acetic acid; sodium nitrite at 5℃; for 1h;
Stage #3: With sodium hydrogencarbonate In dichloromethane; water
Stage #1: formamidine acetic acid With hydrazine hydrate at 20℃; Cooling with ice;
Stage #2: With acetic acid; sodium nitrite at 5℃; for 1h;
formamidine
463-52-5

formamidine

s-Tetrazine
290-96-0

s-Tetrazine

Conditions
ConditionsYield
With hydrazine hydrate; acetic acid; sodium nitrite In methanol at 0℃; for 2.5h; Inert atmosphere;5%
1.2.4.5-tetrazine-dicarboxylic acid-(3.6)

1.2.4.5-tetrazine-dicarboxylic acid-(3.6)

s-Tetrazine
290-96-0

s-Tetrazine

Conditions
ConditionsYield
at 160℃;
hydrazoformaldehyde dihydrazone

hydrazoformaldehyde dihydrazone

s-Tetrazine
290-96-0

s-Tetrazine

Conditions
ConditionsYield
With acetic acid; sodium nitrite
1,4-Dihydro-1,2,4,5-tetrazine
61626-05-9

1,4-Dihydro-1,2,4,5-tetrazine

s-Tetrazine
290-96-0

s-Tetrazine

Conditions
ConditionsYield
With sodium nitrite In acetic acid
With acetic acid; sodium nitrite at -18 - 15℃;15 g
formamidinium acetate
64392-62-7

formamidinium acetate

s-Tetrazine
290-96-0

s-Tetrazine

Conditions
ConditionsYield
Stage #1: formamidinium acetate With hydrazine hydrate at 20℃; for 1h;
Stage #2: With sodium nitrite In acetic acid at 0℃; for 1.5h; Further stages.;
s-Tetrazine
290-96-0

s-Tetrazine

(S)-2-(2'-methoxyethenyl)-piperidine-1-carboxylic acid tert-butyl ester

(S)-2-(2'-methoxyethenyl)-piperidine-1-carboxylic acid tert-butyl ester

(S)-2-(pyridazine-4'-yl)-piperidine-1-carboxylic acid tert-butyl ester

(S)-2-(pyridazine-4'-yl)-piperidine-1-carboxylic acid tert-butyl ester

Conditions
ConditionsYield
In chloroform for 30h; Heating;95%
s-Tetrazine
290-96-0

s-Tetrazine

6,7-dimethoxynaphthalene-1,4-dione
38199-00-7

6,7-dimethoxynaphthalene-1,4-dione

6,7-dimethoxy-2,3-diaza-9,10-anthraquinone

6,7-dimethoxy-2,3-diaza-9,10-anthraquinone

Conditions
ConditionsYield
With α,α,α-trifluorotoluene; C18H18B2N2 at 110℃; for 20h; Diels-Alder Cycloaddition; Inert atmosphere;95%
s-Tetrazine
290-96-0

s-Tetrazine

trimethylsilylacetylene
1066-54-2

trimethylsilylacetylene

4-Trimethylsilanyl-pyridazine

4-Trimethylsilanyl-pyridazine

Conditions
ConditionsYield
In acetonitrile at 80℃; for 2h;94%
s-Tetrazine
290-96-0

s-Tetrazine

p-benzoquinone
106-51-4

p-benzoquinone

5,8-dihydroxyphthalazine

5,8-dihydroxyphthalazine

Conditions
ConditionsYield
With 5,10-dimethyl-5,10-dihydroboranthrene pyridazine at 55 - 110℃; Inert atmosphere; Schlenk technique; Sealed tube;94%
s-Tetrazine
290-96-0

s-Tetrazine

Bis(trimethylsilyl)ethyne
14630-40-1

Bis(trimethylsilyl)ethyne

4,5-bis(trimethylsilyl)pyridazine

4,5-bis(trimethylsilyl)pyridazine

Conditions
ConditionsYield
In acetonitrile at 80℃; for 12h;93%
In 1,4-dioxane at 79.84℃; for 12h; Inert atmosphere;
s-Tetrazine
290-96-0

s-Tetrazine

[1,4]naphthoquinone
130-15-4

[1,4]naphthoquinone

2,3-diaza-9,10-anthracenedione

2,3-diaza-9,10-anthracenedione

Conditions
ConditionsYield
With α,α,α-trifluorotoluene; C18H18B2N2 at 110℃; for 20h; Reagent/catalyst; Diels-Alder Cycloaddition; Inert atmosphere;93%
s-Tetrazine
290-96-0

s-Tetrazine

1,2,4,5-tetrazine-3,6-dicarboxylic acid dimethyl ester
2166-14-5

1,2,4,5-tetrazine-3,6-dicarboxylic acid dimethyl ester

2-[(3,4-dimethoxyphenyl)ethynyl]-4,5-dimethoxy-1-(methoxymethoxy)benzene
266674-72-0

2-[(3,4-dimethoxyphenyl)ethynyl]-4,5-dimethoxy-1-(methoxymethoxy)benzene

dimethyl 4-(4,5-dimethoxy-2-(methoxymethoxy)phenyl)-5-(3,4-dimethoxyphenyl)-1,2-diazine-3,6-dicarboxylate
266674-73-1

dimethyl 4-(4,5-dimethoxy-2-(methoxymethoxy)phenyl)-5-(3,4-dimethoxyphenyl)-1,2-diazine-3,6-dicarboxylate

Conditions
ConditionsYield
In 1,3,5-trimethyl-benzene92%
s-Tetrazine
290-96-0

s-Tetrazine

1,4-diethynylbenzene
935-14-8

1,4-diethynylbenzene

1,4-bis(pyridazin-4-yl)benzene
1094771-92-2

1,4-bis(pyridazin-4-yl)benzene

Conditions
ConditionsYield
In 1,4-dioxane at 79.84℃; for 24h;90%
In 1,4-dioxane at 80℃;90%
s-Tetrazine
290-96-0

s-Tetrazine

6-methoxy-1,4-naphthoquinone
29263-68-1

6-methoxy-1,4-naphthoquinone

2,3-diaza-6-methoxyanthracene-9,10-dione

2,3-diaza-6-methoxyanthracene-9,10-dione

Conditions
ConditionsYield
With α,α,α-trifluorotoluene; C18H18B2N2 at 110℃; for 20h; Diels-Alder Cycloaddition; Inert atmosphere;88%
s-Tetrazine
290-96-0

s-Tetrazine

2,3-dimethyl-1,4-benzoquinone
526-86-3

2,3-dimethyl-1,4-benzoquinone

6,7-dimethyl-5,8-dihydroxyphthalazine

6,7-dimethyl-5,8-dihydroxyphthalazine

Conditions
ConditionsYield
With 5,10-dimethyl-5,10-dihydroboranthrene pyridazine at 55 - 110℃; Inert atmosphere; Schlenk technique; Sealed tube;88%
s-Tetrazine
290-96-0

s-Tetrazine

bicyclopropylidene
27567-82-4

bicyclopropylidene

C24H30N6
111323-53-6

C24H30N6

Conditions
ConditionsYield
for 1.5h; Ambient temperature;86%
s-Tetrazine
290-96-0

s-Tetrazine

phenylacetylene
536-74-3

phenylacetylene

4-phenylpyridazine
92184-43-5

4-phenylpyridazine

Conditions
ConditionsYield
In 1,4-dioxane at 70℃; for 168h;85%
s-Tetrazine
290-96-0

s-Tetrazine

1,3-diethynylbenzene
1785-61-1

1,3-diethynylbenzene

C14H10N4
1460264-94-1

C14H10N4

Conditions
ConditionsYield
In 1,4-dioxane at 90℃; for 25h;85%
s-Tetrazine
290-96-0

s-Tetrazine

(2,3-naphthalocyaninato)ruthenium(II)

(2,3-naphthalocyaninato)ruthenium(II)

(μ-tetrazine)(naphthalocyaninato)ruthenium(II)

(μ-tetrazine)(naphthalocyaninato)ruthenium(II)

Conditions
ConditionsYield
In chloroform N2; stirred for 1 day; filtered off, extrd. (CHCl3), dried (80°C, 0.01 Torr); elem. anal.;84%
s-Tetrazine
290-96-0

s-Tetrazine

1,4-anthraquinone
635-12-1

1,4-anthraquinone

2,3-diaza-5,12-naphthacenedione

2,3-diaza-5,12-naphthacenedione

Conditions
ConditionsYield
With α,α,α-trifluorotoluene; C18H18B2N2 at 110℃; for 20h; Reagent/catalyst; Diels-Alder Cycloaddition; Inert atmosphere;82%
s-Tetrazine
290-96-0

s-Tetrazine

(1R,5S)-2-(2'-methoxyethenyl)-8-methyl-8-azabicyclo[3.2.1]oct-2-ene

(1R,5S)-2-(2'-methoxyethenyl)-8-methyl-8-azabicyclo[3.2.1]oct-2-ene

(1R,5S)-8-methyl-2-(pyridazin-4'-yl)-8-azabicyclo[3.2.1]oct-2-ene

(1R,5S)-8-methyl-2-(pyridazin-4'-yl)-8-azabicyclo[3.2.1]oct-2-ene

Conditions
ConditionsYield
In toluene for 20h; Diels-Alder reaction; Heating;81%
s-Tetrazine
290-96-0

s-Tetrazine

silver trifluoromethanesulfonate
2923-28-6

silver trifluoromethanesulfonate

{[Ag2(1,2,4,5-tetrazine)3(trifluoromethanesulfonate)](trifluoromethanesulfonate)}n

{[Ag2(1,2,4,5-tetrazine)3(trifluoromethanesulfonate)](trifluoromethanesulfonate)}n

Conditions
ConditionsYield
In tetrahydrofuran at 20℃; for 2h; Darkness;80%
s-Tetrazine
290-96-0

s-Tetrazine

ruthenium(II) phthalocyanine

ruthenium(II) phthalocyanine

(μ-s-tetrazine)-phthalocyaninatoruthenium(II)

(μ-s-tetrazine)-phthalocyaninatoruthenium(II)

Conditions
ConditionsYield
In tetrahydrofuran for 144h; Heating;78%
s-Tetrazine
290-96-0

s-Tetrazine

ruthenium(II) phthalocyanine
27636-56-2

ruthenium(II) phthalocyanine

(μ-s-tetrazine)phthalocyaninatoruthenium(II)
107011-21-2

(μ-s-tetrazine)phthalocyaninatoruthenium(II)

Conditions
ConditionsYield
In tetrahydrofuran silght excess of ligand, mixt. refluxed for 6 ds under inert atm., cooled; filtered, washed (acetone), dried 70°C, vac.), elem. anal.;78%
s-Tetrazine
290-96-0

s-Tetrazine

2,2-dimethyl-3-butyne
917-92-0

2,2-dimethyl-3-butyne

4-tert-Butyl-pyridazine

4-tert-Butyl-pyridazine

Conditions
ConditionsYield
for 672h; Ambient temperature;74%
s-Tetrazine
290-96-0

s-Tetrazine

(E/Z)-exo-2-(2-methoxyethenyl)-7-azabicyclo[2.2.1]heptane-7-carboxylic acid ethyl ester

(E/Z)-exo-2-(2-methoxyethenyl)-7-azabicyclo[2.2.1]heptane-7-carboxylic acid ethyl ester

exo-2-(pyridazin-4-yl)-7-azabicyclo[2.2.1]heptane-7-carboxylic acid ethyl ester

exo-2-(pyridazin-4-yl)-7-azabicyclo[2.2.1]heptane-7-carboxylic acid ethyl ester

Conditions
ConditionsYield
In toluene for 12h; Diels-Alder inverse type reaction; Heating;74%

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