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
Cas:135-51-3
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryWelcome 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
Cas:135-51-3
Min.Order:1 Kilogram
Negotiable
Type:Manufacturers
inquiryThe 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
Cas:135-51-3
Min.Order:1
Negotiable
Type:Other
inquiryOur 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
Cas:135-51-3
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryStock products, own laboratory Appearance:White to Gray to Brown powder to crystal Storage:Room Temperature Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:shanghai
Cas:135-51-3
Min.Order:1 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryProduct Name: Disodium 2-naphthol-3,6-disulfonate Synonyms: R SALT;SODIUM-2-NAPHTHOL-3,6-DISULFONATE;R ACID;R ACID DISODIUM SALT;R-ACID SODIUM SALT;2,7-Naphthalenedisulfonicacid,3-hydroxy-,dis
Cas:135-51-3
Min.Order:1 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryOur 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
Cas:135-51-3
Min.Order:1 Metric Ton
FOB Price: $520.0 / 888.0
Type:Trading Company
inquiryWITH 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
Cas:135-51-3
Min.Order:10 Gram
FOB Price: $146.0 / 176.0
Type:Trading Company
inquiry1.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
Cas:135-51-3
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryAbout Product Details Items Specifications Test Results Appearance White to white crystalline powde
Cas:135-51-3
Min.Order:100 Kilogram
FOB Price: $1.0 / 2.0
Type:Lab/Research institutions
inquiryOur 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 presen
Cas:135-51-3
Min.Order:25 Gram
FOB Price: $630.0
Type:Trading Company
inquiryHenan 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
Cas:135-51-3
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirysuperior quality Appearance:slightly grey solid Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Application:Used as Pharmaceutical Intermediates Transportatio
Cas:135-51-3
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryHangzhou 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
Cas:135-51-3
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryJ&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
Cas:135-51-3
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryWhy Choose Us: 1. Factory direct sales, so we can provide the competitive price and high quality product base on 8 years of production and R&D experience. 2. It is available in stock for quick shipment.Products could be packaged according to cu
Product name: R Salt CAS No.:135-51-3 Molecule Formula:C10H6Na2O7S2 Molecule Weight:348.25 Purity: 98.0% Package: 25kg/bag Description:White crystalline powder Manufacture Standards:Enterprise Standard TESTING ITEM
GMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,
Cas:135-51-3
Min.Order:1 Milligram
Negotiable
Type:Trading Company
inquiryZhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice. pls contact with us freely for getting detailed
Cas:135-51-3
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
inquiryHangzhou Huarong Pharm Co., Ltd.established since 2006 , has been actively developing specialty products for Finished Dosages, APIs, Intermediates, and Fine chemicals markets in North America, Europe, Korea, Japan, Mid-East and all over the World. Hu
Cas:135-51-3
Min.Order:0
Negotiable
Type:Trading Company
inquiryAppearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
Cas:135-51-3
Min.Order:0
Negotiable
Type:Manufacturers
inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,Pharmaceutical intermediates Transportation:air,sea,courier
Cas:135-51-3
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryBest service,high quality and cheap price. Storage:Keep away from heat,sparks and flames. Package:25kg/50kg/200kg drum or Customer demand Application:Used as pharmaceutical intermediates Transportation:BY sea/air or by courier
Cas:135-51-3
Min.Order:0
Negotiable
Type:Trading Company
inquiryAcmec 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
Cas:135-51-3
Min.Order:1 bottle
Negotiable
Type:Lab/Research institutions
inquiryhigh quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
Cas:135-51-3
Min.Order:0
Negotiable
Type:Manufacturers
inquiryOur clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS
Cas:135-51-3
Min.Order:0
Negotiable
Type:Manufacturers
inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:Beijing or Guangzhou
Cas:135-51-3
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryTAIHO Unique Advantages:1.We're factory2.Free samples available3.Commodity inspection can be done4.ISO9001,Kosher certifications5.10 years experiences Storage:Store in cool &dry place Package:aluminium foil bag/fiber can/plastic drum Application:comp
Cas:135-51-3
Min.Order:0
Negotiable
Type:Manufacturers
inquiryAnsciep 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
Cas:135-51-3
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
Conditions | Yield |
---|---|
With sodium carbonate; sodium chloride In water 1.) 0-5 deg C, 3 h; 2.) 60 deg C; | 82% |
1-adamantyl-(4-aminophenyl)methanone
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
Conditions | Yield |
---|---|
Stage #1: 1-adamantyl-(4-aminophenyl)methanone With hydrogenchloride; sodium nitrite In water for 0.25h; Stage #2: 3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt With sodium hydroxide In water for 0.25h; | 76% |
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
Conditions | Yield |
---|---|
Stage #1: sodium 5-aminonaphthalene-1-sulfonate With hydrogenchloride; sodium nitrite In water at 0 - 5℃; Stage #2: 3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt In water at 0 - 5℃; pH=9 - 10; | 71% |
1-adamantyl-(3-aminophenyl)methanone
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
Conditions | Yield |
---|---|
Stage #1: 1-adamantyl-(3-aminophenyl)methanone With hydrogenchloride; sodium nitrite In water for 0.25h; Stage #2: 3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt With sodium hydroxide In water for 0.25h; | 71% |
4,4'-bipyridine
water
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
Conditions | Yield |
---|---|
In methanol at 20℃; for 0.166667h; | 70% |
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
Conditions | Yield |
---|---|
Stage #1: Sodium 2-aminonaphthalene-6-sulfonate With hydrogenchloride; sodium nitrite In water at 0 - 5℃; Stage #2: 3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt In water at 0 - 5℃; pH=9 - 10; | 63% |
sodium 2-amino-5-naphthalenesulfonate
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
Conditions | Yield |
---|---|
Stage #1: sodium 2-amino-5-naphthalenesulfonate With hydrogenchloride; sodium nitrite In water at 0 - 5℃; Stage #2: 3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt In water at 0 - 5℃; pH=9 - 10; | 62% |
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
sodium 5-aminonaphthalene-2-sulfonate
Conditions | Yield |
---|---|
Stage #1: sodium 5-aminonaphthalene-2-sulfonate With hydrogenchloride; sodium nitrite In water at 0 - 5℃; Stage #2: 3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt In water at 0 - 5℃; pH=9 - 10; | 57% |
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)aniline
Conditions | Yield |
---|---|
Stage #1: 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)aniline With hydrogenchloride; sodium nitrite for 0.25h; Stage #2: 3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt In water at 0 - 20℃; Further stages.; | 33% |
Stage #1: 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)aniline With hydrogenchloride; sodium nitrite In water at 0℃; for 0.5h; Stage #2: 3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt With sodium hydroxide In water for 0.75h; pH=6; | 21.8% |
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
3,3'-dimethyl-biphenyl-4,4'-bisdiazonium; dichloride
β‐cyclodextrin
Conditions | Yield |
---|---|
With sodium carbonate | 6% |
4-Butylaniline
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
C20H18N2O7S2(2-)*2Na(1+)
Conditions | Yield |
---|---|
(i) (diazotization), (ii) /BRN= 3643184/; Multistep reaction; |
4-isobutylaniline
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
C20H18N2O7S2(2-)*2Na(1+)
Conditions | Yield |
---|---|
(i) (diazotization), (ii) /BRN= 3643184/; Multistep reaction; |
4-hexylaniline
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
C22H22N2O7S2(2-)*2Na(1+)
Conditions | Yield |
---|---|
(i) (diazotization), (ii) /BRN= 3643184/; Multistep reaction; |
4-octylaniline
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
C24H26N2O7S2(2-)*2Na(1+)
Conditions | Yield |
---|---|
(i) (diazotization), (ii) /BRN= 3643184/; Multistep reaction; |
p-2-Aethylbutylanilin
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
C22H22N2O7S2(2-)*2Na(1+)
Conditions | Yield |
---|---|
(i) (diazotization), (ii) /BRN= 3643184/; Multistep reaction; |
p-2-Aethyl-4-methyl-pentylanilin
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
C24H26N2O7S2(2-)*2Na(1+)
Conditions | Yield |
---|---|
(i) (diazotization), (ii) /BRN= 3643184/; Multistep reaction; |
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
aniline
disodium 3-hydroxy-4-(phenylazo)naphthalene-2,7-disulfonate
Conditions | Yield |
---|---|
(i) (diazotization), (ii) /BRN= 3643184/; Multistep reaction; |
2-thiazolylamine
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
A
1-nitroso-2-naphthol-3,6-disulfonic acid
B
3-hydroxy-4-thiazol-2-ylazo-naphthalene-2,7-disulfonic acid
Conditions | Yield |
---|---|
With sulfuric acid; sodium nitrite Rate constant; 1.) -10 deg C, 1 h; 2.) buffer solution; study at different pH; |
1,3-thiazol-5-amine
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
A
1-nitroso-2-naphthol-3,6-disulfonic acid
Conditions | Yield |
---|---|
With nitrosylsulfuric acid; sulfuric acid Rate constant; 1.) -10 deg C; 2.) buffer solution; study at different pH; |
[1,3,4]Thiadiazol-2-ylamin
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
A
1-nitroso-2-naphthol-3,6-disulfonic acid
B
3-Hydroxy-4-([1,3,4]thiadiazol-2-ylazo)-naphthalene-2,7-disulfonic acid
Conditions | Yield |
---|---|
With nitrosylsulfuric acid; sulfuric acid Rate constant; 1.) -10 deg C; 2.) buffer solution; study at different pH; |
1,3,4-thiadiazol-5-amine
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
A
1-nitroso-2-naphthol-3,6-disulfonic acid
Conditions | Yield |
---|---|
With nitrosylsulfuric acid; sulfuric acid Rate constant; 1.) -10 deg C; 2.) buffer solution; study at different pH; |
4-aminothiazole
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
A
1-nitroso-2-naphthol-3,6-disulfonic acid
Conditions | Yield |
---|---|
With sulfuric acid; sodium nitrite Rate constant; 1.) -10 deg C, 1h; 2.) buffer solution; study at different pH; |
3(5)-amino-1,2,4-triazole
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
A
1-nitroso-2-naphthol-3,6-disulfonic acid
Conditions | Yield |
---|---|
With nitrosylsulfuric acid; sulfuric acid Rate constant; Mechanism; 1.) -10 deg C; 2.) buffer solution; study at different pH; |
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
2-hydroxyphenyldiazonium chloride
Conditions | Yield |
---|---|
With sodium hydroxide In water at 0℃; for 1h; |
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
C25H45N3(2+)*2Br(1-)
Conditions | Yield |
---|---|
With Tris buffer; potassium chloride at 15℃; Kinetics; Rate constant; | |
With Tris buffer; potassium chloride at 15℃; |
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
Conditions | Yield |
---|---|
With Tris buffer; potassium chloride at 15℃; Kinetics; Rate constant; | |
With Tris buffer; potassium chloride at 15℃; |
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
sodium 2-hydroxy-1-nitrosonaphtalene-3,6-disulphonate
Conditions | Yield |
---|---|
With hydrogenchloride; sodium nitrite In sodium hydroxide at 0℃; |
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
chloroacetic acid
3,6-disulphonaphthoxyacetic acid
Conditions | Yield |
---|---|
With sodium hydroxide for 1.25h; Heating; |
4-[(E)-(4-aminophenyl)diazenyl]phenylamine
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
Conditions | Yield |
---|---|
Multistep reaction; |
4-[(E)-(4-aminophenyl)diazenyl]phenylamine
3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt
Conditions | Yield |
---|---|
Multistep reaction. Yields of byproduct given; |
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