chengdu and import and export trade co., LTD., who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do res
Cas:15139-21-6
Min.Order:1000 Gram
FOB Price: $1300.0
Type:Trading Company
inquiryOur Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con
Cas:15139-21-6
Min.Order:1 Kilogram
FOB Price: $1.0 / 10.0
Type:Trading Company
inquiry1.In No Less 10 years exporting experience. you 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 Specializ
Cas:15139-21-6
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquirythionitrobenzoic acid CAS:15139-21-6 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 int
Cas:15139-21-6
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryHello, 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
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Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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:15139-21-6
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryOur 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
Cas:15139-21-6
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
inquiryZibo 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
Cas:15139-21-6
Min.Order:10 Gram
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Type:Lab/Research institutions
inquiryWe are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov
Cas:15139-21-6
Min.Order:100 Gram
FOB Price: $100.0 / 2000.0
Type:Lab/Research institutions
inquiryProduct Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,
Cas:15139-21-6
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryfactory?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
Cas:15139-21-6
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
inquiryShandong 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
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Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry1.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
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Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquiryTriumph has the complete production of G- KG - MT service chain,we can make the new technology into productivity quickly in the research and development of new products. Main Business Custom Synthesis:
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
Cas:15139-21-6
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiry1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification
Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
Cas:15139-21-6
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryJ&H CHEM is one of China's leading providers of integrated fine chemical services including offering, research and development, Custom manufacturing business, as well as other Value-added customer services, for diversified range products of chemicals
1.A strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards.2. Now we have established long-term stable re
high 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
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.
Cas:15139-21-6
Min.Order:0
Negotiable
Type:Lab/Research institutions
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:15139-21-6
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryBenzoic acid,5-mercapto-2-nitro- CAS NO.15139-21-6 Application:Benzoic acid,5-mercapto-2-nitro- CAS NO.15139-21-6
Cas:15139-21-6
Min.Order:0
Negotiable
Type:Other
inquiry1,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 highl
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Best quality with low price Storage:ln stock Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Shanghai
Cas:15139-21-6
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1. 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
Hangzhou ZeErRui Chemical Co., Ltd. is focused on customization, research and development and production of APIs and advanced intermediates, which can effectively compensate for the deficiencies of traditional CRO and CMO. Priority of high-tech barri
Cas:15139-21-6
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry5,5'-dithiobis-(2-nitrobenzoic acid)
5-thio-2-nitrobenzoic acid
Conditions | Yield |
---|---|
With sodium tetrahydroborate In ethanol; water at 0 - 20℃; | 97% |
With dithionite(2-); cetyltrimethylammonim bromide In water Kinetics; Equilibrium constant; further reagents, catalysts; | |
With 2-(N,N-dimethylamino)ethanol; 2-mercaptoethylamine hydrochloride In water at 25℃; for 1h; Yield given; |
5-thio-2-nitrobenzoic acid
Conditions | Yield |
---|---|
With hydrogenchloride; 2-amino-2-hydroxymethyl-1,3-propanediol; diothiothreitol In water at 20℃; for 2h; pH=8; | 55% |
5,5'-dithiobis-(2-nitrobenzoic acid)
A
5-thio-2-nitrobenzoic acid
Conditions | Yield |
---|---|
In water at 25℃; Rate constant; spectroscopic method, variation of the pH: the rate constant for the thiol-disulfide exchange (kSH) and for the thiolate ion-disulfide exchange (Ks-) as well as the activation energy were determined; |
L-Cysteine
5-(2-cyanoethyldithio)-2-nitrobenzoic acid
A
5-thio-2-nitrobenzoic acid
Conditions | Yield |
---|---|
With sodium phosphate buffer In ethanol Rate constant; |
N-Acetylcysteine
5,5'-dithiobis-(2-nitrobenzoic acid)
Conditions | Yield |
---|---|
In water at 25℃; Rate constant; spectroscopic method, variation of the pH: the rate constant for the thiol-disulfide exchange (kSH) and for the thiolate ion-disulfide exchange (Ks-) as well as the activation energy were determined; |
DL-Penicillamin
5,5'-dithiobis-(2-nitrobenzoic acid)
A
5-thio-2-nitrobenzoic acid
Conditions | Yield |
---|---|
In water at 25℃; Rate constant; spectroscopic method, variation of the pH: the rate constant for the thiol-disulfide exchange (kSH) and for the thiolate ion-disulfide exchange (Ks-) as well as the activation energy were determined; |
5,5’-dithiobis(2-nitrobenzoate)
A
5-thio-2-nitrobenzoic acid
B
3-carboxylate-4-nitrothiophenoxide ion
Conditions | Yield |
---|---|
With sodium dithionite; di-C18 vesicles; Tris buffer; potassium chloride at 25℃; Rate constant; also Di-C16 vesicles, also laced with varying ammounts cholesterol; |
5,5'-dithiobis-(2-nitrobenzoic acid)
L-cysteine ethylester
A
5-thio-2-nitrobenzoic acid
Conditions | Yield |
---|---|
In water at 25℃; Rate constant; spectroscopic method, variation of the pH: the rate constant for the thiol-disulfide exchange (kSH) and for the thiolate ion-disulfide exchange (Ks-) as well as the activation energy were determined; |
A
5-thio-2-nitrobenzoic acid
B
acrylonitrile
Conditions | Yield |
---|---|
hydroxide In water; dimethyl sulfoxide at 25℃; Rate constant; elimination, other base; |
A
5-thio-2-nitrobenzoic acid
B
1,2-Dicyanoethylene
Conditions | Yield |
---|---|
piperidine In water; dimethyl sulfoxide at 25℃; Rate constant; elimination, other bases; |
5,5'-dithiobis-(2-nitrobenzoic acid)
Cysteamine
A
5-thio-2-nitrobenzoic acid
B
S-<(3-carboxy-4-nitrophenyl)thio>-2-aminoethanethiol
Conditions | Yield |
---|---|
In water at 25℃; Rate constant; spectroscopic method, variation of the pH: the rate constant for the thiol-disulfide exchange (kSH) and for the thiolate ion-disulfide exchange (Ks-) as well as the activation energy were determined; |
5,5'-dithiobis-(2-nitrobenzoic acid)
3-mercaptopropionic acid
A
5-thio-2-nitrobenzoic acid
Conditions | Yield |
---|---|
In water at 25℃; Rate constant; spectroscopic method, variation of the pH: the rate constant for the thiol-disulfide exchange (kSH) and for the thiolate ion-disulfide exchange (Ks-) as well as the activation energy were determined; | |
With ethylenediaminetetraacetic acid; MES buffer Rate constant; ionic strength dependency; |
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