As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch
Cas:13057-65-3
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Type:Lab/Research institutions
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:13057-65-3
Min.Order:1 Kilogram
FOB Price: $1.0 / 10.0
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inquiryAppearance:- Storage:R.T Package:100G/Bottle, 500G/Bottle, 1KG/Bottle or at customers reqirement. Application:Chemicals Transportation:Express/Sea/Air Port:Any port in China
Cas:13057-65-3
Min.Order:1 Kilogram
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Type:Lab/Research institutions
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:13057-65-3
Min.Order:1 Gram
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Type:Lab/Research institutions
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Cas:13057-65-3
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
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Cas:13057-65-3
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inquiryLower 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:13057-65-3
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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:13057-65-3
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inquiryIndependent research and development of impurities, familiar with the market and impurity characteristics; We can ship out on the same day if the products are in stock; Focus on impurity development of new products in the market; Expert in customizi
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Cas:13057-65-3
Min.Order:0
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Type:Lab/Research institutions
inquiryWe are professional supplier in China for this product, we are dedicated to providing customers with the best quality, price, and service. Please feel free to send us inquiries.Appearance:Please contact us for product details Package:As per shipment
Cas:13057-65-3
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inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:13057-65-3
Min.Order:0
Negotiable
Type:Trading Company
inquiry1. Our staff are all biomedical related majors with rich experience in the pharmaceutical industry, and can provide you with more professional services.2. Our supplier has a good quality management system, and the quality of products is reliable and
Cas:13057-65-3
Min.Order:0
Negotiable
Type:Trading Company
inquiryHigh purity Application:Pharmaceutical intermediates, Material synthesis and analyzing the expectant ingredients
Cas:13057-65-3
Min.Order:0
Negotiable
Type:Trading Company
inquiryConditions | Yield |
---|---|
With sodium hydride In tetrahydrofuran; mineral oil at 0℃; Reflux; | 74% |
guaifenesin
CVT-4786
Conditions | Yield |
---|---|
Stage #1: guaifenesin With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In aq. phosphate buffer; toluene at 25℃; for 0.0833333h; pH=6.8; Stage #2: With sodium hypochlorite; sodium chlorite In aq. phosphate buffer; water; toluene at 50℃; for 24h; pH=6.8; | 73% |
With 2,2,6,6-tetramethyl-piperidine-N-oxyl; sodium hypochlorite; sodium chlorite In water; acetonitrile at 35℃; aq. phosphate buffer; chemoselective reaction; | 37.4% |
Conditions | Yield |
---|---|
Stage #1: guaifenesin With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical In aq. phosphate buffer; toluene at 25℃; pH=6.8; Stage #2: With sodium hypochlorite; sodium chlorite In aq. phosphate buffer; toluene at 50℃; for 24h; chemoselective reaction; | A 10 %Spectr. B 73% |
2-methoxy-phenol
CVT-4786
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sodium hydride / tetrahydrofuran; mineral oil 2: sodium hydride / tetrahydrofuran; mineral oil / 0 °C / Reflux View Scheme |
Conditions | Yield |
---|---|
In methanol; diethyl ether | n/a |
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