17-year experience in Phytochemicals Each product has passed very strict tests (NMR\MS\HPLC) Agents in 13 countries Certified by ISO 9001:2008 quality management system Leader Supplier of Botanical Reference Materials in China
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Cas:3789-75-1
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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
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inquiryADVANTAGE:1. More than 3,000 Chinese medicine reference substances / standard products available from stock, issued on the same day, multiple cities can be delivered the next day2. The products are provided with COA, HPLC, NMR, quality assurance, pac
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inquirySupply top quality products with a reasonable price Application:api
3-HYDROXY-4-PHENYLAZO-NAPHTHALENE-2-CARBOXYLIC ACID PHENYLAMIDEAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
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inquiry*stable and better quality products*efficient and meticulous servicesAppearance:Powder Storage:Store in dry, cool and ventilated place Package:1kg/tin 5kg/tin 25kg/carton Application:Use in healthcare products. Use in food products. Use in Cosmetic p
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inquiryGood Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen
home-produced Application:medicine
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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
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Cas:3789-75-1
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inquiryHigh purity , competitive price , warm sevice , providing HPLC ,MS , NMR , COA. The quality is guaranteed. If you find the product is wrong compared with COA, we promise 100% refund or change product. Package Size: 500mg/1g standard packing
We are a leading supplier of phytochemical reference standards.We are confidant that we will assure you of any quality problems and provide you with competitive price.In addition, if you ordered, we can send you products first with Net 30 days paym
Price, service, company and transport advantage: 1. Best service, place of origin China, high quality, and reasonable price. 2. It's customers' right to choose the package (EMS, DHL, FEDEX, UPS). 3. It's customers' right
Shaanxi Cuicheng Biomedical Technology Co., Ltd. is located in Chuangzhi Industrial Park, Economic and Technological Development Zone, Hanzhong City, Shaanxi Province, China. It is a company specializing in natural medicines and high-throughput scree
High Quality Best Price Storage:Store in dry, dark and ventilated place Application:Chemical Synthesis Intermediate
High Purity, Low Price, Spot Supplies Storage:2-8°C, dry, dark and sealed Package:20mg?standard packing or according to customers' requirement Application:Only for Content determination Transportation:SF EXpress Port:/
2,3-oxynaphthoic acid phenylamide
benzene diazonium chloride
1-phenylazo-2-hydroxy-3-phenylcarbamoylnaphthalene
Conditions | Yield |
---|---|
With sodium hydroxide at 10℃; for 30h; | 94.9% |
benzenediazonium
2-hydroxy-3-phenylcarbamoyl-naphthalene-1-sulfonic acid
1-phenylazo-2-hydroxy-3-phenylcarbamoylnaphthalene
Conditions | Yield |
---|---|
in alkal. Loesung; |
2,3-oxynaphthoic acid phenylamide
1-phenylazo-2-hydroxy-3-phenylcarbamoylnaphthalene
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: nitrobenzene; chlorosulfonic acid / 50 - 60 °C 2: in alkal. Loesung View Scheme |
1-phenylazo-2-hydroxy-3-phenylcarbamoylnaphthalene
methyl iodide
N-methyl-1-phenylazo-2-methoxy-3-naphthanilide
Conditions | Yield |
---|---|
With sodium hydride In dimethyl sulfoxide at 40℃; for 38h; | 28.8% |
1-phenylazo-2-hydroxy-3-phenylcarbamoylnaphthalene
methyl iodide
1-phenylazo-2-hydroxy-3-naphtho-N-methylanilide
Conditions | Yield |
---|---|
With potassium hydroxide In dimethyl sulfoxide at 40 - 42℃; |
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