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Cas:14340-04-6
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
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
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Min.Order:10 Gram
FOB Price: $146.0 / 176.0
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:14340-04-6
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry17α-Acetoxy-19-norpregna-4,9-diene-3,20-dione CAS:14340-04-6 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializi
Cas:14340-04-6
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryCompany Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments
Cas:14340-04-6
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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
Product 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:14340-04-6
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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
Cas:14340-04-6
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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Cas:14340-04-6
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirywith high qualityAppearance:white powder Storage:Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Package:25kg/drum Application:as intermediates Transportation:by courier, air or sea Port:At any port from China
Cas:14340-04-6
Min.Order:0
Negotiable
Type:Manufacturers
inquiryJinhua huayi chemical co., ltd. is dedicated to the development, production and marketing of chemicals. On the basis of equality and mutual benefit, and under the principle of customer first, credit first, quality first, we are ready to join hands
Cas:14340-04-6
Min.Order:100 Gram
Negotiable
Type:Lab/Research institutions
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Cas:14340-04-6
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Negotiable
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Cas:14340-04-6
Min.Order:0
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Type:Lab/Research institutions
inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:14340-04-6
Min.Order:0
Negotiable
Type:Trading Company
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Cas:14340-04-6
Min.Order:0
Negotiable
Type:Trading Company
inquiryCompound sourcing ServicesAgency of testing serviceFactory audit serviceFounded in Dec. 1999, Nanjing Chemlin Chemical Industrial Co.,Ltd(CHEMLIN) has been covering the business scope from trading of chemicals to custom-synthesis & Manufacturing. Co
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Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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Cas:14340-04-6
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry98% HPLC, High purity Storage:Normal save Package:100g 1kg 10kg 25kg Application:Scientific and medical fields
Cas:14340-04-6
Min.Order:0
Negotiable
Type:Trading Company
inquiryacetic acid
3,3-[1,2-ethanediylbis(oxy)]-17α-hydroxy-19-norpregna-5(10),9(11)-diene-20-one
17α-acetoxy-19-norpregna-4,9-diene-3,20-dione
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid; trifluoroacetic anhydride In dichloromethane at 0℃; for 0.166667h; | 99% |
With toluene-4-sulfonic acid; trifluoroacetic anhydride In dichloromethane at 0℃; for 0.166667h; | 99% |
acetic acid
17α-hydroxy-19-norpregna-4(5),9(10)-diene-3,20-dione
17α-acetoxy-19-norpregna-4,9-diene-3,20-dione
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid; trifluoroacetic anhydride In dichloromethane at 0℃; for 0.25h; | 62.3% |
17α-acetoxy-19-norpregna-4,9-diene-3,20-dione
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: PYRIMIDINE / toluene / 20 - 60 °C 2: tetrahydrofuran / toluene / 16 h / Inert atmosphere; Reflux 3: toluene-4-sulfonic acid; trifluoroacetic anhydride / dichloromethane / 0.17 h / 0 °C View Scheme |
ethylene deltenone
17α-acetoxy-19-norpregna-4,9-diene-3,20-dione
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: acetic acid / methanol / 6 h / 20 °C 2: PYRIMIDINE / toluene / 20 - 60 °C 3: tetrahydrofuran / toluene / 16 h / Inert atmosphere; Reflux 4: toluene-4-sulfonic acid; trifluoroacetic anhydride / dichloromethane / 0.17 h / 0 °C View Scheme |
17β-cyano-3,3-[1,2-ethanediylbis(oxy)]-17α-trimethylsilyloxyestra-5(10),9(11)-diene
17α-acetoxy-19-norpregna-4,9-diene-3,20-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: tetrahydrofuran / toluene / 16 h / Inert atmosphere; Reflux 2: toluene-4-sulfonic acid; trifluoroacetic anhydride / dichloromethane / 0.17 h / 0 °C View Scheme |
ethylene glycol
17α-acetoxy-19-norpregna-4,9-diene-3,20-dione
17α-acetoxy-3,3[1,2-ethanediylbis(oxy)]-19-norpregna-5(10),9(11)-diene-20-one
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid; orthoformic acid triethyl ester In dichloromethane at 20℃; for 0.5h; | 100% |
In toluene Reflux; | 54 g |
17α-acetoxy-19-norpregna-4,9-diene-3,20-dione
17α-acetoxy-3,3[1,2-ethanediylbis(oxy)]-19-norpregna-5(10),9(11)-diene-20-one
Conditions | Yield |
---|---|
Stage #1: ethylene glycol; toluene-4-sulfonic acid In toluene Heating / reflux; Stage #2: 17α-acetoxy-19-norpregna-4,9-diene-3,20-dione In toluene Heating / reflux; |
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