Home > Offer to Sell > Pharmaceuticals and Biochemicals > Hormones and synthetic substitutes > Animal health Pregnenolone Hot Sell
Animal health Pregnenolone Hot Sell
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| Post Date: | Jun 29,2018 |
| Expiry Date: | Dec 26,2018 |
| Detailed Description: |
Cas No. :145-13-1
Quantity: 1Metric Tons Price:1 USD Kilograms Payment Method: Wertern Union, Money Gram, T/T , Bitcoin Basic Info: Name:Pregnenolone Apearance: CAS:145-13-1 MF:C21H32O2 MW:316.48 Shipment:EMS,DHL,TNT,UPS,Fedx Package:disguised Payment: Bank Transfer,Bitcoin,WU,MoneyGram Chemical Properties White crystalline powder. The temperature of 193℃. Insoluble in water. Solubility in water (g/100ml):carbon tetrachloride 0.5, petroleum ether 0.1, ethyl acetate 1.1,acetone 0.6,chloroform 17.0,ethanol 1.9, benzene 0.9, isopropanol 1.5, propylene glycol 0.1, dioxane Ring 3.1, benzyl alcohol 8.1. Uses for biochemical research. Hormone progesterone intermediate intermediates. Purposes: for steroid intermediates and steroid drugs synthesis Purposes: for the pharmaceutical progesterone intermediates Production methods Acetic acid pregnancy ketone alcohol, Rehney nickel together heating, about 50℃ so that all the dissolved, and then vacuum into hydrogen, repeated three times, in the hydrogen through the stirring, the reaction at 34-36℃ 3.5 Lt; / RTI & gt; Standing, through the nitrogen out of hydrogen, filter out the catalyst. The filtrate was concentrated to recover most of the ethanol and precipitated crystals. Adding 50% potassium carbonate aqueous solution, refluxing 1.5h, concentrating and recovering methanol under reduced pressure, and cooling to 5 ℃ or lower after discharging, and filtering the filtrate and filtering the filtrate, filtering the filtrate, Take the crystallization, wash with warm water to neutral, drying. And then dissolved in 10 times the amount of ethanol, plus activated carbon decolorization, recrystallization 1, in pregnancy enolone ketone. Welcome inquiry and trying, here is Amy serving.If more details,emails pls. |
| CAS Registry Number: | 145-13-1 |
| Synonyms: | ;3beta-Hydroxy-5-pregnen-20-one;5-Pregnen-3beta-ol-20-one;5-pregnen-3B-ol-20-one;3-beta-hydroxypregn-5-en-20-one;3-hydroxypregn-5-en-20-one;(3beta)-3-hydroxypregn-5-en-20-one;(3beta,8xi,9xi,14xi)-3-hydroxypregn-5-en-20-one;(3beta,9xi,14xi)-3-hydroxypregn-5-en-20-one; |
| Molecular Formula: | C21H32O2 |
| Molecular Weight: | 316.4776 |
| Molecular Structure: | 
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| Safety Description: | S24/25:; |
| Company: | Zhuzhou Yuancheng Hezhong Technology Development Co., Ltd [ China ] |
| Contact: | Yu Chengzhen |
| Tel: | 86-731-22290202 |
| Fax: | |
| Email: | hnzz01@ycgmp.com |
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