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31981-44-9

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31981-44-9 Usage

Flammability and Explosibility

Notclassified

Check Digit Verification of cas no

The CAS Registry Mumber 31981-44-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,9,8 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 31981-44:
(7*3)+(6*1)+(5*9)+(4*8)+(3*1)+(2*4)+(1*4)=119
119 % 10 = 9
So 31981-44-9 is a valid CAS Registry Number.
InChI:InChI=1/C22H30O4/c1-13(23)22(26-14(2)24)11-9-20-19-6-4-15-12-16(25)5-7-17(15)18(19)8-10-21(20,22)3/h12,17-20H,4-11H2,1-3H3/t17-,18+,19+,20-,21-,22-/m0/s1

31981-44-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name [(8R,9S,10R,13S,14S,17R)-17-acetyl-13-methyl-3-oxo-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-yl] acetate

1.2 Other means of identification

Product number -
Other names Gestonoronacetat

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:31981-44-9 SDS

31981-44-9Relevant articles and documents

Nomegestrol intermediate synthesizing method

-

, (2017/07/19)

The invention provides a nomegestrol intermediate synthesizing method. The nomegestrol intermediate synthesizing method is characterized in that nomegestrol intermediate synthesis utilizes compound of 4-estrenochrysene-3,17-diketone as a beginning raw material; a nomegestrol intermediate crude product can be obtained through cyaniding, silyl etherification, intramolecular nucleophilic substitution reaction, reduction reaction and esterification reaction; then the nomegestrol intermediate can be obtained through methyl alcohol and ethyl acetate crystallization. The preparation method disclosed by the invention utilizes a short synthesizing line, the intermediate has stable performance, product yield is high, production cost is low, a production process is easy to control, environmental pollution is small, and industrial production is facilitated.

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