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690996-23-7

690996-23-7

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690996-23-7 Usage

Chemical Properties

Yellow Solid

Uses

Protected Estetrol.

Check Digit Verification of cas no

The CAS Registry Mumber 690996-23-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,9,9 and 6 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 690996-23:
(8*6)+(7*9)+(6*0)+(5*9)+(4*9)+(3*6)+(2*2)+(1*3)=217
217 % 10 = 7
So 690996-23-7 is a valid CAS Registry Number.

690996-23-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name [(8R,9S,13S,14S,15R,16R,17S)-3,15,16-trihydroxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-17-yl] acetate

1.2 Other means of identification

Product number -
Other names Estetrol 17-Acetate

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:690996-23-7 SDS

690996-23-7Downstream Products

690996-23-7Relevant articles and documents

PROCESS FOR THE PREPARATION OF ESTETROL

-

, (2013/03/26)

The present invention relates to a process for the preparation of estra-1,3,5(10)- trien-3, 15α, 16α, 17β-tetraol (estetrol), via a silyl enol ether derivative 17-B-oxy-3-A-oxy-estra-l,3,5(10), 16-tetraene, wherein A is a protecting group and B is -Si(R2)3. The invention further relates to a process for the synthesis of 3-A-oxy-estra-1,3,5(10), 15-tetraen-17-one, wherein A is a protecting group, via said silyl enol ether derivative.

SYNTHESIS OF ESTETROL VIA ESTRONE DERIVED STEROIDS

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Page 27-28, (2008/06/13)

A process is provided for the making of estetrol starting from a 3-A-oxy-estra 1,3,5(10),15-tetraen-17-one, wherein A is an C1-C5 alkyl group, preferably a methyl group, or a C7 - C12 benzylic group, preferably a benzyl group. This process is particularly suitable to industry.

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