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900-83-4

900-83-4

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900-83-4 Usage

Chemical Properties

Pale Yellow Solid

Uses

Estrone 17-Ethylene Ketal is a Protected Estrone (E889050) used in the preparation of A-ring substituted estrogen derivatives as antitumor agents.

Check Digit Verification of cas no

The CAS Registry Mumber 900-83-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,0 and 0 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 900-83:
(5*9)+(4*0)+(3*0)+(2*8)+(1*3)=64
64 % 10 = 4
So 900-83-4 is a valid CAS Registry Number.

900-83-4SDS

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)-13-methyl-6,7,8,9,11,12,13,14,15,16-decahydrospiro[cyclopenta[a]phenanthrene-17,2'-[1,3]dioxolan]-3-ol

1.2 Other means of identification

Product number -
Other names Estrone 17-Ethylene Ketal

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:900-83-4 SDS

900-83-4Relevant articles and documents

Selective rhenium-catalyzed oxidation of secondary alcohols with methyl sulfoxide in the presence of ethylene glycol, a convenient one-pot synthesis of ketals

Arterburn, Jeffrey B.,Perry, Marc C.

, p. 769 - 771 (2008/02/12)

Formula presented Secondary alcohols are oxidized preferentially by DMSO and the catalyst ReOCl3(PPh3)2 in the presence of ethylene glycol and refluxing toluene, producing the corresponding ketals. The reactions are rapid, and proceed in very good to excellent yields. The byproducts of the reaction, methyl sulfide and water, are easily removed. No epoxidation or other common side reactions were observed. This direct oxidative transformation of alcohols to the protected ketal derivatives should have broad synthetic applicability.

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