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16656-68-1

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16656-68-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16656-68-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,6,5 and 6 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 16656-68:
(7*1)+(6*6)+(5*6)+(4*5)+(3*6)+(2*6)+(1*8)=131
131 % 10 = 1
So 16656-68-1 is a valid CAS Registry Number.

16656-68-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name methyl 3,7-dioxo-5α-cholanoate

1.2 Other means of identification

Product number -
Other names (R)-4-((5R,8R,9S,10S,13R,14S,17R)-10,13-Dimethyl-3,7-dioxo-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-pentanoic acid methyl ester

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:16656-68-1 SDS

16656-68-1Relevant articles and documents

BILE ACIDS LXIX. SELECTIVE K-SELECTRIDE REDUCTION OF 3,7-DIKETO STEROIDS

Tal, Daniel M.,Frisch, G. Douglas,Elliott, William H.

, p. 851 - 854 (2007/10/02)

The K-Selectride reduction at low temperature (-45 C) of 7-oxo-5α-cholestan-3β-yl acetate and methyl 7-oxo-3α-hydroxy-5β-cholanoate resulted in almost quantitative yield of the 7α-alcohol in the 5α-compound but only moderate yield of the 5β-analog.The simultaneous reduction of two carbonyl in the 3 and 7 positions afforded good to excellent yields of the diaxial diol in planar steroids (methyl 3,7-dioxo-5α-cholanoate, 3,7-dioxo-5α-cholestane and methyl 3,7-dioxo-5α-cholestan-27-oate) and only 14percent of 3α,7α-(OH)2 from methyl 3,7-dioxo-5β-cholanoate.

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