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82543-07-5

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82543-07-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82543-07-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,5,4 and 3 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 82543-07:
(7*8)+(6*2)+(5*5)+(4*4)+(3*3)+(2*0)+(1*7)=125
125 % 10 = 5
So 82543-07-5 is a valid CAS Registry Number.

82543-07-5SDS

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 3β,7β-dihydroxy-15β,16β-methylene-5-androsten-17-one

1.2 Other means of identification

Product number -
Other names -

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:82543-07-5 SDS

82543-07-5Relevant articles and documents

Steroid hydroxylations with Botryodiplodia malorum and Colletotrichum lini

Romano, Andrea,Romano, Diego,Ragg, Enzio,Costantino, Francesca,Lenna, Roberto,Gandolfi, Raffaella,Molinari, Francesco

, p. 429 - 434 (2007/10/03)

An improved procedure for the microbial hydroxylations of dehydroepiandrosterone (DHEA, 1) and 15β,16β-methylene-dehydroepiandrosterone (2) was studied using whole cells of Botryodiplodia malorum and Colletotrichum lini. C. lini catalyzed 7α- and 15α-hydroxylation of 1 and 7α-hydroxylation of 2, while B. malorum gave 7β-hydroxylation of both the substrates. The stability of the enzymatic activity was higher in the presence of co-substrates (i.e., glucose or mannitol) allowing for repeated batches of the biotransformations. The yields of 7α,15α-dihydroxy-1 production were improved obtaining 5.8 g l-1 (recovered product) from 7.0 g l-1 of substrate. The structures of the hydroxylated products were assigned by a combination of two-dimensional NMR proton-proton and proton-carbon correlation techniques.

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