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85204-31-5

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85204-31-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 85204-31-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,2,0 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 85204-31:
(7*8)+(6*5)+(5*2)+(4*0)+(3*4)+(2*3)+(1*1)=115
115 % 10 = 5
So 85204-31-5 is a valid CAS Registry Number.

85204-31-5Relevant articles and documents

Lipase-mediated kinetic separation of a diastereomeric mixture of 4-tert-butylcyclohexanemethanol

Hiroya,Hasegawa,Watanabe,Ogasawara

, p. 379 - 381 (2007/10/02)

Diastereomerically pure trans- and cis-4-tert-butylcyclohexanemethanols have been obtained by kinetic acylation of the diastereomeric alcohol in an organic medium and by kinetic deacylation of the diastereomeric acetate in an aqueous medium both in the presence of the same lipase (lipase PS, Pseudomonas sp., Amano). The reactions take place preferentially with the trans-isomers both in organic and aqueous media to give the trans-acetate with recovery of the cis-alcohol on acylation in an organic medium,and the trans-alcohol with recovery of the cis-acetate on deacylation in an aqueous medium.

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