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81713-21-5

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81713-21-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81713-21-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,1 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 81713-21:
(7*8)+(6*1)+(5*7)+(4*1)+(3*3)+(2*2)+(1*1)=115
115 % 10 = 5
So 81713-21-5 is a valid CAS Registry Number.

81713-21-5Relevant articles and documents

"STANDARDIZED INTERMEDIATES" FOR OLIGOSACCHARIDE SYNTHESIS. PRECURSORS OF D-GALACTOPYRANOSE RESIDUES HAVING CHAIN EXTENSION AT POSITION 3, OR POSITIONS 3 AND 2

Nashed, Mina A,Chowdhary, Manjit S,Anderson, Laurens

, p. 99 - 110 (2007/10/02)

A series of 2-O-benzoyl-4,6-di-O-benzyl-α-D-galactopyranosyl halides carrying either a second benzoyl group (8a, 12a) or a selectively removable, temporary protecting group (8b-d, 12b) at position 3 was synthesized from allyl α-D-galactopyranoside (1).The

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