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197657-27-5

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197657-27-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 197657-27-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,6,5 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 197657-27:
(8*1)+(7*9)+(6*7)+(5*6)+(4*5)+(3*7)+(2*2)+(1*7)=195
195 % 10 = 5
So 197657-27-5 is a valid CAS Registry Number.

197657-27-5Relevant articles and documents

The synthesis of methyl-3-O-(β-D-fucopyranosyl)-β-D-quinovopyranoside and its 3′-O-, 2,3′-di-O-, and 2′,3′-di-O-methyl derivatives

Khatuntseva,Sherman,Shashkov,Dabrowski,Nifant'ev

, p. 205 - 210 (2007/10/03)

Methyl-3-O-(β-D-fucopyranosyl)-β-D-quinovopyranoside and its 3′-O-, 2,3′-di-O-, and 2′,3′-di-O-methyl derivatives were obtained by the regioselective Helferich glycosylation of methyl-2-O-benzyl-β-D-quinovopyranoside with the 2,3,4-tri-O-benzoyl-α-D-fucopyranosyl bromide followed by the methylation with diazomethane or methyl iodide.

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