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187218-59-3

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187218-59-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 187218-59-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,2,1 and 8 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 187218-59:
(8*1)+(7*8)+(6*7)+(5*2)+(4*1)+(3*8)+(2*5)+(1*9)=163
163 % 10 = 3
So 187218-59-3 is a valid CAS Registry Number.

187218-59-3Upstream product

187218-59-3Relevant articles and documents

Synthesis of Glycyrrhizin analogues containing fluorinated β(1→2)-linked disaccharides

Morishima, Naohiko,Mori, Yoko

, p. 1799 - 1808 (2007/10/03)

For studies on the recognition mechanisms for Glycyrrhizin-induced biological activities, seven Glycyrrhizin analogues with 3'-, 4'-, 6'-, 3-, and 4-fluorinated 2-O-β-D-glucopyranosyl-β-D-glucopyranoses (1-5) and 3- and 4-fluorinated 2-O-β-D-glucopyranuronosyl-β-D-glucopyranoses (6 and 7) were synthesized through a stepwise glycosylation procedure. 1,2-Di-O-acetyl-4,6-di-O-benzyl-3-deoxy-3-fluoro- (13) and 1,2-di-O-acetyl-3,6-di-O-benzyl-4-deoxy-4-fluoro-D-glucopyranose (14) were employed for the first β-glycosylation of methyl glycyrrhetate, promoted with trimethylsilyl trifluoromethanesulfonate.

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