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187330-14-9

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187330-14-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 187330-14-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,3,3 and 0 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 187330-14:
(8*1)+(7*8)+(6*7)+(5*3)+(4*3)+(3*0)+(2*1)+(1*4)=139
139 % 10 = 9
So 187330-14-9 is a valid CAS Registry Number.

187330-14-9Upstream product

187330-14-9Relevant articles and documents

A new strategy for stereoselective synthesis of sialic acid-containing glycopeptide fragment

Wang, Zhi-Guang,Zhang, Xu-Fang,Ito, Yukishige,Nakahara, Yoshiaki,Ogawa, Tomoya

, p. 1901 - 1908 (2007/10/03)

Sialic acid donor 5, which has a thiophenyl group as a stereocontrolling auxiliary and thiomethyl group as a leaving group was prepared and subjected to model glycosylation. Reactions with acceptor substrates 6, 7, and 8 gave coupled products 9b, 10b, and 11b, respectively, in a higher efficiency than previously observed for the bromide 1a. This reaction was further applied to the synthesis of protected glyco-amino acid fragment 12, that is strategically designed for the synthesis of sialic acid containing glycopeptides.

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