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223545-81-1

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223545-81-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 223545-81-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,5,4 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 223545-81:
(8*2)+(7*2)+(6*3)+(5*5)+(4*4)+(3*5)+(2*8)+(1*1)=121
121 % 10 = 1
So 223545-81-1 is a valid CAS Registry Number.

223545-81-1Relevant articles and documents

Glycosylation using 2-azido-3,4,6-tri-O-benzyl-2-deoxy-D-glucose, - galactose, and -mannose with the aid of p-nitrobenzenesulfonyl chloride- silver trifluoromethanesulfonate-triethylamine system

Koto, Shinkiti,Asami, Kazuyasu,Hirooka, Motoko,Nagura, Kazuo,Takizawa, Mizue,Yamamoto, Satoko,Okamoto, Nami,Sato, Mitsuko,Tajima, Hiromi,Yoshida, Toyosaku,Nonaka, Nobuo,Sato, Tadaaki,Zen, Shonosuke,Yago, Kazuo,Tomonaga, Fumiya

, p. 765 - 777 (2007/10/03)

This report describes a simple synthesis of 2-azido-3,4,6-tri-O-benzyl- 2-deoxy-D-glucopyranose. Glycosylation using this as well as 2-azido-3,4,6- tri-O-benzyl-2-deoxy-D-galactopyranose and -mannopyranose was achieved with the aid of a reagent system consisting of p-nitrobenzenesulfonyl chloride, silver trifluoromethanesulfonate, and triethylamine, and its modifications. O-(2-Acetamido-2-deoxy-β-D-glucopyranosyl)-(1 → 4)-O-α-D-mannopyranosyl- (1 → 4)-a-D-mannopyranose, the repeating unit of the main chain of the O- specific cell wall polysaccharide of E. coli 058 was synthesized.

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