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331281-75-5

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331281-75-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 331281-75-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,2,8 and 1 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 331281-75:
(8*3)+(7*3)+(6*1)+(5*2)+(4*8)+(3*1)+(2*7)+(1*5)=115
115 % 10 = 5
So 331281-75-5 is a valid CAS Registry Number.

331281-75-5Relevant articles and documents

para-Chlorophenyl carbonate as a versatile hydroxyl protecting group

Love,Seeberger

, p. 317 - 322 (2007/10/03)

The p-chlorophenyl carbonate (CPC) group can be readily applied and rapidly removed in the presence of various protecting groups including pivaloyl and benzoyl esters. Additionally, the CPC group is stable under a variety of glycosylation conditions and yields solely β-linked glycosides when used as a C2 participating group.

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