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853654-19-0

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853654-19-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 853654-19-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,3,6,5 and 4 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 853654-19:
(8*8)+(7*5)+(6*3)+(5*6)+(4*5)+(3*4)+(2*1)+(1*9)=190
190 % 10 = 0
So 853654-19-0 is a valid CAS Registry Number.

853654-19-0Relevant articles and documents

The para-siletanylbenzyl (PSB) ether: A peroxide-cleavable protecting group for alcohols and phenols

Lam, Hubert,House, Sarah E.,Dudley, Gregory B.

, p. 3283 - 3285 (2005)

A novel arylmethyl protecting group that is electronically similar to benzyl (Bn) but that can be cleaved under mild oxidizing conditions in the presence of para-methoxybenzyl (PMB) is described herein. para-Siletanylbenzyl (PSB) ethers are formed in one or two steps from the corresponding alcohols and cleaved in one or two steps with basic peroxide. Alcohols and phenols have been protected in good yields and deprotected cleanly under mild oxidative conditions.

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