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1093198-55-0

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1093198-55-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1093198-55-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,9,3,1,9 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1093198-55:
(9*1)+(8*0)+(7*9)+(6*3)+(5*1)+(4*9)+(3*8)+(2*5)+(1*5)=170
170 % 10 = 0
So 1093198-55-0 is a valid CAS Registry Number.

1093198-55-0Upstream product

1093198-55-0Downstream Products

1093198-55-0Relevant articles and documents

Gold-catalyzed transesterification of ortho-alkynylbenzoic acid esters: a novel protecting group for alcohols and phenols

Umetsu, Kazuteru,Asao, Naoki

, p. 7046 - 7049 (2008)

Treatment of ortho-alkynylbenzoic acid esters with excess amounts of EtOH in the presence of a gold catalyst results in the liberation of alcohols or phenols in high yields under mild conditions. The protection of alcohols and phenols proceeds smoothly by use of ortho-alkynylbenzoic acid or ortho-iodobenzoyl chloride. Highly chemoselective deprotections are described.

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