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1093198-50-5

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1093198-50-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1093198-50-5 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 0 respectively.
Calculate Digit Verification of CAS Registry Number 1093198-50:
(9*1)+(8*0)+(7*9)+(6*3)+(5*1)+(4*9)+(3*8)+(2*5)+(1*0)=165
165 % 10 = 5
So 1093198-50-5 is a valid CAS Registry Number.

1093198-50-5Downstream Products

1093198-50-5Relevant articles and documents

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

Umetsu, Kazuteru,Asao, Naoki

scheme or table, p. 7046 - 7049 (2009/04/07)

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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