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1393093-66-7

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1393093-66-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1393093-66-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,3,0,9 and 3 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1393093-66:
(9*1)+(8*3)+(7*9)+(6*3)+(5*0)+(4*9)+(3*3)+(2*6)+(1*6)=177
177 % 10 = 7
So 1393093-66-7 is a valid CAS Registry Number.

1393093-66-7Relevant articles and documents

An alternative approach to synthesis of 2-n-butyl-5-nitrobenzofuran derivative: A key starting material for dronedarone hydrochloride

Gopal, P. Raja,Chandrashekar,Saravanan,Bhaskar, B. Vijaya,Somaiah, P. Veera

, p. 1077 - 1085 (2012)

A practical synthesis of (2-butyl-5-nitrobenzofuran-3-yl)(4-hydroxyphenyl) methanone, a key intermediate in the preparation of anti arrhythmic drug, is described. The commercially available 4-nitrophenol (3) is converted in five steps to 2-butyl-5-nitrobenzofuran (9) which upon Friedel-Crafts acylation with 4-methoxybenzoyl chloride followed by deprotection of methyl group gives (2). Indian Academy of Sciences.

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