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55580-51-3

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55580-51-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55580-51-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,5,8 and 0 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 55580-51:
(7*5)+(6*5)+(5*5)+(4*8)+(3*0)+(2*5)+(1*1)=133
133 % 10 = 3
So 55580-51-3 is a valid CAS Registry Number.

55580-51-3Downstream Products

55580-51-3Relevant articles and documents

Synthesis of methylenedioxy-bearing 1-aryl-3-carboxylisoquinolines using a modified Ritter reaction procedure

Janin, Yves L.,Decaudin, Didier,Monneret, Claude,Poupon, Marie-France

, p. 5481 - 5485 (2004)

This paper describes original approaches aimed at the preparation of electron-rich 1-aryl-3-carboxylisoquinolines. Our first attempt led to an efficient preparation of 1-hydroxyisoquinoline-3-carboxylic acid methyl ester starting from bromophthalide via a

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