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83544-54-1

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83544-54-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83544-54-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,5,4 and 4 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 83544-54:
(7*8)+(6*3)+(5*5)+(4*4)+(3*4)+(2*5)+(1*4)=141
141 % 10 = 1
So 83544-54-1 is a valid CAS Registry Number.

83544-54-1Relevant articles and documents

Acylaminoacetyl Derivatives of Active Methylene Compounds. 1. The Cyclization of the Benzoylaminoacetyl Derivatives to α-Substituted Tetramic Acids (1)

Igglessi-Markopoulou, Olga,Sandris, Constantine

, p. 883 - 890 (2007/10/02)

Hippuric acid was converted to α-Y-substituted tetramic acids (Y = -CN, -CO2R and -COCH3) according to the following general scheme of reactions: a) preparation of the hippuric acid chloride or of its p-nitrophenyl ester; b) C-acylation of an active methy

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