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81838-56-4

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81838-56-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81838-56-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,3 and 8 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 81838-56:
(7*8)+(6*1)+(5*8)+(4*3)+(3*8)+(2*5)+(1*6)=154
154 % 10 = 4
So 81838-56-4 is a valid CAS Registry Number.

81838-56-4Relevant articles and documents

A CONVENIENT PROCEDURE FOR DIPHENYLACETAMIDE DERIVATIVES PREPARATION

Eckstein, Z.,Jelenski, P.,Kowal, J.,Rusek, D.

, p. 201 - 208 (2007/10/02)

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