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2274-73-9

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2274-73-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2274-73-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,7 and 4 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 2274-73:
(6*2)+(5*2)+(4*7)+(3*4)+(2*7)+(1*3)=79
79 % 10 = 9
So 2274-73-9 is a valid CAS Registry Number.

2274-73-9Relevant articles and documents

THIOSULFONIC ACIDS. XXXI. ARYLAZOARENETHIOSULFONATES

Boldyrev, B. G.,Grivnak, L. M.

, p. 324 - 330 (2007/10/02)

Arylazoarenethiosulfonates were obtained, and their structures and chemical characteristics were studied.It was shown that arylazoarenethiosulfonates have a nonionic structure, and this explains their high stability.It was established that they enter with difficulty into reactions with the release of nitrogen, but they enter readily into azo-coupling and reduction reactions.

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