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123532-16-1

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123532-16-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123532-16-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,5,3 and 2 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 123532-16:
(8*1)+(7*2)+(6*3)+(5*5)+(4*3)+(3*2)+(2*1)+(1*6)=91
91 % 10 = 1
So 123532-16-1 is a valid CAS Registry Number.

123532-16-1Relevant articles and documents

STUDIES OF CHROMONE DERIVATIVES. PART XV. REACTIONS OF CHROMONE AND ITS DERIVATIVES WITH METHYLHYDRAZINE

Nawrot-Modranka, Jolanta,Kostka, Krzysztof

, p. 417 - 426 (2007/10/02)

The transformations of chromone, 6-methyl-, 6-nitro-, and 8-methylchromone with methylhydrazine have been studied.Two series of pyrazoles (A and B) were obtained and transformation intermediates have been isolated.The structure of these compounds has been established and the reaction course of chromone and its derivatives with methylhydrazine is proposed.

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