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134172-77-3

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134172-77-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134172-77-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,1,7 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 134172-77:
(8*1)+(7*3)+(6*4)+(5*1)+(4*7)+(3*2)+(2*7)+(1*7)=113
113 % 10 = 3
So 134172-77-3 is a valid CAS Registry Number.

134172-77-3Downstream Products

134172-77-3Relevant articles and documents

Initial steps in the reductive condensation of trichloromethylarenes with hydroxylamine and hydrazines in pyridine

Belen'kii, L. I.,Poddubnyi, I. S.,Krayushkin, M. M.

, p. 1844 - 1848 (1993)

Data concerning the initial steps in the reductive condensation of trichloromethylarenes with hydroxylamine or hydrazines in pyridine have been obtained.High yields of the products of the reductive condensation obtained even at equimolar ratios of trichloromethylarene with hydroxylamine or hydrazine as well as the formation of unusual products, i.e., 4-pyridylhydrazones of substituted benzaldehydes, have been interpreted as the results of the participation of pyridine in the reaction as a reductive agent. - Key words: trichloromethylarenes, reductive condensation with hydroxylamine or hydrazines, role of pyridine; 4-pyridylhydrazones of substituted benhaldehydes.

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