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53463-31-3

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53463-31-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53463-31-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,4,6 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 53463-31:
(7*5)+(6*3)+(5*4)+(4*6)+(3*3)+(2*3)+(1*1)=113
113 % 10 = 3
So 53463-31-3 is a valid CAS Registry Number.

53463-31-3Relevant articles and documents

Phenylureas. Part 1. Mechanism of the basic hydrolysis of phenylureas

Laudien,Mitzner

, p. 2226 - 2229 (2007/10/03)

The mechanism of the hydrolytic decomposition of phenylureas in basic media in the pH range 12 to 14 is investigated. In this pH range a levelling of the rate-pH curve is observed as well as a change of the substituent influence on the hydrolysis rate. These experimental findings suggest the formation of an unreactive side product of the phenylurea in a parasitic side equilibrium at sufficiently high pH. The urea dissociates at the aryl-NH group to give its conjugate base. For the hydrolytic decomposition of phenylureas an addition-elimination mechanism is proposed as has been established for the alkaline hydrolysis of carboxylic acid esters and amides.

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