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75993-62-3

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75993-62-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75993-62-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,9,9 and 3 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 75993-62:
(7*7)+(6*5)+(5*9)+(4*9)+(3*3)+(2*6)+(1*2)=183
183 % 10 = 3
So 75993-62-3 is a valid CAS Registry Number.

75993-62-3Relevant articles and documents

Hydrolysis of Esters and Amides in Strongly Basic Solution. Evidence for the Intermediacy of Carbanions

Broxton Trevor, J.,Duddy, Neil W.

, p. 1186 - 1191 (2007/10/02)

Kinetic studies of the decomposition of the carbaninons derived from a number of esters and amides of p-nitrophenylacetic acid in strongly basic solution have been carried out.Kinetic solvents isotop effects and the large Hammett ρ value for substituents on the aromatic ring of substituted phenyl esters of p-nitrophenylacetic acid suggest decomposition occurs by an E1cB mechanism.Furthermore, it appears that the carbanion can decompose by either an ionic or a free-radical mechanism, depeneding on the nucleofugality of the leaving group.An intermediate predicted to be 4-nitrophenyl ketone ha been detected spestroscopically in a number of cases.

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