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123507-31-3

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123507-31-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123507-31-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,5,0 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 123507-31:
(8*1)+(7*2)+(6*3)+(5*5)+(4*0)+(3*7)+(2*3)+(1*1)=93
93 % 10 = 3
So 123507-31-3 is a valid CAS Registry Number.

123507-31-3Relevant articles and documents

Complete Control of the Rearrangement Modes of Enolates of α-Allyloxy Ketones: Reversal from the -Claisen to the -Wittig Pathway by the Use of the Metalated N,N-Dimethylhydrazones

Luengo, Juan I.,Koreeda, Masato

, p. 5415 - 5417 (1989)

It has been shown that the predilection for the -Claisen rearrangement pathway of enolates of α-allyloxy ketones is cleanly overridden by the -Wittig rearrangement route with the use of carboanions of their corresponding N,N-dimethylhydrazones.S

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