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23450-59-1

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23450-59-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23450-59-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,4,5 and 0 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 23450-59:
(7*2)+(6*3)+(5*4)+(4*5)+(3*0)+(2*5)+(1*9)=91
91 % 10 = 1
So 23450-59-1 is a valid CAS Registry Number.

23450-59-1Downstream Products

23450-59-1Relevant articles and documents

Mono C-alkylation and mono C-benzylation of barbituric acids through zinc/acid reduction of acyl, benzylidene, and alkylidene barbiturate intermediates

Jursic, Branko S.,Stevens, Edwin D.

, p. 2203 - 2210 (2007/10/03)

Through systematic exploration of reaction conditions, very efficient preparative procedures for obtaining large quantities of substituted 5-alkyl and 5-benzylbarbituric acids were developed. The procedure involves a two step preparation in which the second step is zinc dust/acid reduction. For preparation of 5-alkylbarbiturates, the first step is the preparation of either 5-acyl or 5-alkylidenebarbiturate. If 5-benzylbarbiturate is the target product, then the first step includes the preparation of 5-benzylidene. Regardless of the nature of the first step, all reactions presented synthetic yields around 90% and isolation and purification involves only crystallization.

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