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123843-34-5

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123843-34-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123843-34-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,8,4 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 123843-34:
(8*1)+(7*2)+(6*3)+(5*8)+(4*4)+(3*3)+(2*3)+(1*4)=115
115 % 10 = 5
So 123843-34-5 is a valid CAS Registry Number.

123843-34-5Downstream Products

123843-34-5Relevant articles and documents

Studies of the use of elemento-organic compounds of the fifteenth and sixteenth groups in organic synthesis LXXI. Reaction of α-halogeno carboxylic derivatives with carbonyl compounds promoted by tributylstibine

Huang, Yao-Zeng,Chen, Chen,Shen, Yanchang

, p. 87 - 94 (2007/10/02)

α,β-Unsaturated esters and amides were conveniently obtained from the trialkylstibine-promoted reaction of α-halogenocarboxylic derivatives with carbonyl compounds.In this reaction, a quaternary stibonium salt is an active intermediate that can be trapped and can undergo further reaction with the substrate.

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