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123775-41-7

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123775-41-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123775-41-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,7,7 and 5 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 123775-41:
(8*1)+(7*2)+(6*3)+(5*7)+(4*7)+(3*5)+(2*4)+(1*1)=127
127 % 10 = 7
So 123775-41-7 is a valid CAS Registry Number.

123775-41-7Downstream Products

123775-41-7Relevant articles and documents

Electrophilic β-Bromination and Nucleophilic α-Methoxylation of α,β-Unsaturated Carbonyl Compounds

Fischer, Hans,Klippe, Michael,Lerche, Holger,Severin, Theodor,Wanninger, Gabriele

, p. 399 - 404 (2007/10/02)

Oximes 29a,b, semicarbazones 11a-d, dimethylhydrazones 4, and hydrazones 23a-c of unsaturated aldehydes and ketones are brominated at the β-carbon by an addition-elimination sequence ( 21a,b, 13a-d, 7, and 27c, respectively.) When unsaturated ketone hydrazones are treated with bromine and methanol the α-methoxy-β-bromo derivatives 35a-c are obtained, which after hydrolysis and hydrobromic acid elimination give α-methoxy substitution products 36a-c of the starting compounds.

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