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Benzene, 1,1'-[(2,3-dimethylcyclopropylidene)ethenylidene]bis-, trans- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

137451-91-3

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137451-91-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137451-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,4,5 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 137451-91:
(8*1)+(7*3)+(6*7)+(5*4)+(4*5)+(3*1)+(2*9)+(1*1)=133
133 % 10 = 3
So 137451-91-3 is a valid CAS Registry Number.

137451-91-3Relevant academic research and scientific papers

General and Convenient Route to Alkenylidenecyclopropanes: Generation of Alkenylidenecarbenes from 1,1-Dibromocyclopropanes under Phase-transfer Conditions

Isagawa, Kakuzo,Mizuno, Kazuhiko,Sugita, Hikaru,Otsuji, Yoshio

, p. 2283 - 2285 (2007/10/02)

Alkenylidenecyclopropanes have been prepared in a stereospecific manner by the reaction of 1,1-disubstituted 2,2-dibromocyclopropanes with sodium hydroxide under phase-transfer conditions in the presence of alkenes.

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