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1219972-91-4

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1219972-91-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1219972-91-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,9,9,7 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1219972-91:
(9*1)+(8*2)+(7*1)+(6*9)+(5*9)+(4*7)+(3*2)+(2*9)+(1*1)=184
184 % 10 = 4
So 1219972-91-4 is a valid CAS Registry Number.

1219972-91-4Relevant academic research and scientific papers

Rh(i)-catalyzed intramolecular [3 + 2] cycloaddition reactions of 1-ene-, 1-yne- and 1-allene-vinylcyclopropanes

Jiao, Lei,Lin, Mu,Yu, Zhi-Xiang

, p. 1059 - 1061 (2010)

New Rh(i)-catalyzed intramolecular [3 + 2] cycloaddition reactions of 1-ene-, 1-yne and 1-allene-vinylcyclopropanes have been developed, affording an efficient and versatile synthesis of cyclopentane- and cyclopentene-embedded bicyclic structures.

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