Cas 1312997-13-9,C56H52ClN3O13Zn

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Check Digit Verification of cas no

The CAS Registry Mumber 1312997-13-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,2,9,9 and 7 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1312997-13:
(9*1)+(8*3)+(7*1)+(6*2)+(5*9)+(4*9)+(3*7)+(2*1)+(1*3)=159
159 % 10 = 9
So 1312997-13-9 is a valid CAS Registry Number.

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1312997-13-9Relevant academic research and scientific papers

Toward carboxylate group functionalized A4, A2B 2, A3B oxaporphyrins and zinc complex of oxaporphyrins

Ambre, Ram,Yu, Chien-Yi,Mane, Sandeep B.,Yao, Ching-Fa,Hung, Chen-Hsiung

, p. 4680 - 4688 (2011)

Series of new oxaporphyrins were isolated from the reaction of furan-1,4-diol, pyrrole, and an aldehyde under Lindsey's conditions, which gives easy access to ester group functionalized oxaporphyrins. The ester substituents can be readily hydrolyzed to te

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