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291780-68-2

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291780-68-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 291780-68-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,1,7,8 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 291780-68:
(8*2)+(7*9)+(6*1)+(5*7)+(4*8)+(3*0)+(2*6)+(1*8)=172
172 % 10 = 2
So 291780-68-2 is a valid CAS Registry Number.

291780-68-2Relevant articles and documents

Azo-linked corner porphyrin systems: Synthesis, crystal structures and spectroscopic investigation

Ba?i?, Bruno,McMurtrie, John C.,Arnold, Dennis P.

, p. 481 - 493 (2011/03/18)

1,2-bis[10,15-di(3,5-di-tert-butyl)phenylporphyrinatonickel(II)-5-yl] diazene was synthesised via copper-catalyzed coupling of aminated nickel(II) 5,10-diarylporphyrin ("corner porphyrin") and its X-ray crystal structure was determined. Two different crys

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