157795-63-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157795-63-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,7,9 and 5 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 157795-63:
(8*1)+(7*5)+(6*7)+(5*7)+(4*9)+(3*5)+(2*6)+(1*3)=186
186 % 10 = 6
So 157795-63-6 is a valid CAS Registry Number.
157795-63-6Relevant academic research and scientific papers
A Conformationally Constrained Conjugated Porphyrin Dimer
Gosper, Jeffrey J.,Ali, Mukhtar
, p. 1707 - 1708 (2007/10/02)
The synthesis, conformational analysis, and electronic absorption spectrum of a soluble, conformationally constrained porphyrin dimer linked via a buta-1,3-diyne unit attached to the β-pyrrolic positions is reported.
