243459-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 243459-72-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,3,4,5 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 243459-72:
(8*2)+(7*4)+(6*3)+(5*4)+(4*5)+(3*9)+(2*7)+(1*2)=145
145 % 10 = 5
So 243459-72-5 is a valid CAS Registry Number.
243459-72-5Relevant articles and documents
Synthesis and properties of unsymmetrical porphyrazines combining isoindole and diphenylpyrrole fragments
Vasil'ev,Kulinich,Shaposhnikov,Smirnov
, p. 314 - 319 (2007/10/03)
Reactions of 2-imino-5-amino-3,4-diphenyl-2H-pyrrole with hydrochlorides of 1,1-dichloro-3-amino-1H-isoindole and its chloro and bromo derivatives yielded unsymmetrical porphyrazines combining isoindole and diphenylpyrrole fragments.
