108975-62-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108975-62-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,9,7 and 5 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 108975-62:
(8*1)+(7*0)+(6*8)+(5*9)+(4*7)+(3*5)+(2*6)+(1*2)=158
158 % 10 = 8
So 108975-62-8 is a valid CAS Registry Number.
108975-62-8Relevant articles and documents
Cyclotetramerization of modified Knorr pyrroles into porphyrins. A reinvestigation.
Jeandon, C.,Callot, H. J.
, p. 625 - 629 (2007/10/02)
The tetramerization of 3-ethyl-4-methyl-5-(methoxymethyl)pyrrole derivatives into is reinvestigated.This study demonstaretes that in most cases the starting material were misidentified and that, under controlled conditions, the pyrrole redistribution reac