131291-67-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131291-67-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,2,9 and 1 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 131291-67:
(8*1)+(7*3)+(6*1)+(5*2)+(4*9)+(3*1)+(2*6)+(1*7)=103
103 % 10 = 3
So 131291-67-3 is a valid CAS Registry Number.
131291-67-3Relevant articles and documents
Cyclometallated compounds VI. Cyclopalladation of 2-phenylpyrimidines with pendant pyrazole donors
Caygill, Graham B.,Steel, Peter
, p. 375 - 381 (1990)
The use of pendant pyrazole groups to induce double cyclopalladation of 2-phenylpyrimidines has been investigated. 4,6-Bis(pyrazol-1-yl)-2-phenylpyrimidine undergoes monocyclopalladation only, whilst 4-methyl-2-phenyl-6(pyrazol-1-ylmethyl)pyrimidine react