462653-67-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 462653-67-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,6,2,6,5 and 3 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 462653-67:
(8*4)+(7*6)+(6*2)+(5*6)+(4*5)+(3*3)+(2*6)+(1*7)=164
164 % 10 = 4
So 462653-67-4 is a valid CAS Registry Number.
462653-67-4Relevant articles and documents
Tetrazoles. 42. 2-4(Nitrophenyl)-5-functionally-substituted tetrazoles
Kharbash,Alam,Koreneva,Koldobskii
, p. 1493 - 1497 (2001)
We have studied the reactions of 5-methylsulfonyl-2-(4-nitrophenyl)tetrazole with N- and O-nucleophiles. For the first time we show that in 2-(4-nitrophenyl)-5-phenoxytetrazole, the tetrazole ring is substituted when treated with phenoxide ion, 4-nitrodiphenyl ether being formed.