118972-59-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118972-59-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,9,7 and 2 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 118972-59:
(8*1)+(7*1)+(6*8)+(5*9)+(4*7)+(3*2)+(2*5)+(1*9)=161
161 % 10 = 1
So 118972-59-1 is a valid CAS Registry Number.
118972-59-1Relevant articles and documents
New Heterocyclic System - Bis>-18-crown-6
Ivanov, E. I.,Polishchuk, A. A.,Terent'ev, P. B.
, p. 215 - 216 (2007/10/02)
It was shown that 1,2,3-triazole derivatives are formed in the reaction of tetranitrodibenzo-18-crown-6 with excess hydrazine or ethylhydrazine in DMSO, while the reaction with phenylhydrazine leads to isomeric products of nucleophilic substitution of the
