1158081-04-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1158081-04-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,5,8,0,8 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1158081-04:
(9*1)+(8*1)+(7*5)+(6*8)+(5*0)+(4*8)+(3*1)+(2*0)+(1*4)=139
139 % 10 = 9
So 1158081-04-9 is a valid CAS Registry Number.
1158081-04-9Relevant articles and documents
Novel synthesis of 2,4-dihydro-5-amino[1,2,4]triazol-3-ones from 1,3-disubstituted thioureas
Jin, Can,Liu, Chuangwei,Su, Weike
body text, p. 607 - 610 (2009/07/01)
A facile two-step synthesis of 2,4-dihydro-5-amino-[1,2,4]triazol-3-ones is described. Firstly, 1,3-disubstituted thioureas reacted with bis(trichloromethyl) carbonate (BTC) in the presence of a base such as NaHCO3 to form the intermediate 4-(a
