90330-23-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90330-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,3,3 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90330-23:
(7*9)+(6*0)+(5*3)+(4*3)+(3*0)+(2*2)+(1*3)=97
97 % 10 = 7
So 90330-23-7 is a valid CAS Registry Number.
90330-23-7Relevant articles and documents
SYNTHESIS OF 1--1,2,4-TRIAZOLE-3- AND 5-CARBOXAMIDES
Lin, Tai-Shun,Liu, Mao-Chin
, p. 611 - 612 (2007/10/02)
Coupling of trimethylsilyl derivative of methyl 1,2,4-triazole-3-carboxylate with 2-O-(chloromethyl)-1,3-di-O-benzyl glycerol, followed by amination and removal of the protecting groups afforded 1--1,2,4-triazole