90017-09-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90017-09-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,0,1 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 90017-09:
(7*9)+(6*0)+(5*0)+(4*1)+(3*7)+(2*0)+(1*9)=97
97 % 10 = 7
So 90017-09-7 is a valid CAS Registry Number.
90017-09-7Relevant articles and documents
Synthesis of substituted 1,3,4-oxadiazoles under microwave irradiation
Wang, Xicun,Liu, Juan,Li, Zheng
, p. 627 - 630 (2007/10/03)
A series of substituted 1,3,4-oxadiazoles were synthesized by the cyclization of 2,6-pyridine dicarboxylic acid, 5-(4′-carboxyl-phenyl)-2- furanylcarboxylic acid, or p-phthalic acid, and aryl hydrazines in the presence of phosphorus oxychloride under the