1338784-55-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1338784-55-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,8,7,8 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1338784-55:
(9*1)+(8*3)+(7*3)+(6*8)+(5*7)+(4*8)+(3*4)+(2*5)+(1*5)=196
196 % 10 = 6
So 1338784-55-6 is a valid CAS Registry Number.
1338784-55-6Relevant articles and documents
One-step synthesis of 2,4,5-trisubstituted pyrimidines
Zhang, Chuang-Jun,Han, Wen-Yong,Gao, Mi-Xiang,Xu, Fei-Fei,Zhang, Zun-Ting
experimental part, p. 1073 - 1078 (2011/11/04)
A simple and straightforward methodology towards the synthesis of 2,4,5-trisubstituted pyrimidines has been developed by one-step reaction of isoflavones with thiourea or guanidine. Ten 2-mercapto-4,5-diphenylpyrimidines and eight 2-amino-4,5-diphenylpyri
