133100-21-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133100-21-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,1,0 and 0 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 133100-21:
(8*1)+(7*3)+(6*3)+(5*1)+(4*0)+(3*0)+(2*2)+(1*1)=57
57 % 10 = 7
So 133100-21-7 is a valid CAS Registry Number.
133100-21-7Relevant articles and documents
Receptor-based design of novel dihydrofolate reductase inhibitors: Benzimidazole and indole derivatives
Ohemeng,Roth
, p. 1383 - 1394 (2007/10/02)
Although many thousands of inhibitors of the enzyme dihydrofolate reductase (DHFR) have been synthesized, all of the very active compounds have been 2,4-diaminopyrimidines or very close analogues. This paper describes 2,4-diamino-6-benzylbenzimidazole (3b
