55687-43-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55687-43-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,6,8 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 55687-43:
(7*5)+(6*5)+(5*6)+(4*8)+(3*7)+(2*4)+(1*3)=159
159 % 10 = 9
So 55687-43-9 is a valid CAS Registry Number.
55687-43-9Relevant articles and documents
Synthesis and antimicrobial activity of C(4')-substituted analogs of trimethoprim
Kompis,Then,Boehni,et al.
, p. 17 - 22 (2007/10/02)
A series of 2,4-diamino-5-(3,5-dimethoxybenzyl)-pyrimidines substitute at C(4') of the benzene ring with a functionalized carbon atom was synthesized. The target substances were tested for inhibition of dihydrofolate reductases from E. coli and rat liver,