33421-59-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33421-59-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,4,2 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 33421-59:
(7*3)+(6*3)+(5*4)+(4*2)+(3*1)+(2*5)+(1*9)=89
89 % 10 = 9
So 33421-59-9 is a valid CAS Registry Number.
33421-59-9Relevant articles and documents
Synthesis and inotropic activity of pyrazolo[4,3-c]pyridine-4-ones and related compounds
Ogawa,Miyoshi
, p. 581 - 585 (2007/10/02)
Two series of 3,6-dimethyl-1-phenyl-1H-pyrazolo[4,3-c]pyridine-4-ones (5- 9) and 3,6-dimethyl-1-phenyl-1H-pyrazolo[4,3-c]pyridine-4-thiones (11-13) were prepared from dehydroacetic acid as starting material and evaluated for positive inotropic activity in