19889-45-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19889-45-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,8,8 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 19889-45:
(7*1)+(6*9)+(5*8)+(4*8)+(3*9)+(2*4)+(1*5)=173
173 % 10 = 3
So 19889-45-3 is a valid CAS Registry Number.
InChI:InChI=1/C10H13N3O2/c11-10(12)13-6-7-1-2-8-9(5-7)15-4-3-14-8/h1-2,5H,3-4,6H2,(H4,11,12,13)