19291-83-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19291-83-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,2,9 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 19291-83:
(7*1)+(6*9)+(5*2)+(4*9)+(3*1)+(2*8)+(1*3)=129
129 % 10 = 9
So 19291-83-9 is a valid CAS Registry Number.