91881-03-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91881-03-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,8,8 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 91881-03:
(7*9)+(6*1)+(5*8)+(4*8)+(3*1)+(2*0)+(1*3)=147
147 % 10 = 7
So 91881-03-7 is a valid CAS Registry Number.