91139-92-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91139-92-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,3 and 9 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91139-92:
(7*9)+(6*1)+(5*1)+(4*3)+(3*9)+(2*9)+(1*2)=133
133 % 10 = 3
So 91139-92-3 is a valid CAS Registry Number.