993-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 993-89-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,9 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 993-89:
(5*9)+(4*9)+(3*3)+(2*8)+(1*9)=115
115 % 10 = 5
So 993-89-5 is a valid CAS Registry Number.