93031-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93031-91-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,0,3 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 93031-91:
(7*9)+(6*3)+(5*0)+(4*3)+(3*1)+(2*9)+(1*1)=115
115 % 10 = 5
So 93031-91-5 is a valid CAS Registry Number.