91030-88-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91030-88-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,0,3 and 0 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 91030-88:
(7*9)+(6*1)+(5*0)+(4*3)+(3*0)+(2*8)+(1*8)=105
105 % 10 = 5
So 91030-88-5 is a valid CAS Registry Number.