93998-13-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93998-13-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,9,9 and 8 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 93998-13:
(7*9)+(6*3)+(5*9)+(4*9)+(3*8)+(2*1)+(1*3)=191
191 % 10 = 1
So 93998-13-1 is a valid CAS Registry Number.