98657-88-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98657-88-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,6,5 and 7 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 98657-88:
(7*9)+(6*8)+(5*6)+(4*5)+(3*7)+(2*8)+(1*8)=206
206 % 10 = 6
So 98657-88-6 is a valid CAS Registry Number.