888-21-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 888-21-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,8 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 888-21:
(5*8)+(4*8)+(3*8)+(2*2)+(1*1)=101
101 % 10 = 1
So 888-21-1 is a valid CAS Registry Number.