960-21-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 960-21-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,6 and 0 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 960-21:
(5*9)+(4*6)+(3*0)+(2*2)+(1*1)=74
74 % 10 = 4
So 960-21-4 is a valid CAS Registry Number.