21248-02-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21248-02-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,4 and 8 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 21248-02:
(7*2)+(6*1)+(5*2)+(4*4)+(3*8)+(2*0)+(1*2)=72
72 % 10 = 2
So 21248-02-2 is a valid CAS Registry Number.