21202-02-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21202-02-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,0 and 2 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 21202-02:
(7*2)+(6*1)+(5*2)+(4*0)+(3*2)+(2*0)+(1*2)=38
38 % 10 = 8
So 21202-02-8 is a valid CAS Registry Number.