7213-02-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7213-02-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,1 and 3 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 7213-02:
(6*7)+(5*2)+(4*1)+(3*3)+(2*0)+(1*2)=67
67 % 10 = 7
So 7213-02-7 is a valid CAS Registry Number.