3216-13-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3216-13-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,1 and 6 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 3216-13:
(6*3)+(5*2)+(4*1)+(3*6)+(2*1)+(1*3)=55
55 % 10 = 5
So 3216-13-5 is a valid CAS Registry Number.