16021-33-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16021-33-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,0,2 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 16021-33:
(7*1)+(6*6)+(5*0)+(4*2)+(3*1)+(2*3)+(1*3)=63
63 % 10 = 3
So 16021-33-3 is a valid CAS Registry Number.