220221-33-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220221-33-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,2,2 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 220221-33:
(8*2)+(7*2)+(6*0)+(5*2)+(4*2)+(3*1)+(2*3)+(1*3)=60
60 % 10 = 0
So 220221-33-0 is a valid CAS Registry Number.