220299-33-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220299-33-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,2,9 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 220299-33:
(8*2)+(7*2)+(6*0)+(5*2)+(4*9)+(3*9)+(2*3)+(1*3)=112
112 % 10 = 2
So 220299-33-2 is a valid CAS Registry Number.