220913-33-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220913-33-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,9,1 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 220913-33:
(8*2)+(7*2)+(6*0)+(5*9)+(4*1)+(3*3)+(2*3)+(1*3)=97
97 % 10 = 7
So 220913-33-7 is a valid CAS Registry Number.