220402-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220402-53-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,4,0 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 220402-53:
(8*2)+(7*2)+(6*0)+(5*4)+(4*0)+(3*2)+(2*5)+(1*3)=69
69 % 10 = 9
So 220402-53-9 is a valid CAS Registry Number.