22002-55-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22002-55-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,0,0 and 2 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 22002-55:
(7*2)+(6*2)+(5*0)+(4*0)+(3*2)+(2*5)+(1*5)=47
47 % 10 = 7
So 22002-55-7 is a valid CAS Registry Number.