22431-55-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22431-55-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,4,3 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 22431-55:
(7*2)+(6*2)+(5*4)+(4*3)+(3*1)+(2*5)+(1*5)=76
76 % 10 = 6
So 22431-55-6 is a valid CAS Registry Number.