22180-19-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22180-19-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,1,8 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 22180-19:
(7*2)+(6*2)+(5*1)+(4*8)+(3*0)+(2*1)+(1*9)=74
74 % 10 = 4
So 22180-19-4 is a valid CAS Registry Number.