18856-19-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18856-19-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,8,5 and 6 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 18856-19:
(7*1)+(6*8)+(5*8)+(4*5)+(3*6)+(2*1)+(1*9)=144
144 % 10 = 4
So 18856-19-4 is a valid CAS Registry Number.