19111-42-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19111-42-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,1,1 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 19111-42:
(7*1)+(6*9)+(5*1)+(4*1)+(3*1)+(2*4)+(1*2)=83
83 % 10 = 3
So 19111-42-3 is a valid CAS Registry Number.