19189-71-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19189-71-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,1,8 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 19189-71:
(7*1)+(6*9)+(5*1)+(4*8)+(3*9)+(2*7)+(1*1)=140
140 % 10 = 0
So 19189-71-0 is a valid CAS Registry Number.