19172-44-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19172-44-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,1,7 and 2 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 19172-44:
(7*1)+(6*9)+(5*1)+(4*7)+(3*2)+(2*4)+(1*4)=112
112 % 10 = 2
So 19172-44-2 is a valid CAS Registry Number.