19954-97-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19954-97-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,5 and 4 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 19954-97:
(7*1)+(6*9)+(5*9)+(4*5)+(3*4)+(2*9)+(1*7)=163
163 % 10 = 3
So 19954-97-3 is a valid CAS Registry Number.