97172-72-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97172-72-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,1,7 and 2 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 97172-72:
(7*9)+(6*7)+(5*1)+(4*7)+(3*2)+(2*7)+(1*2)=160
160 % 10 = 0
So 97172-72-0 is a valid CAS Registry Number.