1172121-72-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1172121-72-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,2,1,2 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1172121-72:
(9*1)+(8*1)+(7*7)+(6*2)+(5*1)+(4*2)+(3*1)+(2*7)+(1*2)=110
110 % 10 = 0
So 1172121-72-0 is a valid CAS Registry Number.