1172415-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1172415-72-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,2,4,1 and 5 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1172415-72:
(9*1)+(8*1)+(7*7)+(6*2)+(5*4)+(4*1)+(3*5)+(2*7)+(1*2)=133
133 % 10 = 3
So 1172415-72-3 is a valid CAS Registry Number.