1171129-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1171129-17-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,1,1,2 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1171129-17:
(9*1)+(8*1)+(7*7)+(6*1)+(5*1)+(4*2)+(3*9)+(2*1)+(1*7)=121
121 % 10 = 1
So 1171129-17-1 is a valid CAS Registry Number.