1171917-94-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1171917-94-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,1,9,1 and 7 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1171917-94:
(9*1)+(8*1)+(7*7)+(6*1)+(5*9)+(4*1)+(3*7)+(2*9)+(1*4)=164
164 % 10 = 4
So 1171917-94-4 is a valid CAS Registry Number.