115767-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 115767-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,5,7,6 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 115767-91:
(8*1)+(7*1)+(6*5)+(5*7)+(4*6)+(3*7)+(2*9)+(1*1)=144
144 % 10 = 4
So 115767-91-4 is a valid CAS Registry Number.