91966-67-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91966-67-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,6 and 6 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 91966-67:
(7*9)+(6*1)+(5*9)+(4*6)+(3*6)+(2*6)+(1*7)=175
175 % 10 = 5
So 91966-67-5 is a valid CAS Registry Number.