99167-54-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99167-54-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,1,6 and 7 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 99167-54:
(7*9)+(6*9)+(5*1)+(4*6)+(3*7)+(2*5)+(1*4)=181
181 % 10 = 1
So 99167-54-1 is a valid CAS Registry Number.