166829-91-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 166829-91-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,8,2 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 166829-91:
(8*1)+(7*6)+(6*6)+(5*8)+(4*2)+(3*9)+(2*9)+(1*1)=180
180 % 10 = 0
So 166829-91-0 is a valid CAS Registry Number.