166976-22-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 166976-22-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,9,7 and 6 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 166976-22:
(8*1)+(7*6)+(6*6)+(5*9)+(4*7)+(3*6)+(2*2)+(1*2)=183
183 % 10 = 3
So 166976-22-3 is a valid CAS Registry Number.