89166-38-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89166-38-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,1,6 and 6 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 89166-38:
(7*8)+(6*9)+(5*1)+(4*6)+(3*6)+(2*3)+(1*8)=171
171 % 10 = 1
So 89166-38-1 is a valid CAS Registry Number.