146667-81-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 146667-81-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,6,6,6 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 146667-81:
(8*1)+(7*4)+(6*6)+(5*6)+(4*6)+(3*7)+(2*8)+(1*1)=164
164 % 10 = 4
So 146667-81-4 is a valid CAS Registry Number.