66670-42-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66670-42-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,6,7 and 0 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 66670-42:
(7*6)+(6*6)+(5*6)+(4*7)+(3*0)+(2*4)+(1*2)=146
146 % 10 = 6
So 66670-42-6 is a valid CAS Registry Number.