66143-74-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66143-74-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,1,4 and 3 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 66143-74:
(7*6)+(6*6)+(5*1)+(4*4)+(3*3)+(2*7)+(1*4)=126
126 % 10 = 6
So 66143-74-6 is a valid CAS Registry Number.