20458-66-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20458-66-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,4,5 and 8 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 20458-66:
(7*2)+(6*0)+(5*4)+(4*5)+(3*8)+(2*6)+(1*6)=96
96 % 10 = 6
So 20458-66-6 is a valid CAS Registry Number.