192720-66-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 192720-66-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,2,7,2 and 0 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 192720-66:
(8*1)+(7*9)+(6*2)+(5*7)+(4*2)+(3*0)+(2*6)+(1*6)=144
144 % 10 = 4
So 192720-66-4 is a valid CAS Registry Number.