200723-19-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 200723-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,7,2 and 3 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 200723-19:
(8*2)+(7*0)+(6*0)+(5*7)+(4*2)+(3*3)+(2*1)+(1*9)=79
79 % 10 = 9
So 200723-19-9 is a valid CAS Registry Number.