200340-46-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 200340-46-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,3,4 and 0 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 200340-46:
(8*2)+(7*0)+(6*0)+(5*3)+(4*4)+(3*0)+(2*4)+(1*6)=61
61 % 10 = 1
So 200340-46-1 is a valid CAS Registry Number.