200402-42-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 200402-42-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,4,0 and 2 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 200402-42:
(8*2)+(7*0)+(6*0)+(5*4)+(4*0)+(3*2)+(2*4)+(1*2)=52
52 % 10 = 2
So 200402-42-2 is a valid CAS Registry Number.