40800-85-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40800-85-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,8,0 and 0 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 40800-85:
(7*4)+(6*0)+(5*8)+(4*0)+(3*0)+(2*8)+(1*5)=89
89 % 10 = 9
So 40800-85-9 is a valid CAS Registry Number.