40205-81-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40205-81-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,2,0 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 40205-81:
(7*4)+(6*0)+(5*2)+(4*0)+(3*5)+(2*8)+(1*1)=70
70 % 10 = 0
So 40205-81-0 is a valid CAS Registry Number.