40129-19-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40129-19-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,1,2 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 40129-19:
(7*4)+(6*0)+(5*1)+(4*2)+(3*9)+(2*1)+(1*9)=79
79 % 10 = 9
So 40129-19-9 is a valid CAS Registry Number.