40003-30-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40003-30-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,0,0 and 3 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 40003-30:
(7*4)+(6*0)+(5*0)+(4*0)+(3*3)+(2*3)+(1*0)=43
43 % 10 = 3
So 40003-30-3 is a valid CAS Registry Number.