42945-29-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42945-29-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,9,4 and 5 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 42945-29:
(7*4)+(6*2)+(5*9)+(4*4)+(3*5)+(2*2)+(1*9)=129
129 % 10 = 9
So 42945-29-9 is a valid CAS Registry Number.