40345-45-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40345-45-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,3,4 and 5 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 40345-45:
(7*4)+(6*0)+(5*3)+(4*4)+(3*5)+(2*4)+(1*5)=87
87 % 10 = 7
So 40345-45-7 is a valid CAS Registry Number.