31430-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31430-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,4,3 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 31430-72:
(7*3)+(6*1)+(5*4)+(4*3)+(3*0)+(2*7)+(1*2)=75
75 % 10 = 5
So 31430-72-5 is a valid CAS Registry Number.