431996-80-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 431996-80-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,1,9,9 and 6 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 431996-80:
(8*4)+(7*3)+(6*1)+(5*9)+(4*9)+(3*6)+(2*8)+(1*0)=174
174 % 10 = 4
So 431996-80-4 is a valid CAS Registry Number.