431995-28-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 431995-28-7 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 5 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 431995-28:
(8*4)+(7*3)+(6*1)+(5*9)+(4*9)+(3*5)+(2*2)+(1*8)=167
167 % 10 = 7
So 431995-28-7 is a valid CAS Registry Number.