431924-97-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 431924-97-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,1,9,2 and 4 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 431924-97:
(8*4)+(7*3)+(6*1)+(5*9)+(4*2)+(3*4)+(2*9)+(1*7)=149
149 % 10 = 9
So 431924-97-9 is a valid CAS Registry Number.