313509-24-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 313509-24-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,3,5,0 and 9 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 313509-24:
(8*3)+(7*1)+(6*3)+(5*5)+(4*0)+(3*9)+(2*2)+(1*4)=109
109 % 10 = 9
So 313509-24-9 is a valid CAS Registry Number.