313389-43-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 313389-43-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,3,3,8 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 313389-43:
(8*3)+(7*1)+(6*3)+(5*3)+(4*8)+(3*9)+(2*4)+(1*3)=134
134 % 10 = 4
So 313389-43-4 is a valid CAS Registry Number.