31039-95-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31039-95-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,0,3 and 9 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 31039-95:
(7*3)+(6*1)+(5*0)+(4*3)+(3*9)+(2*9)+(1*5)=89
89 % 10 = 9
So 31039-95-9 is a valid CAS Registry Number.