31865-09-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31865-09-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,8,6 and 5 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 31865-09:
(7*3)+(6*1)+(5*8)+(4*6)+(3*5)+(2*0)+(1*9)=115
115 % 10 = 5
So 31865-09-5 is a valid CAS Registry Number.