31582-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31582-89-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,5,8 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 31582-89:
(7*3)+(6*1)+(5*5)+(4*8)+(3*2)+(2*8)+(1*9)=115
115 % 10 = 5
So 31582-89-5 is a valid CAS Registry Number.