31889-92-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31889-92-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,8,8 and 9 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 31889-92:
(7*3)+(6*1)+(5*8)+(4*8)+(3*9)+(2*9)+(1*2)=146
146 % 10 = 6
So 31889-92-6 is a valid CAS Registry Number.