31183-24-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31183-24-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,1,8 and 3 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 31183-24:
(7*3)+(6*1)+(5*1)+(4*8)+(3*3)+(2*2)+(1*4)=81
81 % 10 = 1
So 31183-24-1 is a valid CAS Registry Number.