311331-32-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 311331-32-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,1,3,3 and 1 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 311331-32:
(8*3)+(7*1)+(6*1)+(5*3)+(4*3)+(3*1)+(2*3)+(1*2)=75
75 % 10 = 5
So 311331-32-5 is a valid CAS Registry Number.