31884-78-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31884-78-3 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 4 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 31884-78:
(7*3)+(6*1)+(5*8)+(4*8)+(3*4)+(2*7)+(1*8)=133
133 % 10 = 3
So 31884-78-3 is a valid CAS Registry Number.