3178-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3178-31-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,1,7 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 3178-31:
(6*3)+(5*1)+(4*7)+(3*8)+(2*3)+(1*1)=82
82 % 10 = 2
So 3178-31-2 is a valid CAS Registry Number.