31004-44-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31004-44-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,0,0 and 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 31004-44:
(7*3)+(6*1)+(5*0)+(4*0)+(3*4)+(2*4)+(1*4)=51
51 % 10 = 1
So 31004-44-1 is a valid CAS Registry Number.