31004-65-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31004-65-6 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, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 31004-65:
(7*3)+(6*1)+(5*0)+(4*0)+(3*4)+(2*6)+(1*5)=56
56 % 10 = 6
So 31004-65-6 is a valid CAS Registry Number.