... . Product Name GabapentinChemical Name Neurontin; 1-(Aminomethyl)cyclohexaneacetic acidCAS Number 60142-96-3Molecular Formula C9H17NO2.HCl;C9H18ClNO2Molecular Weight 207.70Storage Store ... ≤ 0.5%Assay98.0 ~ 102.0%StandardUSP34 Gabapentin hydrochloride (Cas 60142-96-3) pharmaceutical