NG-Amino-L-arginine . hydrochlorideNOS inhibitor Potent inhibitor of endothelial and inducible nitric oxide synthase (eNOS/NOS III and iNOS/NOS II). Product SpecificationAlternative Name: L-NAA . HCl Formula: C6H15N5O2 . HCl MW: 189.2 . 36.5 CAS: 1031799-40-2 Purity: ≥97% (contains traces of L-ornithine and L-arginine) Appearance: White powder. Solubility: Soluble in water. Long Term Storage: +4°C