1-Methyl-L-tryptophanIDO inhibitorCompetitive inhibitor of indoleamine 2,3-dioxygenase (IDO). Product SpecificationFormula: C12H14N2O2 MW: 218.3 CAS: 21339-55-9 RTECS: YN7135000 Purity: ≥95% Identity: Identity determined by IR. Appearance: White to off-white powder. Solubility: Slightly soluble in water. Long Term Storage: Ambient