D-CycloserineNMDA receptor agonistExcitatory amino acid. Partial agonist at the glycine modulatory site of the NMDA receptor. Product SpecificationAlternative Name: R(+)-4-Amino-3-isoxazolidinone Formula: C3H6N2O2 MW: 102.1 Source: Synthetic. CAS: 68-41-7 RTECS: NY2975000 Purity: ≥97% Appearance: White to off-white solid. Solubility: Soluble in water. Long Term Storage: +4°C Handling: Hygroscopic.