1) Cat. No.: TRC-M303822; 2) Chemical Name: 3-O-Methyl-L-DOPA-d3 Methyl Ester; 3) CAS No.: ; 4) Mol. Formula: C11H12D3NO4; 5) Mol. Weight: 228.26; 6) Packing Size: 2.5mg / 25mg; 7) Appearence: Grey Solid; 8) Application Notes: Protected labelled 3-O-Methyl-L-DOPA (M303815). 3-O-Methyl-L-DOPA is the major metabolite of L-DOPA via catechol O-methyltransferase (COMT). 3-Methoxy-L-tyrosine is neither a substrate for nor an inhibitor of L-amino acid decarboxylase activity. Inhibition of COMT enhances the anti-Parkinson activity of L-DOPA.; 9) Synonym: 3-Methoxy-d3-L-tyrosine Methyl Ester; 10) Solubility: Methanol; 11) Storage condition: ; 12) References: Soares-da Silva, P., et al.: Brain Res., 863, 293 (2000), Deleu, D., et al.: Clin. Pharmacokinet., 41, 261 (2002),