93660

L-Tryptophan

≥99.0% (NT)

• Synonym(s): (S)-2-Amino-3-(3-indolyl)propionic acid, L-α-Amino-3-indolepropionic acid
• Empirical Formula (Hill Notation): C₁₁H₁₂N₂O₂
• CAS Number: 73-22-3
• Molecular Weight: 204.23
• Beilstein/REAXYS Number: 86197
• EC Number: 200-795-6
• MDL number: MFCD00064340
• UNSPSC Code: 12352209

Properties

• assay: ≥99.0% (NT)
• optical activity: [α]20/D −31.5±1°, c = 1% in H₂O
• ign. residue: ≤0.1% (as SO₄)
• loss: ≤0.1% loss on drying, 110 °C
• mp: 280-285 °C (dec.) (lit.)
• anion traces: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• cation traces: Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤50 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Na: ≤100 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg
• SMILES string: N[C@@H](Cc1c[nH]c2ccccc12)C(O)=O
• InChI: 1S/C11H12N2O2/c12-9(11(14)15)5-7-6-13-10-4-2-1-3-8(7)10/h1-4,6,9,13H,5,12H2,(H,14,15)/t9-/m0/s1
• InChI key: QIVBCDIJIAJPQS-VIFPVBQESA-N

Description

Other Notes

Amino acid precursor of serotonin and melatonin

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)