1.08374

L-Tryptophan

for biochemistry

• Synonyme(s) : L-Tryptophan, Trp
• Formule empirique (notation de Hill): C₁₁H₁₂N₂O₂
• Numéro CAS: 73-22-3
• Poids moléculaire : 204.23
• Numéro MDL: MFCD00064340
• Code UNSPSC : 12352209
• Numéro de classement CE : 200-795-6
• Nomenclature NACRES : NA.21

Propriétés

• Niveau de qualité: 100
• Forme: solid
• Puissance: 16000 mg/kg LD₅₀, oral (Rat)
• pH: 5.5-7.0 (20 °C, 10 g/L in H₂O)
• Pf: 290 °C (decomposition)
• Solubilité: 10 g/L
• Masse volumique apparente: 400 kg/m³
• Température de stockage: 2-30°C
• 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)
• Clé InChI: QIVBCDIJIAJPQS-UHFFFAOYSA-N

Description

Application

• Biotechnological production of L-Tryptophan: The study by Nefedova et al. explores the molecular mechanisms in metal oxide nanoparticle interactions with L-Tryptophan, highlighting its significance in nanoparticle synthesis, which is crucial for biotechnological applications in pharmaceutical manufacturing and life sciences (Nefedova et al., 2024).

Remarque sur l'analyse

Assay (perchloric acid titration, calculated on dried substance): 99.0 - 101.0 %
Identity (IR-spectrum): passes test
Identity (specific rotation): passes test
Spec. rotation (α 20/D, 10 g/l, water, calc. on dried substance): -30.0 to -33.0
Appearance: white to almost white, crystalline or amorphous powder
Appearance of solution (10 g/l, Hydrochloric acid 1 mol/l): clear and colorless
Chloride (Cl): ≤ 200 ppm
Sulfate (SO₄): ≤ 300 ppm
Fe (Iron): ≤ 20 ppm
Ninhydrin-positive substances (LC)(any ninhydrin-positive impurity): ≤ 0.2 %
Ninhydrin-positive substances (LC) (ammonium (570 nm)): ≤ 0.02 %
Ninhydrin-positive substances (LC)(total impurities): ≤ 0.5 %
Loss on drying (105 °C; 3 h): ≤ 0.3 %

Informations sur la sécurité

• Code de la classe de stockage: 13 - Non Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable