1.08374
L-Tryptophan
for biochemistry
Synonym(s):
L-Tryptophan, Trp
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About This Item
Empirical Formula (Hill Notation):
C11H12N2O2
CAS Number:
Molecular Weight:
204.23
UNSPSC Code:
12352209
EC Index Number:
200-795-6
NACRES:
NA.21
MDL number:
Quality Level
form
solid
potency
16000 mg/kg LD50, oral (Rat)
pH
5.5-7.0 (20 °C, 10 g/L in H2O)
mp
290 °C (decomposition)
solubility
10 g/L
bulk density
400 kg/m3
storage temp.
2-30°C
SMILES string
[nH]1c2c(c(c1)CC(N)C(=O)O)cccc2
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)
InChI key
QIVBCDIJIAJPQS-UHFFFAOYSA-N
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).
Analysis Note
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 -32.5
Appearance: white to almost white, crystalline or amorphous powder
Appearance of solution (10 g/l, Hydrochloric acid 1 mol/l): clear and not more intense in color than reference solution BY6
Chloride (Cl): ≤ 200 ppm
Sulfate (SO₄): ≤ 200 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): ≤ 0.2 %
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 -32.5
Appearance: white to almost white, crystalline or amorphous powder
Appearance of solution (10 g/l, Hydrochloric acid 1 mol/l): clear and not more intense in color than reference solution BY6
Chloride (Cl): ≤ 200 ppm
Sulfate (SO₄): ≤ 200 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): ≤ 0.2 %
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Storage Class
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 1083740100 | 04022536103549 |
| 1083740500 | 04022536103556 |
| 1083749010 | 04022536692838 |
| 1083740010 | 04022536103532 |