Sigma-Aldrich L-Tryptophan For Biochemistry

Name: Sigma-Aldrich L-Tryptophan For Biochemistry
SKU: SIAL-1083740100
Price: 277.72 USD

List Price $277.72 Your Price $277.72

Sigma-Aldrich L-Tryptophan For Biochemistry; 100 g - SIAL (Additional S&H or Hazmat Fees May Apply)

NETA PART: SIAL-1083740100

MFG.PART: 1083740100

UNSPSC: 12352209

Manufacturer: Sigma-Aldrich

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Description

Quality Level

100

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 %

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c