Documentos clave

Ver Toda la documentación

93659

L-Tryptophan

Name: <SC>L</SC>-Tryptophan
Brand: SIGMA

≥99.5% (NT), BioUltra

Sinónimos:

(S)-2-Amino-3-(3-indolyl)propionic acid, L-α-Amino-3-indolepropionic acid

Iniciar sesión para ver los precios por organización y contrato.

Seleccione un Tamaño

Cambiar Vistas

Acerca de este artículo

Fórmula empírica (notación de Hill):

C₁₁H₁₂N₂O₂

Número CAS:

73-22-3

Peso molecular:

204.23

NACRES:

NA.26

PubChem Substance ID:

57653570

eCl@ss:

32160406

UNSPSC Code:

12352209

EC Number:

200-795-6

MDL number:

MFCD00064340

Beilstein/REAXYS Number:

86197

Servicio técnico

¿Necesita ayuda? Nuestro equipo de científicos experimentados está aquí para ayudarle.

Permítanos ayudarle

Propiedades

Nombre del producto

L-Tryptophan, BioUltra, ≥99.5% (NT)

product line

BioUltra

Quality Segment

100

assay

≥99.5% (NT)

form

powder or crystals

optical activity

[α]20/D −31.5±1°, c = 1% in H₂O

impurities

insoluble matter, passes filter test

ign. residue

≤0.1%

loss

≤0.1% loss on drying, 20 °C (HV)

color

white

mp

280-285 °C (dec.) (lit.)

solubility

0.5 M HCl: 0.1 g/mL at 20 °C, clear, colorless to faintly yellow

anion traces

chloride (Cl^-): ≤50 mg/kg, sulfate (SO₄^2-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, 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, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg

absorption

cut-off at 326 nm in 0.5 M HCl at 0.5 M

application(s)

cell analysis

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

Descripción

Application

L-Tryptophan has been used as a nutritional supplement to study its effect on the circadian clock of primary cell lines. It has also been used as a test amino acid aerosol to study the variation in the fluorescence intensity of thermally-exposed bacterial bioaerosols.

Biochem/physiol Actions

Tryptophan (Trp) is one of the functional amino acids that are associated with growth, reproduction, maintenance and immunity. Increased Trp availability is necessary for the regulation of mood, cognition and behaviour. It is hypothesised that L-Trp might be useful in inducing sleep in healthy adults against the normal circadian rhythm. Trp uptake by the brain depends on the plasma ratio of Trp to all of the other LNAAs (large neutral amino acids). Higher the Trp:LNAAs ratio, greater is the Trp uptake.

Other Notes

Amino acid precursor of serotonin and melatonin

In tryptophan-substituted Sephadex^® and Sepharose^™ for the improved chromatographic separation of cellulases; As spacer in isotachophoresis of serum proteins; Growth requirement of various microorganisms.

Legal Information

Sephadex is a registered trademark of Cytiva

Sepharose is a trademark of Cytiva

Still not finding the right product?

Explore all of our products under L-Tryptophan

Clase de almacenamiento

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c