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T8941

Sigma-Aldrich

L-Tryptophan

99.0-101.0%, suitable for cell culture, BioXtra, non-animal source

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):
C11H12N2O2
CAS Number:
73-22-3
Molecular Weight:
204.23
Beilstein:
86197
EC Number:
200-795-6
MDL number:
MFCD00064340
UNSPSC Code:
12352209
eCl@ss:
32160406
PubChem Substance ID:
24900575
NACRES:
NA.26

product name

L-Tryptophan, from non-animal source, meets EP, JP, USP testing specifications, suitable for cell culture, 99.0-101.0%

biological source

non-animal source

Quality Level

300

Agency

USP/NF
meets EP testing specifications
meets JP testing specifications
meets USP testing specifications

product line

BioXtra

Assay

99.0-101.0%

form

powder

quality

meets EP, JP, USP testing specifications

technique(s)

cell culture | mammalian: suitable

impurities

endotoxin, tested

color

white to yellow

mp

280-285 °C (dec.) (lit.)

solubility

1 M HCl: 10 mg/mL

application(s)

pharmaceutical (small molecule)

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

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Application

L-Tryptophan has been used in PreC media preparation and in cell culture.

Biochem/physiol Actions

Tryptophan (Trp) is one of the functional amino acids that is 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

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Danielle N A Lesperance et al.
Applied and environmental microbiology, 87(1) (2020-10-18)
Drosophila melanogaster gut microbes play important roles in host nutritional physiology. However, these associations are often indirect, and studies typically are in the context of specialized nutritional conditions, making it difficult to discern how microbiome-mediated impacts translate to physiologically relevant
Amino acids: metabolism, functions, and nutrition
Amino Acids (2009)
Nutrient supplements boost yeast
transformation efficiency
Sheng-ChunYu
Scientific Reports (2016)
Preparation of Purified Gram-positive Bacterial Cell Wall and Detection in Placenta and Fetal Tissues
Beth Mann
Bio-protocol, 6(23) (2016)
Effects of tryptophan loading on human cognition, mood, and sleep
B.Y. Silber and J.A.J. Schmitt
Neuroscience and Biobehavioral Reviews, 34(3), 387-407 (2010)
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