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L-Tryptophan#73-22-3

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Chemical Name：L-Tryptophan

CAS No.:73-22-3

Molecular Formula：C11H12N2O2

Sample: Available

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Product Details

L-Tryptophan#73-22-3

L-tryptophan is the L-enantiomer of tryptophan. It has a role as an antidepressant, a nutraceutical, a micronutrient, a plant metabolite, a human metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite and a mouse metabolite. It is an erythrose 4-phosphate/phosphoenolpyruvate family amino acid, a proteinogenic amino acid, a tryptophan and a L-alpha-amino acid. It is a conjugate base of a L-tryptophanium.

L-Tryptophan#73-22-3

L-Tryptophan Chemical Properties

Melting point	289-290 °C (dec.)(lit.)
alpha	-31.1 º (c=1, H20)
Boiling point	342.72°C (rough estimate)
density	1.34
bulk density	400kg/m3
refractive index	-32 ° (C=1, H2O)
storage temp.	2-8°C
solubility	20% NH3: 0.1 g/mL at 20 °C, clear, colorless
form	powder
pka	2.46(at 25℃)
color	White to yellow-white
PH	5.5-7.0 (10g/l, H2O, 20℃)
Odor	wh. cryst. or cryst. odorless powd., sl. bitter taste
biological source	non-animal source
Optical Rotation	[α]20/D 31.5±1°, c = 1% in H2O
Water Solubility	11.4 g/L (25 ºC)
Merck	14,9797
BRN	86197
Stability:	Stable. Incompatible with strong acids, strong oxidizing agents.
InChIKey	QIVBCDIJIAJPQS-VIFPVBQESA-N
LogP	0.704 (est)
CAS DataBase Reference	73-22-3(CAS DataBase Reference)
NIST Chemistry Reference	L-Tryptophan(73-22-3)
EPA Substance Registry System	L-Tryptophan (73-22-3)
Absorption	cut-off at 326nm in 0.5 M HCl at 0.5M

Safety Information

Hazard Codes	Xi
Risk Statements	33-40-62-41-37/38-36/37/38-22
Safety Statements	24/25-36/37/39-36-26
WGK Germany	2
RTECS	YN6130000
F	8
TSCA	Yes
HS Code	29339990
Hazardous Substances Data	73-22-3(Hazardous Substances Data)
Toxicity	LD508mmol / kg (rat, intraperitoneal injection). It is safe when used in food (FDA, §172.320, 2000).

Product Usage

L-tryptophan is an essential amino acid which is necessary for normal growth in infants and for nitrogen balance in adults. It acts as a natural dietary supplement and used as an antidepressant, anxiolytic and sleep aid. It is used as a precursor to niacin, indole alkaloids and serotonin. It acts as an important intrinsic fluorescent probe, which finds to estimate the nature of microenvironment of the tryptophan.

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