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L-Tryptophan

Name: L-Tryptophan
SKU: 0

CAS No.: 73-22-3
Molecular Formula: C11H12N2O2
Molecular Weight: 204.23

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product description

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.

Chemical Properties

Property	Value
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

Property	Value
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 and a vital precursor to serotonin and melatonin, making it indispensable in the nutraceutical and pharmaceutical industries. Its primary application is in dietary supplements designed to improve sleep quality, regulate mood, and alleviate anxiety. In infant nutrition, it is a mandatory additive in formulas to ensure healthy neurological development and sleep-wake cycles. The animal feed industry also utilizes L-Tryptophan extensively as a growth promoter and stress-reducer for livestock and aquaculture, enhancing feed efficiency. Furthermore, it serves as a high-value chemical intermediate in the synthesis of specialized drugs and biochemical reagents. In cosmetics, it is occasionally used in anti-aging formulations for its potential antioxidant properties and role in skin repair.

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Delivery Time

Inventory 2-3 working days New manufacturing 7-10 working days

Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
We only provide highest quality goods available, accompanied by after support!

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FAQ

Q1: What international standards do your products and services comply with?

A1: Our products fully comply with international standards such as REACH, MSDS, and COA, and we strictly implement the ISO9001 quality management system. We can also provide third-party testing reports (SGS, BV, etc.) according to customer needs.

Q2: How long does it take for goods to be delivered to my country?
A2: The delivery time depends on the transport mode and destination country. Generally, sea transport takes 15-30 days, air transport takes 3-7 days, and we will optimize the transport route to shorten the delivery time as much as possible.

Can you provide customs clearance services for dangerous chemicals?
A3: Yes. Our team is proficient in the customs clearance procedures for dangerous chemicals in various countries, and can provide professional compliant declaration and customs clearance services to ensure smooth customs clearance.

Q4: Do you provide customized product and service solutions?
A4: Yes. We can provide personalized product customization and export service solutions according to your specific needs (product specifications, application scenarios, procurement volume, etc.).

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