Thermo Scientific Chemicals L(-)-Tryptophan, 99%

Catalog No.	Quantity	Packaging
AC140590050	5 g	Glass Bottle
AC140590250	25 g	Plastic Bottle
AC140591000	100 g	Plastic Bottle
AC140595000	500 g	Plastic Bottle
AC140590010	1 kg	Plastic Bottle

Catalog No. AC140590050 Supplier Thermo Scientific Chemicals Supplier No. 140590050

Description

L(-)-Tryptophan, CAS # 73-22-3, is an essential amino acid necessary for the biosynthesis of proteins. | CAS: 73-22-3 | C11H12N2O2 | 204.23 g/mol

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

General Description

• L(-)-Tryptophan is a nonpolar aromatic compound and essential amino acid required for protein synthesis
• It is a biochemical precursor of niacin, indole alkaloids, and serotonin

Applications

• L-Tryptophan acts as a natural dietary supplement and has laboratory applications in the research of antidepressants, anxiolytics, and sleep aids
• It is a precursor of metabolites that are important in the laboratory study of mammalian physiology, including gastrointestinal functions, immunity, metabolism, and the nervous system

Specifications

Chemical Identifiers

• CAS: 73-22-3
• Molecular Formula: C11H12N2O2
• Molecular Weight (g/mol): 204.23
• MDL Number: MFCD00064340
• InChI Key: QIVBCDIJIAJPQS-VIFPVBQESA-N
• Synonym: l-tryptophan, tryptophan, l-tryptophane, s-tryptophan, tryptophane, h-trp-oh, optimax, trofan, tryptacin, ardeytropin
• PubChem CID: 6305
• ChEBI: CHEBI:16828
• IUPAC Name: (2S)-2-amino-3-(1H-indol-3-yl)propanoic acid
• SMILES: N[C@@H](CC1=CNC2=CC=CC=C12)C(O)=O

• Melting Point: 280.0°C to 285.0°C
• Color: White to White-Yellow
• Infrared Spectrum: Authentic
• Loss on Drying: 0.5% max. (1 g, 105°C)
• Assay Percent Range: 99%
• Packaging: Glass Bottle
• Specific Rotation: − 31.10
• Beilstein: 22, 546
• Merck Index: 15, 9977
• Solubility Information: Solubility in water: 11.4g/L (25°C). Other solubilities: soluble in alkali hydroxides and hot alcohol, insoluble in chloroform
• Specific Rotation Condition: − 31.10 (20.00°C c=1,H20)
• Quantity: 5 g
• Formula Weight: 204.23
• Percent Purity: 99%
• Physical Form: Crystalline Powder
• Chemical Name or Material: L(-)-Tryptophan, 99%

Safety and Handling

EINECSNumber	200-795-6
RTECSNumber	YN6130000
TSCA	TSCA

SDS

RUO – Research Use Only