1705006

L-Tyrosine

United States Pharmacopeia (USP) Reference Standard

• Synonym(s): (S)-2-Amino-3-(4-hydroxyphenyl)propionic acid, 3-(4-Hydroxyphenyl)-L-alanine
• Linear Formula: 4-(HO)C₆H₄CH₂CH(NH₂)CO₂H
• CAS Number: 60-18-4
• Molecular Weight: 181.19
• UNSPSC Code: 41116107
• NACRES: NA.24
• PubChem Substance ID: 329751451
• MDL number: MFCD00002606
• Beilstein/REAXYS Number: 392441
• eCl@ss: 25140904

Properties

• grade: pharmaceutical primary standard
• agency: USP
• API family: tyrosine
• form: fine crystals
• manufacturer/tradename: USP
• mp: >300 °C (dec.) (lit.)
• application(s): pharmaceutical (small molecule); pharmaceutical
• format: neat
• SMILES string: N[C@@H](Cc1ccc(O)cc1)C(O)=O
• InChI: 1S/C9H11NO3/c10-8(9(12)13)5-6-1-3-7(11)4-2-6/h1-4,8,11H,5,10H2,(H,12,13)/t8-/m0/s1
• InChI key: OUYCCCASQSFEME-QMMMGPOBSA-N

Description

General description

Find answers to frequently asked questions on USP products in USP FAQs.

ʟ-Tyrosine is a non-essential amino acid involved in the biosynthesis of catecholamines, thyroid hormones, and melanin. The USP ʟ-Tyrosine standard guarantees the purity and quality of this amino acid, supporting its use in peptide synthesis, cell culture media, and therapeutic development.

The United States Pharmacopeia (USP) provides quality standards for biologics to ensure their safety, efficacy, and quality throughout the manufacturing process. These standards assist manufacturers in adhering to regulatory requirements and help safeguard public health by reducing risks associated with biologics.

Application

ʟ-Tyrosine USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:

• Tyrosine
• Glycyl-l-tyrosine
• Levodopa
• N-Acetyltyrosine
• Hyaluronidase Injection

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Amino acid precursor of dopamine and other catecholamines

Sales restrictions may apply.

This product is part of USP Biologics Program.

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Safety Information

• Storage Class: 11 - Combustible Solids
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable