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Home/Compounds/Research Reagent/L-o-tyrosine
C9H11NO3
181.19 g/mol
Research Reagent

(-)-o-Tyrosine

CAS7423-92-9
Category
Research Reagent
Compound Class
Amine
Primary Use
Research Compound

(-)-o-Tyrosine, also known as L-o-tyrosine or 2-hydroxy-L-phenylalanine, is a phenolic amino acid that serves as a human metabolite. It is primarily used as a research reference standard for analytical and laboratory studies.

Research reference standardHuman metabolite study

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Triptophenolide

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Referencestereoisomer of

DL-ortho-tyrosine

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Referencestereoisomer of

D-2-Hydroxyphenylalanine

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pharmaceutical intermediate

Customs Tariff Classification

The international HS code for (-)-o-Tyrosine (CAS 7423-92-9) is 2922.50.

HS code (international, 6-digit)

2922.50

EU CN code (8-digit)

2922 50 00

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers
IUPAC Name

(2S)-2-amino-3-(2-hydroxyphenyl)propanoic acid

InChIKey

WRFPVMFCRNYQNR-ZETCQYMHSA-N

SMILES

C1=CC=C(C(=C1)C[C@@H](C(=O)O)N)O

Synonyms (16)
  • L-O-TYR
  • (-)-o-Tyrosine
  • 2-Hydroxy-L-Phenylalanine
  • L-2-HYDROXYPHENYLALANINE
  • L-2-Tyr
  • L-2-tyrosine
  • L-3-(2-Hydroxyphenyl)alanine
  • L-3-(o-hydroxyphenyl)alanine
  • L-o-Tyrosine
  • L-ortho-tyrosine
  • O-tyr
  • Phenylalanine, 2-hydroxy-
  • o-Hydroxyphenylalanin

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