L-Tyrosine

CAS Registry Number®

60-18-4

CAS Name

L-Tyrosine

Molecular Formula

C9H11NO3

Molecular Mass

181.19

Cite this Page

L-Tyrosine.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=60-18-4 (retrieved 2025-05-12) (CAS RN: 60-18-4).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    344 °C

  • Density (2)

    0.01600 mol/L

Source(s)

Other Names and Identifiers

InChI

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

InChIKey

InChIKey=OUYCCCASQSFEME-QMMMGPOBSA-N

SMILES

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

Canonical SMILES

O=C(O)C(N)CC1=CC=C(O)C=C1

Other Names for this Substance

  • L-Tyrosine
  • Tyrosine, L-
  • (-)-α-Amino-p-hydroxyhydrocinnamic acid
  • L(-)-β-(p-Hydroxyphenyl)alanine
  • L-(-)-Tyrosine

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Deleted or Replaced CAS Registry Numbers

140-43-2, 1991-85-1, 46209-14-7, 55520-40-6, 1207451-88-4, 2416148-26-8

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