A conditionally essential amino acid
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Isomer(s)
33570DL-o-Tyrosine 36460DL-Tyrosine
Labeled Version(s)
31256L-Tyrosine-13C9,15N
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L-Tyrosine (sodium salt hydrate)

Item No. 36333

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
L-tyrosine, sodium salt, dihydrate
Synonyms
  • L-4-Hydroxyphenylalanine
  • p-Hydroxyphenylalanine
  • (–)-Tyrosine
  • p-Tyrosine
Molecular Formula
C9H11NO3 • XNa [2H2O]
Formula Weight
181.2
Purity
≥98%
Formulation (Request formulation change)
A solid
Solubility(Learn about Variance in Solubility)
PBS (pH 7.2): 10 mg/ml
λmax
227 nm
SMILES
OC([C@@H](N)CC1=CC=C(C=C1)O)=O.O.O.[Na]
InChi Code
InChI=1S/C9H11NO3.Na.2H2O/c10-8(9(12)13)5-6-1-3-7(11)4-2-6;;;/h1-4,8,11H,5,10H2,(H,12,13);;2*1H2/t8-;;;/m0.../s1
InChi Key
MIZRPQUACHYPLM-CZDIJEQGSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    25 g

    $38

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    50 g

    $72

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    100 g

    $120

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    250 g

    $279

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    Product Description

    L-Tyrosine is a conditionally essential amino acid.1 It is produced by hydroxylation of phenylalanine by phenylalanine hydroxylase but can also be obtained from dietary sources or degradation of endogenous proteins, resulting in L-tyrosine release.1,2 L-Tyrosine is a precursor in the biosynthesis of catecholamine neurotransmitters, melanins, and thyroid hormones.3 Plasma, skeletal muscle, and erythrocyte levels of L-tyrosine are decreased in patients with chronic kidney disease.1

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Kopple, J.D. Phenylalanine and tyrosine metabolism in chronic kidney failure. J. Nutr. 137(6 Suppl 1), 1586S-1590S (2007).

    2. Webster, D., and Wildgoose, J. Tyrosine supplementation for phenylketonuria. Cochrane DB Syst. Rev. 6, CD001507 (2013).

    3. Slominski, A., and Paus, R. Towards defining receptors for L-tyrosine and L-DOPA. Mol. Cell Endocrinol. 99(2), C7-C11 (1994).