L-tyrosine

A nonessential aromatic amino acid involved in protein synthesis and numerous metabolic pathways. L-Tyrosine is synthesized from phenylalanine by phenylalanine hydroxylase and serves as a precursor for dopamine, norepinephrine, epinephrine, thyroid hormones, and melanin. It is also a substrate for protein tyrosine kinases and is used in nutritional supplements and amino acid formulations. Tyrosine becomes conditionally essential in individuals with impaired phenylalanine metabolism, particularly phenylketonuria

CAS Number: 60-18-4

Molecular Mass: 181.19 g/mol

Formula: C₉H₁₁NO₃

Smiles: N[C@@H](Cc1ccc(O)cc1)C(=O)O

Synonymes:

L-tyrosine, tyrosine, 60-18-4, (S)-Tyrosine, p-Tyrosine, (2S)-2-amino-3-(4-hydroxyphenyl)propanoic acid, L-p-Tyrosine, 4-Hydroxy-L-phenylalanine, tirosina, Tyrosinum, L-Phenylalanine, 4-hydroxy-, beta-(p-Hydroxyphenyl)alanine, (-)-alpha-Amino-p-hydroxyhydrocinnamic acid, FEMA No. 3736, (S)-alpha-Amino-4-hydroxybenzenepropanoic acid, (S)-(-)-Tyrosine, (S)-3-(p-Hydroxyphenyl)alanine, L-Tyrosin, L-Tyr, (S)-2-Amino-3-(p-hydroxyphenyl)propionic acid, DTXSID1023730, 2-Amino-3-(4-hydroxyphenyl)propanoic acid, (S)-, 3-(p-Hydroxyphenyl)alanine, NSC-82624, 42HK56048U, DTXCID603730, CHEBI:17895, 2-Amino-3-(p-hydroxyphenyl)propionic acid, para-tyrosine, l tyrosine, para Tyrosine, TYROSINE, (L), CHEBI:18186, NSC9973, (2S)-2-azaniumyl-3-(4-hydroxyphenyl)propanoate, L-Tyrosine High, Tyrosine, L, L-Tyrosine 7427, RefChem:900817, L-Tyrosine High 7428, (S)-2-amino-3-(4-hydroxy-phenyl)propanoic acid, 200-460-4, H-Tyr-OH, Tyrosine, L-, Tyrosinum [Latin], Tyrosine (VAN), Tirosina [Spanish], L-(-)-Tyrosine, Tyrosine [USAN:INN], L-2-Amino-3-p-hydroxyphenylpropanoic acid, 3-(4-Hydroxyphenyl)-L-alanine, MFCD00002606, tyr, (S)-2-Amino-3-(4-hydroxyphenyl)propanoic acid, HSDB 2003, alpha-Amino-beta-(4-hydroxyphenyl)propionic acid, AI3-09055, Propanoic acid, 2-amino-3-(4-hydroxyphenyl)-, (S)-, NSC 82624, alpha-Amino-p-hydroxyhydrocinnamic acid, (-)-, L-Tyrosine, monomer, alpha-Amino-4-hydroxybenzenepropanoic acid, (S)-, Benzenepropanoic acid, alpha-amino-4-hydroxy-, (S)-, 55520-40-6, NCGC00159350-02, (-)-.alpha.-Amino-p-hydroxyhydrocinnamic acid, L-tyrosine zwitterion, M02963, 25619-78-7, (S)-2-Amino-3-(4-hydroxyphenyl)propionic acid, CAS-60-18-4, L-Tyrosine (9CI), 4ts1, Tyrosine (USP/INN), Levodopa EP Impurity B, EINECS 200-460-4, -tyrosine, plovamer-acetate, Benzenepropanoate, UNII-42HK56048U, Tyrosine CRS, 2csm, (L)-Tyrosine, (-) tyrosine, H-Tyr, L-Tyrosine (Standard), Tyrosine (L-Tyrosine), L-Tyrosine (JP18), TYROSINE [HSDB], TYROSINE [USAN], TYROSINE [INN], TYROSINE [II], TYROSINE [MI], L-TYR-OH, TYROSINE [VANDF], Tyrosine, L- (8CI), .alpha.-Amino-.beta.-(4-hydroxyphenyl)propionic acid, L-TYROSINE [FCC], L-TYROSINE [JAN], Melanin synthesized from Tyr substrate catalyzed by tyrosinase for 6 hrs, TYROSINE [MART.], bmse000051, CHEMBL925, L-TYROSINE [FHFI], TYROSINE [WHO-DD], SCHEMBL1581, L-[U-14C]Tyr, L-Phenylalanine-4-hydroxy-, L-Tyrosine non-animal source, L-TYROSINE [USP-RS], Levodopa impurity, l-tyrosine-, TYROSINE [ORANGE BOOK], GTPL4791, L-Tyrosine, >=97%, FG, orb1310559, SCHEMBL6524247, SCHEMBL6714083, L-Tyrosine - non-animal origin, TYROSINE [EP MONOGRAPH], DD69927C-C6A8-4BC6-8E9A-0AB423B176E7, SCHEMBL11450544, TYROSINE [USP MONOGRAPH], BDBM18129, HY-N0473R, MSK1419, HY-N0473, L-Tyrosine, Vetec(TM), 98.5%, Tox21_111594, (-)-a-Amino-p-hydroxyhydrocinnamate, EBC-04166, s4608, AKOS010400205, IS_4-HYDROXYPHENYL-D4-ALANINE, Tox21_111594_1, (S)-a-Amino-4-hydroxybenzenepropanoate, CS-8013, DB00135, FT16024, (-)-alpha-Amino-p-hydroxyhydrocinnamate, (-)-a-Amino-p-hydroxyhydrocinnamic acid, (S)-3-(4-HYDROXYPHENYL)ALANINE, (S)-a-amino-4-hydroxy-Benzenepropanoate, NCGC00159350-03, NCGC00344525-01, AC-11295, AS-11772, BP-13285, FT158659, LEVODOPA IMPURITY B [EP IMPURITY], (S)-alpha-Amino-4-hydroxybenzenepropanoate, L-Tyrosine, BioUltra, >=99.0% (NT), (S)-2-Amino-3-(p-hydroxyphenyl)propionate, (S)-a-Amino-4-hydroxybenzenepropanoic acid, DB-029987, DB-299342, (S)-a-amino-4-hydroxy-Benzenepropanoic acid, (S)-alpha-amino-4-hydroxy-Benzenepropanoate, L-tyrosine(Discontinued,See C4X-167610), L-Tyrosine, reagent grade, >=98% (HPLC), L-Tyrosine, SAJ special grade, >=99.0%, NS00001880, EN300-52629, C00082, D00022, D70837, L-Tyrosine, Vetec(TM) reagent grade, >=98%, propanoic acid, 2-amino-3-(p-hydroxyphenyl)-, T-9010, (2S)-2-amino-3-(4-hydroxyphenyl)propanoicacid, (S)-alpha-amino-4-hydroxy-Benzenepropanoic acid, L-Tyrosine, Cell Culture Reagent (H-L-Tyr-OH), (S)-.alpha.-Amino-4-hydroxybenzenepropanoic acid, 2-Amino-3-(4-hydroxyphenyl)propanoic acid-(S)-, N-ACETYLTYROSINE IMPURITY A [EP IMPURITY], Q188017, Propanoic acid, 2-amino-3-(4-hydroxyphenyl)-(S)-, LEVODOPA IMPURITY, L-TYROSINE- [USP IMPURITY], Q27115106, Benzenepropanoic acid, .alpha.-amino-4-hydroxy-, (S)-, F8889-8713, L-Tyrosine, certified reference material, TraceCERT(R), Tyrosine, European Pharmacopoeia (EP) Reference Standard, Z756440046, L-Tyrosine, United States Pharmacopeia (USP) Reference Standard, 2-amino-3-(4-hydroxyphen yl)-2-amino-3-(4-hydroxyphenyl)-Propanoate, 2-amino-3-(4-hydroxyphen yl)-2-amino-3-(4-hydroxyphenyl)-Propanoic acid, Levodopa EP Impurity B, Cystine EP Impurity A, N-Acetyltyrosine EP Impurity A, 1189756-47-5, L-Tyrosine, from non-animal source, meets EP, USP testing specifications, suitable for cell culture, >=99.0%

Bioactivity: Proteinogenic amino acid; precursor of catecholamine neurotransmitters, thyroid hormones, and melanin

Solubility in Different Solvents

Solvent	Temperature [K]	Crystal form	Solubility [mg/mL]	Reference
1-Butanol	283.15	-	0.002	[104]
1-Butanol	288.15	-	0.0031	[104]
1-Butanol	293.15	-	0.0034	[104]
1-Butanol	298.15	-	0.0041	[104]
1-Butanol	303.15	-	0.0056	[104]
1-Butanol	308.15	-	0.0062	[104]
1-Butanol	313.15	-	0.0084	[104]
1-Butanol	318.15	-	0.01	[104]
1-Butanol	323.15	-	0.0126	[104]
1-Butanol	328.15	-	0.0157	[104]
1-Propanol	283.15	-	2.0 × 10⁻⁴	[103]
1-Propanol	288.15	-	3.0 × 10⁻⁴	[103]
1-Propanol	293.15	-	4.0 × 10⁻⁴	[103]
1-Propanol	298.15	-	6.0 × 10⁻⁴	[103]
1-Propanol	303.15	-	9.0 × 10⁻⁴	[103]
1-Propanol	308.15	-	0.0012	[103]
1-Propanol	313.15	-	0.0017	[103]
1-Propanol	318.15	-	0.0023	[103]
1-Propanol	323.15	-	0.0031	[103]
Acetonitrile	283.15	-	0.0104	[104]
Acetonitrile	288.15	-	0.0118	[104]
Acetonitrile	293.15	-	0.01561	[104]
Acetonitrile	298.15	-	0.021	[104]
Acetonitrile	303.15	-	0.0263	[104]
Acetonitrile	308.15	-	0.0366	[104]
Acetonitrile	313.15	-	0.0472	[104]
Acetonitrile	318.15	-	0.05593	[104]
Acetonitrile	323.15	-	0.0749	[104]
Acetonitrile	328.15	-	0.0946	[104]
Dimethyl sulfoxide	283.15	-	0.3673	[103]
Dimethyl sulfoxide	288.15	-	0.4087	[103]
Dimethyl sulfoxide	293.15	-	0.45	[103]
Dimethyl sulfoxide	298.15	-	0.4909	[103]
Dimethyl sulfoxide	303.15	-	0.5403	[103]
Dimethyl sulfoxide	308.15	-	0.5897	[103]
Dimethyl sulfoxide	313.15	-	0.6468	[103]
Dimethyl sulfoxide	318.15	-	0.7027	[103]
Dimethyl sulfoxide	323.15	-	0.7651	[103]
Dimethylformamide	283.15	-	1.135	[104]
Dimethylformamide	288.15	-	1.149	[104]
Dimethylformamide	293.15	-	1.229	[104]
Dimethylformamide	298.15	-	1.238	[104]
Dimethylformamide	303.15	-	1.441	[104]
Dimethylformamide	308.15	-	1.494	[104]
Dimethylformamide	313.15	-	1.532	[104]
Dimethylformamide	318.15	-	1.709	[104]
Dimethylformamide	323.15	-	1.75	[104]
Dimethylformamide	328.15	-	1.94	[104]
Ethanol	283.15	-	0.0012	[103]
Ethanol	288.15	-	0.0016	[103]
Ethanol	293.15	-	0.002	[103]
Ethanol	298.15	-	0.0027	[103]
Ethanol	303.15	-	0.0034	[103]
Ethanol	308.15	-	0.0043	[103]
Ethanol	313.15	-	0.0053	[103]
Ethanol	318.15	-	0.0065	[103]
Ethanol	323.15	-	0.0079	[103]
Ethyl acetate	283.15	-	3.868	[104]
Ethyl acetate	288.15	-	4.462	[104]
Ethyl acetate	293.15	-	4.781	[104]
Ethyl acetate	298.15	-	5.259	[104]
Ethyl acetate	303.15	-	6.238	[104]
Ethyl acetate	308.15	-	6.5	[104]
Ethyl acetate	313.15	-	7.127	[104]
Ethyl acetate	318.15	-	8.502	[104]
Ethyl acetate	323.15	-	8.916	[104]
Ethyl acetate	328.15	-	9.877	[104]
Ethylene Glycol	283.15	-	0.1015	[104]
Ethylene Glycol	288.15	-	0.1177	[104]
Ethylene Glycol	293.15	-	0.1582	[104]
Ethylene Glycol	298.15	-	0.2022	[104]
Ethylene Glycol	303.15	-	0.2951	[104]
Ethylene Glycol	308.15	-	0.3628	[104]
Ethylene Glycol	313.15	-	0.4496	[104]
Ethylene Glycol	318.15	-	0.6212	[104]
Ethylene Glycol	323.15	-	0.7631	[104]
Ethylene Glycol	328.15	-	1.032	[104]
Isopropanol	283.15	-	0.0133	[104]
Isopropanol	288.15	-	0.0145	[104]
Isopropanol	293.15	-	0.0213	[104]
Isopropanol	298.15	-	0.0248	[104]
Isopropanol	303.15	-	0.029	[104]
Isopropanol	308.15	-	0.03938	[104]
Isopropanol	313.15	-	0.0455	[104]
Isopropanol	318.15	-	0.05156	[104]
Isopropanol	323.15	-	0.06701	[104]
Isopropanol	328.15	-	0.08082	[104]
Methanol	283.15	-	0.0029	[103]
Methanol	288.15	-	0.0038	[103]
Methanol	293.15	-	0.0049	[103]
Methanol	298.15	-	0.0062	[103]
Methanol	303.15	-	0.008	[103]
Methanol	308.15	-	0.0098	[103]
Methanol	313.15	-	0.0119	[103]
Methanol	318.15	-	0.0143	[103]
Methanol	323.15	-	0.0174	[103]
Water	283.15	-	0.2763	[103]
Water	288.15	-	0.3418	[103]
Water	293.15	-	0.4193	[103]
Water	298.15	-	0.5011	[103]
Water	303.15	-	0.5956	[103]
Water	308.15	-	0.7234	[103]
Water	313.15	-	0.851	[103]
Water	318.15	-	0.998	[103]
Water	323.15	-	1.179	[103]

Molecule 3D descriptors

Descriptor	Value
PMI1	226.0305
PMI2	1469.8250
PMI3	1626.8060
NPR1	0.1389
NPR2	0.9035
RadiusOfGyration	3.0280
InertialShapeFactor	0.0040
Eccentricity	0.9903
Asphericity	0.6402
SpherocityIndex	0.1425
PBF	0.5001