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N-Acetyl-L-tyrosine

CAS No.
537-55-3
Chemical Name:
N-Acetyl-L-tyrosine
Synonyms
AC-TYR-OH;N-Acetyltyrosine;ACETYL-L-TYROSINE;ACETYLTYROSINE;N-ACEYL-L-TYROSINE;n-acetyl-l-tyrosin;N-Acetyl-Thiazolidine-4-carboxylic acid amino acid;N-Ac-Tyr;-tyrosine;N-AC-L-TYR
CBNumber:
CB6678139
Molecular Formula:
C11H13NO4
Molecular Weight:
223.23
MDL Number:
MFCD00037190
MOL File:
537-55-3.mol
MSDS File:
SDS
Last updated:2026-04-22 18:57:36
Product description Number Pack Size Price
N-Acetyl-L-tyrosine Pharmaceutical Secondary Standard; Certified Reference Material PHR1173 1g $114
N-Acetyltyrosine European Pharmacopoeia (EP) Reference Standard A0202000 200 mg $175
N-Acetyl-L-tyrosine United States Pharmacopeia (USP) Reference Standard 1010106 100mg $413
N-Acetyl-L-tyrosine >99.0%(T) A1409 25g $40
N-Acetyl-L-tyrosine ≥98.5% T4446 100g $345
More product size

N-Acetyl-L-tyrosine Properties

Melting point 149-152 °C(lit.)
alpha 47.5 º (c=2, water)
Boiling point 364.51°C (rough estimate)
Density 1.2446 (rough estimate)
refractive index 1.4960 (estimate)
storage temp. Sealed in dry,Room Temperature
solubility H2O: soluble25mg/mL
pka 3.15±0.10(Predicted)
form Crystalline
color White to Off-White
Water Solubility Soluble in water (25 mg/ml), and ethanol.
BRN 2697172
Stability Stable. Incompatible with strong oxidizing agents.
Major Application pharmaceutical (small molecule)
Cosmetics Ingredients Functions SKIN CONDITIONING
TANNING
Cosmetic Ingredient Review (CIR) N-Acetyl-L-tyrosine (537-55-3)
InChI 1S/C11H13NO4/c1-7(13)12-10(11(15)16)6-8-2-4-9(14)5-3-8/h2-5,10,14H,6H2,1H3,(H,12,13)(H,15,16)/t10-/m0/s1
InChIKey CAHKINHBCWCHCF-JTQLQIEISA-N
SMILES CC(=O)N[C@@H](Cc1ccc(O)cc1)C(O)=O
LogP 1.320
CAS DataBase Reference 537-55-3(CAS DataBase Reference)
FDA UNII DA8G610ZO5
NIST Chemistry Reference N-acetyl-Tyr(537-55-3)
EPA Substance Registry System N-Acetyl-L-tyrosine (537-55-3)
UNSPSC Code 41116107
NACRES NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS05
Signal word  Danger
Hazard statements  H318
Precautionary statements  P280i-P310a-P280-P305+P351+P338+P310-P305+P351+P338
Hazard Codes  Xi
Risk Statements  41-36/37/38
Safety Statements  26-39-36
WGK Germany  3
10
TSCA  TSCA listed
HS Code  29242995
Storage Class 11 - Combustible Solids
NFPA 704
1
2 0

N-Acetyl-L-tyrosine price More Price(39)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich PHR1173 N-Acetyl-L-tyrosine Pharmaceutical Secondary Standard; Certified Reference Material 537-55-3 1g $114 2026-03-19 Buy
Sigma-Aldrich A0202000 N-Acetyltyrosine European Pharmacopoeia (EP) Reference Standard 537-55-3 200 mg $175 2026-03-19 Buy
Sigma-Aldrich 1010106 N-Acetyl-L-tyrosine United States Pharmacopeia (USP) Reference Standard 537-55-3 100mg $413 2026-03-19 Buy
TCI Chemical A1409 N-Acetyl-L-tyrosine >99.0%(T) 537-55-3 25g $40 2023-06-20 Buy
Sigma-Aldrich T4446 N-Acetyl-L-tyrosine ≥98.5% 537-55-3 100g $345 2024-03-01 Buy
Product number Packaging Price Buy
PHR1173 1g $114 Buy
A0202000 200 mg $175 Buy
1010106 100mg $413 Buy
A1409 25g $40 Buy
T4446 100g $345 Buy

N-Acetyl-L-tyrosine Chemical Properties,Uses,Production

Chemical Properties

N-Acetyl-L-Tyrosine is a white crystalline powder that is an acetyl derivative of the amino acid, L-tyrosine. It is freely soluble in water compared to L-tyrosine and is commonly used as a parenteral nutrition supplement. N-Acetyl-L-tyrosine , a stable and more soluble form of tyrosine , has been incorporated in some currently available commercial parenteral amino acid formulations such as TrophAmine and Aminosyn-II.

Uses

N-Acetyl-L-tyrosine is involved in catecholamine production. It can be used as a cell culture media component in the commercial biomanufacture of therapeutic recombinant proteins and monoclonal antibodies.

Definition

ChEBI: N-acetyl-L-tyrosine is an N-acetyltyrosine in which the chiral centre has L configuration. It has a role as an EC 2.1.1.4 (acetylserotonin O-methyltransferase) inhibitor, a biomarker and a human urinary metabolite. It is a N-acyl-L-tyrosine and a N-acetyltyrosine. It is a conjugate acid of a N-acetyl-L-tyrosinate.

Application

N-Acetyl-L-tyrosine is a tyrosine derivative with a chemical structure similar to that of an amino acid. It is used as a model system in biochemistry and molecular biology to study the transfer reactions of tyrosine, which are important for energy metabolism, protein synthesis, and metal chelation. N-acetyl-L-tyrosine may be used as an indicator to distinguish neurosyphilis patients from syphilis/non-neurosyphilis patients. N-acetyl-L-tyrosine is a precursor of the essential neurotransmitter dopamine.

benefits

N-Acetyl-L-Tyrosine (NALT) plays a necessary part in the synthesis of dopamine and other hormones in your body. It can boost levels of the neurotransmitters dopamine, norepinephrine and epinephrine. It helps to support higher levels of focus and cognitive function. It can increase working memory and feelings of well-being.

Side effects

L-tyrosine gets the generally regarded as safe (GRAS) stamp of approval from the FDA. Some side effects of N-Acetyl-L-tyrosine (NALT) include nausea, headache, fatigue, and heartburn. It can be safely taken for extended periods of time.

108-24-7
60-18-4
6393-42-6
Synthesis of N-Acetyl-L-tyrosine from Acetic anhydride and L-Tyrosine
Global( 714)Suppliers
Supplier Tel Email Country ProdList Advantage
DONBOO AMINO ACID COMPANY
+8618051385538 donboo@donboo.com China 9363 58
Hebei Chuanghai Biotechnology Co., Ltd
+8615350571055 Sibel@chuanghaibio.com China 8738 58
Hebei Yanxi Chemical Co., Ltd.
+8618531123677 faithe@yan-xi.com China 5853 58
Wuhan Fortuna Chemical Co., Ltd
+86-27-59207850 info@fortunachem.com China 5975 58
Hebei Chuanghai Biotechnology Co,.LTD
+86-86-13131129325 +8613131129325 sales1@chuanghaibio.com China 5235 58
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Sichuan HongRi Pharma-Tech Co.,Ltd
+8618382028708 ni@enlaibio.com China 1098 58
airuikechemical co., ltd.
+86-18353166132 sales02@airuikechemical.com China 983 58
Hebei Zhuanglai Chemical Trading Co.,Ltd
+8613343047651 admin@zlchemi.com China 3692 58
Shandong Deshang Chemical Co., Ltd.
+86-0531-8875-2665 +8613153039501 info@deshangchem.com China 661 58

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View Lastest Price from N-Acetyl-L-tyrosine manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
N-Acetyl-L-tyrosine pictures 2026-04-23 N-Acetyl-L-tyrosine
537-55-3
0.99 RongNa Biotechnology Co.,Ltd
AC-L-Tyr-OH pictures 2026-04-23 AC-L-Tyr-OH
537-55-3
US $0.00-0.00 / kg 1kg 98% 1T+ Sichuan HongRi Pharma-Tech Co.,Ltd
N-Acetyl-L-tyrosine pictures 2026-04-23 N-Acetyl-L-tyrosine
537-55-3
US $1.00 / KG 1KG 99% 10ton/month WUHAN FORTUNA CHEMICAL CO., LTD
  • AC-L-Tyr-OH pictures
  • AC-L-Tyr-OH
    537-55-3
  • US $0.00-0.00 / kg
  • 98%
  • Sichuan HongRi Pharma-Tech Co.,Ltd
L-TYROSINE, N-ACETYL- N-Acetyl-L-tryosine ACETYLTYROSINE AC-TYROSINE N-AC-L-TYR N-ACETYL-L-TYROSINE N-ACEYL-L-TYROSINE N-ALPHA-ACETYL-L-TYROSINE ACETYL-L-TYROSINE, N-(P) ACETYL-L-TYROSINE, N-(RG) N-Ac-Tyr N-Acetyl-L-Tyrosine AJI92 2-acetylamino-3-(4-hydroxyphenyl)-propanoic acid N-ACETYL-L-TYROSINE extrapure for biochemistry N-Acetyl-L-tyrosine ,98% (2S)-2-acetamido-3-(4-hydroxyphenyl)propanoic acid (2S)-2-acetamido-3-(4-hydroxyphenyl)propanoate N-Acetyl-L-tyrosine in stock GMP Factory N-Acetyl-L-Tyrosine (100 mg) A-L-Tyr-OH N-Acetyl-L-Tyrosine AMino acid (S)-2-acetaMido-3-(4-hydroxyphenyl)propanoic acid N-Acetyl-L-Tyrosine EP N-Acetyl-L-tyrosine, >=99% N-Ac-L-Tyr-OH Acetyl-L-tyrosine≥ 99% (Titration) Ac-L-Tyr-OH n-acetyl-l-tyrosin Tyrosine, N-acetyl-, L- N-Acetyl-L-tyrosine > N-Acetyltyrosine CRS -tyrosine N-Acetyl-L-tyrosine USP/EP/BP N-Acetyl-L-Typerosine acetyl-laevo-tyrosine N-Acetyl-Thiazolidine-4-carboxylic acid amino acid N-Acetyl-L-Tyrosine extrapure, 98% N-Acetyl-L-Tyrosine (1010106) N-Acetyltyrosine (N-Acetyl-L-Tyrosine) N-Acetyl-L-Tyrosine/Ac-Tyr-OH L.?1-(1H-indol-3-ylmethyl)-1,2,3,4-tetrahydro-9H-β-carboline-3-carboxylicacid. N-Acetyl-L-tyrosine, ≥ 99.0% N-Acetyltyrosine N-Acetyl-L-tyrosine N-Acetyl-L-Tyrosine/Vegan N-Acyl-L-tyrosine D3-N-Acetyl-L-4-hydroxyphenylalanine ACETYL-L-TYROSINE AC-TYR-OH N-Acetyltyrosine ACETYL-L-TYROSINE, N- 537-55-3 C11H12NO4 4HOC6H4CH2CHNHCOCH3CO2H C11H13N04 CARBOXYLIC ACID amino Amino Acid