N-Acetyl-L-Tyrosine, Ac-Tyr-OH, AJI92

Weight: 1 pound (454g)
Sale price$78.00


N-Acetyl-L-Tyrosine (Ac-Tyr-OH), an essential amino acid derivative, signifies tyrosine bonded with an acetyl group, embodying a fundamental component within the amino acid spectrum. With a CAS Number of 537-55-3 and an EC Number of 208-671-3, this compound boasts a chemical formula of C11H13NO4 and a molecular weight of 223.23, adhering to the AJI92 standard. The unique bond with the acetyl group sets N-Acetyl L-Tyrosine apart from its counterpart L-Tyrosine, showcasing distinct yet interconnected forms of the same compound. Its solubility in water and ethanol, along with a melting point range of 150-151°C, highlights its diverse properties and potential applications.

CAS Number: 537-55-3
EC Number: 208-671-3
Chemical Formula: C11H13NO4
Molecular Weight: 223.23
Standard: AJI92
Melting point: 150-151°C
Solubility: Soluble in water and ethanol.
Synonyms: Ac-Tyr-OH



White crystals or crystalline powder

Melting point:

150.0 ~ 151.0 °C

Specific rotation [a]D20°

+46.5o ~ +49.0o


97.5% to 102.5%

State of solution:

Clear and colorless


96.0% min.


2.0 ~ 3.0

Sulfate (SO4):

0.02% max.

Ammonium (NH4):

0.02% max.

Chloride (Cl):

0.02% max.

Loss on drying:

0.5% max.

Residue on ignition [sulfated]:

0.1% max

Iron (Fe):

30ppm max.

Heavy metals [Pb]:

10ppm max.

Arsenic [As2O3]:

2ppm max.

Key Features:

  • Acetyl Bonding: Tyrosine conjugated with an acetyl group, offering unique properties and biochemical interactions.
  • Standard Compliance: Meets the stringent AJI92 standard, ensuring quality and consistency.
  • Molecular Specifications: Chemical formula C11H13NO4 and molecular weight 223.23, ensuring precise formulation and quality control.
  • Solubility Profile: Soluble in both water and ethanol, facilitating varied application methods and formulations.

N-Acetyl-L-Tyrosine finds multifaceted applications across diverse industries. Its distinctive bonding with the acetyl group renders it significant in pharmaceutical formulations, neurological research, dietary supplements, and specialized biochemical studies. This unique compound's solubility in water and ethanol makes it versatile for inclusion in diverse formulations, offering potential in neurological health, cognitive function, and specialized amino acid supplements. Its compatibility with various applications underscores its significance as a valuable component in specialized formulations across multiple sectors.

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