Basic Info:

  • Chemical Synonym(s): 2-Amino-3-(4-hydroxyphenyl)-propanoic acid; Tyr; Rovacor; Paschol; Sivlor; Expand
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  • CAS Number: 60-18-4
  • Chemical Formula:


  • MSDS: Download


Flash Point
Refractive Index
-12 ° (C=5, 1mol/L HCl)
Water Solubility
0.45 g/L (25 ºC)
2.2(at 25℃)
6.5 (0.1g/l, H2O)
White to Pale-brown
176 °C
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We help you source L-Tyrosine in China

Our Advantages:

We are currently dealing in lipoic acid, calcium gama-hydroxybutyrate and hyaluronic acid.

We have a great advantage in the supply chain of amino acids, a good amino acid plant needs to have fermentation advantages, high costs and barriers, and also high environmental requirements.

We know every amino acid plant in China and can provide you with the most accurate information.

We have a 20+ year track record of working with suppliers in China and rating reports on them, and we keep our suppliers updated with the latest news so our customers can get the latest supplier reports. We know the market well and have early warning notifications on upstream raw material prices to help you build a stable supply chain.

When selecting suppliers, our procurement specialists will audit the qualification of suppliers, conduct thorough investigations such as field visits and sample testing, and make ratings to ensure the authenticity and legality of supplier information.

We have a long-term stable cooperation with GLP laboratories, encounter customer test results and supplier test results do not match the situation, we will commission a third party to test to ensure the accuracy, authenticity and reliability of the experimental results. In this way, we can effectively control the product quality problems.

We have a long-term cooperative warehouse and can follow up packaging and labeling according to safety regulations and customer requirements. In order to effectively prevent damage to the goods in transit, we have prepared various reinforcement measures and packaging solutions.

We have a number of international freight companies with whom we have long-standing cooperation, and we can choose several route options according to the customer's requirements. For more difficult or urgent orders, we will prepare several alternative solutions to ensure safe and timely delivery.


We promise to immediately and unconditionally exchange or return the goods if they have quality problems. Our employees who deal with after-sales issues have many years of international work experience and are familiar with various processes in multinational work, so they can communicate and deal with after-sales issues without any obstacles.

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L-Tyrosine is one of the most common amino acids that is used in the human body. It is also called 1-Amino-4-phenylbutanoic acid.

It is a non-essential amino acid that acts as a precursor to dopamine, norepinephrine, and epinephrine.

It is primarily present in tyrosine hydroxylase, an enzyme used to convert L-tyrosine into L-DOPA. It is the precursor for the production of permanent neurotransmitters in the brain.

It is produced through chemical reactions in our body, and it can find it in different types of food.  This amino acid is made from an essential amino acid called phenylalanine.

L-Tyrosine is a precursor to a variety of compounds, including neurotransmitters and hormones. This amino acid is also a precursor to the synthesis of melanin found in the hair and skin.


L-Tyrosine is best known for its effects on mental performance, cognition, and the production of several neurotransmitters.

It is a precursor to the thyroid hormone. It is converted into dopamine, epinephrine (adrenaline), and norepinephrine, the primary neurotransmitters that enhance cognitive function.

L-Tyrosine increases the activity of dopamine and norepinephrine. It is vital for maintaining mental performance under stress. It also plays a role in the production of melanin. L-Tyrosine has been studied for obesity, chronic stress, and other issues related to the neurotransmitters it helps produce. 

It is used to treat low blood pressure, depression, stress, Parkinson’s disease, infertility due to hormonal imbalances, and phenylketonuria. In addition, it is also used in the treatment of cocaine addiction and ADHD.

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