Basic Info:

  • Chemical Synonym(s): L-(-)-Carnitine; L-CARNITIN; CAR-OH; Carnitrine; ST 198; Expand
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  • CAS Number: 541-15-1
  • Chemical Formula:


  • MSDS: Download


Melting Point
197-212 °C(lit.)
Refractive Index
-32 ° (C=1, H2O)
Water Solubility
2500 g/L (20 ºC)
Storage Condition
0.64 g/cm3
Storage temp.
Store below +30°C.
Crystals or Crystalline Powder
6.5-8.5 (50g/l, H2O)
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We help you source L-Carnitine 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-Carnitine is also known as L-3,4-dihydroxybutanoic acid. It is an amino acid that is produced in the liver, kidneys, and pancreas.

This amino acid is used to transport fat into an energy-producing furnace called the mitochondria. It is a substance that occurs naturally in the human body.

The human body produces it using the amino acids lysine and methionine. It is often used as an ingredient in health food, vitamins, and medicines. It is a white crystal or crystalline powder that is water-soluble.

It can conjugate with fatty acids to form acyl-CoA compounds. The production of L-Carnitine is performed through three different methods, namely chemical synthesis, yeast fermentation, and microbial fermentation.


 L-Carnitine is often used for weight loss, bodybuilding, and high athletic performance. It is also used to help with muscle recovery.

It is used to transport fat into an energy-producing furnace called the mitochondria. It is often used for weight loss, bodybuilding, and high athletic performance. It is also used to help with muscle recovery.

When bound to long-chain fatty acids, L-Carnitine is an active transporter of fatty acids into the mitochondria to be metabolized for energy.

L-Carnitine can also accumulate in cardiac muscles, inhibiting the formation of reactive oxygen species in the mitochondria, protecting the force against oxidative damage.

Furthermore, L-Carnitine improves the efficiency of cardiac contractility. Recently, L-Carnitine has also been found to protect the heart against reperfusion injury after ischemia/reperfusion.

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