Basic Info:

  • Chemical Synonym(s): L-Arginine; FEMA 3819; L-arginie; AGRININE; L-ARG; Expand
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  • CAS Number: 74-79-3
  • Chemical Formula:


  • MSDS: Download


1.46 g/cm3
Boiling Point
409.1ºC at 760 mmHg
Melting Point
Flash Point
Refractive Index
27 ° (C=8, 6mol/L HCl)
Water Solubility
148.7 g/L (20 ºC)
PH Range
10.5 - 12
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We help you source L(+)-Arginine 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-Arginine has several names, which are Amino Acid, Proline, Alpha Amino Isopropyl Ester. It is an amino acid that is synthesized in the liver.

It is produced by the hydrolysis of compounds like ammonia and methane. It is known to be a conditionally essential amino acid. As a conditionally essential amino acid, it will only be utilized when the body's needs are present.

It is a precursor to nitric oxide synthesis. It's involved in the urea cycle, which helps get rid of ammonia that builds up in your body when you break down protein.

Ammonia can be toxic, so it is good that the body has an efficient way of getting rid of it. It can find it in fish, meat, poultry, nuts, seeds and some vegetables.


L-arginine is a building block for proteins. It is a precursor of nitric oxide, a compound that helps reduce blood pressure.

It also helps the body make creatine, a substance that helps muscles grow bigger and stronger.

It's also a precursor to growth hormones and proteins that contribute to muscle growth. It is used in cosmetic products such as shampoos and facial cleansers and oral hygiene products such as toothpaste and mouthwash.

L-arginine is also used in food products such as yogurt and chocolate. It is added to drinks and energy drinks and sold as a dietary supplement and is usually consumed in pill or capsule form.

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