L-Isoleucine CAS 73-32-5

L-Isoleucine CAS 73-32-5

L-Isoleucine is an amino acid that can enhance endurance, help restore and repair muscle tissue, and promote wound coagulation. This amino acid is particularly important for professional athletes and bodybuilders because its main function in the body is to improve energy and help the body recover after strong physical activity.
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Molecular Formula:
Molecular Structure:  mtxx364
Molecular Weight:
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L-Isoleucine occurs as crystalline leaflets or as a white, crystalline powder. It is soluble in 25 parts of water, slightly soluble in hot alcohol, and soluble in diluted mineral acids and in alkaline solutions. It sublimes at between 168° and 170°, and melts with decomposition at about 284°. The pH of a 1:100 aqueous solution is between 5.5 and 7.0.



Isoleucine is a branched chain amino acid. There are three kinds of branched chain amino acids valine, leucine and isoleucine in human body. They all have the function of helping muscle recover after exercise. Isoleucine actually breaks down into energy in muscle tissue, and it also keeps energy levels stable by regulating blood sugar. Lack of isoleucine can cause hypoglycemic symptoms such as headache, dizziness, fatigue, depression and irritability

Isoleucine is classified as an essential amino acid and can only be ingested through diet. The best sources of this amino acid include high protein foods such as nuts, meat, eggs, fish, lentils, peas and soybeans. People who follow a low protein diet and exercise a lot should consider taking health products.



White or almost white, crystalline powder or flakes
Specific optical rotation 20℃:  +38.6°- +41.5°

25℃:  +38.2°- +41.1°
Loss on drying ≤0.3%
Residue on ignition 


25kg/drum or as per requirement.



Store in a cool, dry place and protected from light.


Minimum Order


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