Leucine | CAS No. 328-39-2

Leucine

Basic Information

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CAS Number

328-39-2

Molecular Formula

C6H13NO2

Molecular Weight

131.17 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Amines

Basic Physical Properties

Melting Point

293-296 °C (subl.)

Boiling Point

Decomposes

Flash Point

90.3℃

Solubility

1 M HCl: soluble

Refractive Index

1.4630 (estimate)

SMILES

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NC(CC(C)C)C(O)=O

InChI

InChI=1S/C6H13NO2/c1-4(2)3-5(7)6(8)9/h4-5H,3,7H2,1-2H3,(H,8,9)

InChIKey

ROHFNLRQFUQHCH-UHFFFAOYSA-N

LogP

0.44439999999999985

Topological Polar Surface Area

63.32 Å²

Hydrogen Bond Donor/Acceptor

3 / 3

Complexity

101

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Stability

Stable. Incompatible with strong oxidizing agents.

Synonyms & References

English

DL-Leucine
DL-2-Amino-4-methylpentanoic acid
DL-Leu
(+/-)-2-Amino-4-methylpentanoic acid~H-DL-Leu-OH
(±)-Leucine
(.+-.)-Leucine
2-Amino-4-methylpentanoic acid
ALPHA-AMINO-ISO-CAPROIC ACID
H-DL-Leu-OH
DL-Leucin
Leucine,DL
ucine,dl
Leucine, DL- (8CI)
(RS)-Leucine

MDL Number

MFCD00063087

Customs Code

29224995

FAQ

What is Leucine (CAS: 328-39-2)?

Leucine is an essential branched-chain amino acid (BCAA) with the chemical formula C6H13NO2. It is a white crystalline solid, slightly soluble in water, and has a melting point of around 257°C. Leucine plays a critical role in protein synthesis, muscle repair, and energy production, making it vital for bodily functions and metabolic processes.

What are the main uses of Leucine (CAS: 328-39-2)?

Leucine is widely used in pharmaceuticals as a supplement for muscle growth and recovery. In the food industry, it serves as a flavor enhancer (umami) and is added to protein powders and animal feed. It also finds applications in research for studying amino acid metabolism and in industrial settings for producing amino acid derivatives and nutritional products.

Is Leucine (CAS: 328-39-2) safe?

Leucine is generally recognized as safe (GRAS) by the FDA when consumed in normal food amounts. However, excessive intake may cause gastrointestinal discomfort or interact with certain medications. Proper handling, such as using gloves and avoiding inhalation, is recommended to ensure safety during industrial or research use.

How should Leucine (CAS: 328-39-2) be stored?

Leucine should be stored in a cool, dry place away from direct light in airtight containers. It is stable under normal storage conditions but must be protected from moisture to prevent degradation. Maintaining proper storage ensures its potency and safety for both industrial and dietary purposes.