L-Methionine

Basic Information

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CAS Number

63-68-3

Molecular Formula

C5H11NO2S

Molecular Weight

149.22 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Amines

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Melting Point

284 °C (dec.)

Boiling Point

393.91°C (estimate)

Density

1,34g/cm

Flash Point

139.4ºC

Solubility

1 M HCl: 0.5 M at 20 °C, clear, colorless

Refractive Index

1.5216 (estimate)

Vapor Pressure

8.14X10-8 mm Hg at 25 °C (est)

Odor

Faint

Specific Rotation

23.25 º (c=2, 6N HCl)

SMILES

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CSCC[C@H](N)C(=O)O

InChI

InChI=1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-/m0/s1

InChIKey

FFEARJCKVFRZRR-BYPYZUCNSA-N

LogP

0.1513999999999998

pKa

2.13(at 25℃)

Topological Polar Surface Area

63.32000000000001 Å²

Hydrogen Bond Donor/Acceptor

3 / 3

Complexity

Safety Information

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GHS Hazard Pictograms

H302

Hazard Statement

H302 Harmful if swallowed
Acute toxicity, oral

Storage Conditions

2-8℃

Stability

Stable. Incompatible with strong oxidizing agents.

Sensitiveness

Sensitive to light

Synonyms & References

English

(S)-2-Amino-4-(methylthio)butanoic acid
(S)-2-Amino-4-(methylthio)butyric acid
H-Met-OH
L-Methionine, USP Grade
(L)-S-methylhomocysteine
2-Methyl Eneghlutaronitrile
Methionine
DianFen
L-Methionine
L-Methionin
CultureSure L-Methionine, Animal-derived-free
METHIONINE, L-(P)
METHIONINE, L-(RG)
L-Methionyl b-naphthylamide
Met-bNA
Methionine b-naphthylamide
N-L-Methionyl-2-naphthylamin
N-L-Methionyl-2-naphthylamine
S-methionine
L-2-Amino-4-(methylthio)butyric acid
蛋氨酸
湖北L-蛋氨酸生产厂家
Cymethion
L-(-)-Methionine
Liquimeth
L-Methioninum
Methilanin
Neo-methidin
(L)-Methionine
Methionine (VAN)
Acimethin

MDL Number

MFCD00063097

Customs Code

2930400000

FAQ

What is L-Methionine (CAS: 63-68-3)?

L-Methionine (CAS: 63-68-3) is an essential amino acid containing sulfur, vital for protein synthesis and metabolic processes. Its chemical formula is C5H11NO2S, and it exists as a white crystalline powder with a slightly bitter taste. It is hydrophilic, soluble in water, and serves as a precursor for cysteine and taurine. L-Methionine is widely used in nutritional supplements and pharmaceuticals due to its role in liver health and antioxidant functions.

What are the main uses of L-Methionine (CAS: 63-68-3)?

L-Methionine (CAS: 63-68-3) is primarily used in pharmaceuticals for liver support and reducing homocysteine levels. In the food industry, it acts as a flavor enhancer and nutritional supplement. It is also added to animal feed to improve nutrient absorption and is used in research for studying amino acid metabolism. Its applications highlight its importance in health, nutrition, and industrial processes.

Is L-Methionine (CAS: 63-68-3) safe?

L-Methionine (CAS: 63-68-3) is generally safe when used as directed. It has low toxicity and is approved by regulatory agencies for dietary and medicinal use. However, excessive intake may cause gastrointestinal issues. Proper handling, such as avoiding inhalation and skin contact, is recommended. Safety standards ensure its use in food, pharmaceuticals, and research is controlled and monitored.

How should L-Methionine (CAS: 63-68-3) be stored?

L-Methionine (CAS: 63-68-3) should be stored in a cool, dry place, away from moisture and light. Keep it in a sealed container to prevent degradation. Maintain temperatures between 15-25°C and avoid high humidity. Store in a well-ventilated area to ensure stability. Proper storage preserves its chemical integrity and prolongs shelf life.