L

L-Asparagine

IUPAC: (2S)-2,4-diamino-4-oxobutanoic acid

C4H8N2O3 Organic Compounds CAS 70-47-3
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Quick Reference
Formula / NotationC4H8N2O3
CAS Number70-47-3
Molecular Weight132.12
Melting Point234-235 °C
Density1.543 g/cu cm at 15/4 °C
Solubility29400 mg/L (at 25 °C)
AppearancePellets or Large Crystals
Also Known As(2S)-2,4-diamino-4-oxobutanoic acid; asparagine; 70-47-3; (S)-asparagine; Aspartamic acid; agedoite; altheine; Asparamide; Crystal VI; asparagine acid
CategoryOrganic Compounds

What is L-Asparagine?

L-asparagine is an optically active form of asparagine having L-configuration. It has a role as a micronutrient, a nutraceutical, a mouse metabolite, a Saccharomyces cerevisiae metabolite, a plant metabolite, an Escherichia coli metabolite and a human metabolite. It is a L-alpha-amino acid, an asparagine, an aspartate family amino acid and a proteinogenic amino acid. It is a conjugate base of a L-asparaginium. It is a conjugate acid of a L-asparaginate. It is an enantiomer of a D-asparagine. It is a tautomer of a L-asparagine zwitterion.

Formula & Notation

C4H8N2O3

IUPAC Name: (2S)-2,4-diamino-4-oxobutanoic acid

Other Names / Synonyms: (2S)-2,4-diamino-4-oxobutanoic acid; asparagine; 70-47-3; (S)-asparagine; Aspartamic acid; agedoite; altheine; Asparamide; Crystal VI; asparagine acid

Properties & Characteristics

Appearance: Pellets or Large Crystals. Molecular formula: C4H8N2O3. Molecular weight: 132.12 g/mol. Melting point: 234-235 °C. Density: 1.543 g/cu cm at 15/4 °C. Solubility: 29400 mg/L (at 25 °C). Vapor pressure: 0.00000005 [mmHg]. LogP: -3.4.

Physical Data

PropertyValue
Melting Point234-235 °C
Density1.543 g/cu cm at 15/4 °C
Molecular Weight132.12
Solubility29400 mg/L (at 25 °C)
AppearancePellets or Large Crystals

Uses & Applications

Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.

Safety Information

Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term L-Asparagine
Formula C4H8N2O3
CAS Number 70-47-3
Molecular Weight 132.12
Synonyms (2S)-2,4-diamino-4-oxobutanoic acid; asparagine; 70-47-3; (S)-asparagine; Aspartamic acid; agedoite; altheine; Asparamide; Crystal VI; asparagine acid

Frequently Asked Questions

L-asparagine is an optically active form of asparagine having L-configuration. It has a role as a micronutrient, a nutraceutical, a mouse metabolite, a Saccharomyces cerevisiae metabolite, a plant metabolite, an Escherichia coli metabolite and a human metabolite. It is a L-alpha-amino acid, an asparagine, an aspartate family amino acid and a proteinogenic amino acid. It is a conjugate base of a L-asparaginium. It is a conjugate acid of a L-asparaginate. It is an enantiomer of a D-asparagine. It is a tautomer of a L-asparagine zwitterion.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.