L

L-Serine

IUPAC: (2S)-2-amino-3-hydroxypropanoic acid

C3H7NO3 Organic Compounds CAS 56-45-1
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Quick Reference
Formula / NotationC3H7NO3
CAS Number56-45-1
Molecular Weight105.09
Melting Point228 dec °C
Density1.6 g/cu cm @ 22 °C
Solubility425000 mg/L (at 25 °C)
AppearanceSolid; [Merck Index] White powder; [Sigma-Aldrich MSDS]
Also Known As(2S)-2-amino-3-hydroxypropanoic acid; serine; 56-45-1; (S)-2-Amino-3-hydroxypropanoic acid; (S)-Serine; beta-Hydroxyalanine; L-(-)-Serine; L-ser; Serina; L-Serin
CategoryOrganic Compounds

What is L-Serine?

L-serine is the L-enantiomer of serine. It has a role as a mouse metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite, a human metabolite and an algal metabolite. It is a L-alpha-amino acid, a serine, a serine family amino acid and a proteinogenic amino acid. It is a conjugate base of a L-serinium. It is a conjugate acid of a L-serinate. It is an enantiomer of a D-serine. It is a tautomer of a L-serine zwitterion.

Formula & Notation

C3H7NO3

IUPAC Name: (2S)-2-amino-3-hydroxypropanoic acid

Other Names / Synonyms: (2S)-2-amino-3-hydroxypropanoic acid; serine; 56-45-1; (S)-2-Amino-3-hydroxypropanoic acid; (S)-Serine; beta-Hydroxyalanine; L-(-)-Serine; L-ser; Serina; L-Serin

Properties & Characteristics

Appearance: Solid; [Merck Index] White powder; [Sigma-Aldrich MSDS]. Molecular formula: C3H7NO3. Molecular weight: 105.09 g/mol. Melting point: 228 dec °C. Density: 1.6 g/cu cm @ 22 °C. Solubility: 425000 mg/L (at 25 °C). Vapor pressure: 0.00000004 [mmHg]. LogP: -3.1.

Physical Data

PropertyValue
Melting Point228 dec °C
Density1.6 g/cu cm @ 22 °C
Molecular Weight105.09
Solubility425000 mg/L (at 25 °C)
AppearanceSolid; [Merck Index] White powder; [Sigma-Aldrich MSDS]

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-Serine
Formula C3H7NO3
CAS Number 56-45-1
Molecular Weight 105.09
Synonyms (2S)-2-amino-3-hydroxypropanoic acid; serine; 56-45-1; (S)-2-Amino-3-hydroxypropanoic acid; (S)-Serine; beta-Hydroxyalanine; L-(-)-Serine; L-ser; Serina; L-Serin

Frequently Asked Questions

L-serine is the L-enantiomer of serine. It has a role as a mouse metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite, a human metabolite and an algal metabolite. It is a L-alpha-amino acid, a serine, a serine family amino acid and a proteinogenic amino acid. It is a conjugate base of a L-serinium. It is a conjugate acid of a L-serinate. It is an enantiomer of a D-serine. It is a tautomer of a L-serine 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.