E

Ephedrine

IUPAC: (1R,2S)-2-(methylamino)-1-phenylpropan-1-ol

C10H15NO Organic Compounds CAS 299-42-3
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Quick Reference
Formula / NotationC10H15NO
CAS Number299-42-3
Molecular Weight165.23
Melting Point34 °C
Boiling Point255 °C
Density1.0085 g/cu cm at 22 °C
Solubility63600 mg/L (at 30 °C)
AppearanceSolid
Also Known As(1R,2S)-2-(methylamino)-1-phenylpropan-1-ol; l-Ephedrine; (-)-Ephedrine; 299-42-3; Ephedrin; Mandrin; Ephedrol; Sanedrine; L(-)-Ephedrine; 1-Sedrin
CategoryOrganic Compounds

What is Ephedrine?

(-)-ephedrine is a phenethylamine alkaloid that is 2-phenylethanamine substituted by a methyl group at the amino nitrogen and a methyl and a hydroxy group at position 2 and 1 respectively. It has a role as a sympathomimetic agent, a xenobiotic, a vasoconstrictor agent, a plant metabolite, a bacterial metabolite, a nasal decongestant and an environmental contaminant. It is a member of phenylethanolamines and a phenethylamine alkaloid. It is a conjugate base of a (-)-ephedrinium.

Formula & Notation

C10H15NO

IUPAC Name: (1R,2S)-2-(methylamino)-1-phenylpropan-1-ol

Other Names / Synonyms: (1R,2S)-2-(methylamino)-1-phenylpropan-1-ol; l-Ephedrine; (-)-Ephedrine; 299-42-3; Ephedrin; Mandrin; Ephedrol; Sanedrine; L(-)-Ephedrine; 1-Sedrin

Properties & Characteristics

Appearance: Solid. Molecular formula: C10H15NO. Molecular weight: 165.23 g/mol. Boiling point: 255 °C. Melting point: 34 °C. Density: 1.0085 g/cu cm at 22 °C. Solubility: 63600 mg/L (at 30 °C). LogP: 0.9.

Physical Data

PropertyValue
Melting Point34 °C
Boiling Point255 °C
Density1.0085 g/cu cm at 22 °C
Molecular Weight165.23
Solubility63600 mg/L (at 30 °C)
AppearanceSolid

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 Ephedrine
Formula C10H15NO
CAS Number 299-42-3
Molecular Weight 165.23
Synonyms (1R,2S)-2-(methylamino)-1-phenylpropan-1-ol; l-Ephedrine; (-)-Ephedrine; 299-42-3; Ephedrin; Mandrin; Ephedrol; Sanedrine; L(-)-Ephedrine; 1-Sedrin

Frequently Asked Questions

(-)-ephedrine is a phenethylamine alkaloid that is 2-phenylethanamine substituted by a methyl group at the amino nitrogen and a methyl and a hydroxy group at position 2 and 1 respectively. It has a role as a sympathomimetic agent, a xenobiotic, a vasoconstrictor agent, a plant metabolite, a bacterial metabolite, a nasal decongestant and an environmental contaminant. It is a member of phenylethanolamines and a phenethylamine alkaloid. It is a conjugate base of a (-)-ephedrinium.

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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.