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Atropine

IUPAC: [(1S,5R)-8-methyl-8-azabicyclo[3.2.1]octan-3-yl] 3-hydroxy-2-phenylpropanoate

C17H23NO3 Organic Compounds CAS 51-55-8
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Quick Reference
Formula / NotationC17H23NO3
CAS Number51-55-8
Molecular Weight289.4
Melting Point108.5 °C
Solubility3560 mg/L (at 20 °C)
Also Known As[(1S,5R)-8-methyl-8-azabicyclo[3.2.1]octan-3-yl] 3-hydroxy-2-phenylpropanoate; RefChem:1092872; Npc209773; dl-Hyoscyamine; 51-55-8; Atropen; Atropin; Tropine tropate; dl-Tropyltropate; Atropinol
CategoryOrganic Compounds

What is Atropine?

Atropine is a racemate composed of equimolar concentrations of (S)- and (R)-atropine. It is obtained from deadly nightshade (Atropa belladonna) and other plants of the family Solanaceae. It has a role as an antidote to sarin poisoning, a oneirogen, a bronchodilator agent, an anti-arrhythmia drug, a muscarinic antagonist, a parasympatholytic, a mydriatic agent, an anaesthesia adjuvant and a plant metabolite. It contains a (S)-atropine and a (R)-atropine.

Formula & Notation

C17H23NO3

IUPAC Name: [(1S,5R)-8-methyl-8-azabicyclo[3.2.1]octan-3-yl] 3-hydroxy-2-phenylpropanoate

Other Names / Synonyms: [(1S,5R)-8-methyl-8-azabicyclo[3.2.1]octan-3-yl] 3-hydroxy-2-phenylpropanoate; RefChem:1092872; Npc209773; dl-Hyoscyamine; 51-55-8; Atropen; Atropin; Tropine tropate; dl-Tropyltropate; Atropinol

Properties & Characteristics

Molecular formula: C17H23NO3. Molecular weight: 289.4 g/mol. Melting point: 108.5 °C. Solubility: 3560 mg/L (at 20 °C). LogP: 1.8.

Physical Data

PropertyValue
Melting Point108.5 °C
Molecular Weight289.4
Solubility3560 mg/L (at 20 °C)

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 Atropine
Formula C17H23NO3
CAS Number 51-55-8
Molecular Weight 289.4
Synonyms [(1S,5R)-8-methyl-8-azabicyclo[3.2.1]octan-3-yl] 3-hydroxy-2-phenylpropanoate; RefChem:1092872; Npc209773; dl-Hyoscyamine; 51-55-8; Atropen; Atropin; Tropine tropate; dl-Tropyltropate; Atropinol

Frequently Asked Questions

Atropine is a racemate composed of equimolar concentrations of (S)- and (R)-atropine. It is obtained from deadly nightshade (Atropa belladonna) and other plants of the family Solanaceae. It has a role as an antidote to sarin poisoning, a oneirogen, a bronchodilator agent, an anti-arrhythmia drug, a muscarinic antagonist, a parasympatholytic, a mydriatic agent, an anaesthesia adjuvant and a plant metabolite. It contains a (S)-atropine and a (R)-atropine.

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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.