Physostigmine 3D structure

Physostigmine (also called Eserine, Physostol) has the formula C₁₅H₂₁N₃O₂ and a molar mass of 275.35 g/mol. The model above is PubChem's computed 3D conformer: drag to rotate, scroll to zoom, and use the measurement tools to read bond lengths and angles.

Formula: C₁₅H₂₁N₃O₂
Molar mass: 275.35 g/mol
PubChem CID: 5983
Heavy atoms: 20
Category: Common drugs

Explore in 3D Space-filling model PubChem

Identifiers

IUPAC name	[(3aR,8bS)-3,4,8b-trimethyl-2,3a-dihydro-1H-pyrrolo[2,3-b]indol-7-yl] N-methylcarbamate
SMILES	`C[C@@]12CCN([C@@H]1N(C3=C2C=C(C=C3)OC(=O)NC)C)C`
PubChem CID	5983
Other names	Eserine, Physostol, Esromiotin, Ezerin, Calabarine

How to read the 3D model

Atoms use the standard CPK colors: carbon gray, hydrogen white, oxygen red, nitrogen blue, sulfur yellow. Switch to Spacefill to see the molecule's overall shape and size, or Stick for a clear view of the bonds. Click two atoms in distance mode to measure a bond length in ångströms.

3D coordinates are PubChem's computed conformer, one low-energy shape of the molecule. Flexible molecules can take many other shapes.

More common drugs

Browse all small molecules