Camptothecin 3D structure

Camptothecin (also called Camptothecine, d-Camptothecin) has the formula C20H16N2O4 and a molar mass of 348.4 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
C20H16N2O4
Molar mass
348.4 g/mol
PubChem CID
24360
Heavy atoms
26
Category
Natural products

Explore in 3D Space-filling model PubChem

Identifiers

IUPAC name(19S)-19-ethyl-19-hydroxy-17-oxa-3,13-diazapentacyclo[11.8.0.02,11.04,9.015,20]henicosa-1(21),2,4,6,8,10,15(20)-heptaene-14,18-dione
SMILESCC[C@@]1(C2=C(COC1=O)C(=O)N3CC4=CC5=CC=CC=C5N=C4C3=C2)O
PubChem CID24360
Other namesCamptothecine, d-Camptothecin, 21,22-Secocamptothecin-21-oic acid lactone, Campathecin, d-camptothecine

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.

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