Allopregnanolone 3D structure

Allopregnanolone (also called Brexanolone, Allotetrahydroprogesterone) has the formula C21H34O2 and a molar mass of 318.5 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
C21H34O2
Molar mass
318.5 g/mol
PubChem CID
92786
Heavy atoms
23
Category
Hormones

Explore in 3D Space-filling model PubChem

Identifiers

IUPAC name1-[(3R,5S,8R,9S,10S,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]ethanone
SMILESCC(=O)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CC[C@@H]4[C@@]3(CC[C@H](C4)O)C)C
PubChem CID92786
Other namesBrexanolone, Allotetrahydroprogesterone, 3alpha-hydroxy-5alpha-pregnan-20-one, 3alpha,5alpha-THP, Allopregnan-3alpha-ol-20-one

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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