Athanor by arbastro
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How to draw chair, Newman, Haworth and Fischer projections

Press R and pick chair, chair + H, Newman, Haworth or Fischer from the row above the toolbar, then click the canvas to place it.

Steps

  1. Press R for the Ring tool.
  2. In the row above the toolbar, pick a projection: chair, chair + H, Newman, Haworth or Fischer. Point at each to see what it draws.
  3. Click the canvas to place it.
  4. Change atoms and labels the same way as on any structure: point and press a letter, or press Enter to type a label.

The templates

Chair + H, a cyclohexane chair with its axial and equatorial hydrogens drawn:

A cyclohexane chair with its axial and equatorial hydrogens.A cyclohexane chair with its axial and equatorial hydrogens.

Newman, looking down a carbon-carbon bond:

A Newman projection template.A Newman projection template.

Haworth, a sugar ring seen from the side:

A Haworth projection template.A Haworth projection template.

Fischer, the vertical and horizontal cross used for sugars and amino acids:

A Fischer projection template.A Fischer projection template.

Drawing basicsHow to add ringsPress R, then J for benzene or 3 to 8 for that ring size, and click empty canvas. Click a bond of another ring to fuse onto it, or an atom to make a spiro ring. Insert › Ring size takes any size from 3 to 30.

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Last updated Nov 12, 2026