Observed arrival · 2026-10-25
OrgoDraw: draw a molecule and see what it is
A free organic chemistry tool for drawing structures, checking their names and properties, and practicing IUPAC naming.
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- For
- Organic chemistry students and teachers
- Worth noticing
- Nine topic groups list 17–19 exercises each, from basic alkanes through E/Z and R/S stereochemistry.
Field notes
The drawing workflow lets users change a bond or atom and see the displayed molecular properties update; it also flags impossible structures such as carbon with five bonds. Practice includes both drawing from a name and identifying a structure from four choices. The site says its checker uses RDKit to compare molecules, and that exercise names were checked against structures with two independent sources.
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○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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