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2026-10-31 issue

Observed arrival · 2026-10-31

Lone Pair, a browser-based chemistry editor

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Editorial interest 82/100 Selection signal · not a rating of the site

Lone Pair lets users draw chemical structures and reactions, inspect them with analysis tools, and export publication-ready files.

Landing page captured for the 2026-10-31 issue.
For
Chemistry students and researchers preparing structure drawings
Worth noticing
Project files can be saved as self-contained HTML documents intended to reopen in a browser, including offline.

Field notes

The interface includes both drawing controls and chemistry-specific actions, including copying SMILES or molfile data and looking up names and CAS numbers. It lists styles such as ACS 1996, RSC, and Nature Reviews, plus settings for bond lengths and line widths. The page says project files can be saved as self-contained HTML; PNG exports are described as 600 dpi at true size, while SVG and PDF are vector formats.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use

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lonepair.app

Landing page observed 2026-10-31. The live site may have changed.