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Card 137 of 9992026-08-27 issue

Observed arrival · 2026-08-27

ChemArche: Structure to Spectrum

chemarche.com Observed source
Editorial interest 84/100 Selection signal · not a rating of the site

A chemistry workspace for drawing or searching molecules, then examining their structures, properties, IR, NMR, and mass spectra.

Landing page captured for the 2026-08-27 issue.

Field notes

The workflow begins with either a drawn structure, pasted SMILES, or a molecule search, then carries that object into formula, mass, functional-group, database-match, and spectrum views. The page names 5,013 searchable records and illustrates the system with common compounds such as acetone and caffeine as well as pentadecanal, whose preview includes an aldehyde label and a 1725 cm⁻¹ IR feature. Supporting sections list stoichiometry, molarity, gas-law, equation, periodic-table, and simulation tools.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

LoginAccess appeared gated
PrettyNotable craft visible
ProPolished or operationally mature
NicheUnusually specific use
ƒJavaScriptBrowser-side code central

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chemarche.com

Landing page observed 2026-08-27. The live site may have changed.