ChemSearch

ChemSearch

Search compounds, structures, reference and use practical chemistry tools.

FurtherSecrets24680 Science & Education

Download (3.3 MB)

Screenshots

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Description

ChemSearch is a quick and simple chemistry reference app for Android.

Search compounds by name, CAS number, formula, PubChem CID, or drawn structure.
Open formulas, identifiers, 2D structures, 3D models, descriptions, synonyms, and
GHS safety summaries when source data is available.

The app also includes a periodic table, a built-in chemical database, offline
compound saves, recent searches, favorites, compound comparison, and practical
chemistry tools such as molar mass, empirical formula, pH/pOH, oxidation state,
reaction balancing, precipitation, stoichiometry, dilution, gas laws, SMILES
lookup, and a local 3D molecule viewer.

Most chemistry data comes from public sources such as PubChem, Wikipedia,
Wikimedia Commons, UNECE GHS pictograms, Bowserinator/Periodic-Table-JSON on Github, and
the NCI/CADD resolver.

AI descriptions are optional and require the user to add their own API key for
the chosen provider.

Safety information is for quick reference only. Always follow the official SDS,
lab rules, and local safety requirements for real handling decisions.

What’s new (1.13.8)

- Improved build system compatibility and stability.
- Technical updates: Upgraded internal build tools to Gradle 9.6.0.
- General maintenance and project cleanup.

Anti-features

Properties of this app that are worth knowing about before installing.

  • NonFreeNet
  • TetheredNet

Versions

Version Date Size Requires Android Download
1.13.8 current
8310a64bd47c60ae…
 2026-07-12 3.3 MB API 26
1.13.7
90202f457e42c7c6…
 2026-07-03 3.2 MB API 26

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • Internet accessSend and receive data over the internet.
  • Write storageCreate and change files on the device storage.
  • Prevent sleepingKeep the device from going to sleep.
  • Network stateCheck whether and how the device is connected.
  • Run at startupStart automatically after the device is switched on.
  • Foreground serviceKeep running in the background, visible in the status bar.
  • chemsearch.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
  • Read storageRead files on the device storage.

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