Naphthalene (CAS 91-20-3)

Naphthalene (CAS 91-20-3) is a chemical compound registered under number CAS 91-20-3, with the molecular formula C₁₀H₈, and a molar mass of 128.17 g/mol.

The molecule contains 18 atoms connected by 19 chemical bonds. The full systematic IUPAC name of this compound is naphthalene. The interactive 3D model above lets you view the spatial arrangement of the atoms — you can rotate it with the mouse, zoom with the scroll wheel, and switch between skeletal / Ball & Stick / Space Fill visualization modes.

In terms of physicochemical properties, the partition coefficient logP = 3.3 (positive value, a lipophilic compound), polar surface area PSA = 0 Ų, 0 donors and 0 hydrogen bond acceptors. These parameters are key when assessing bioavailability and interaction with biomolecules.

Chemical data for this compound comes from PubChem (NIH NLM NCBI), one of the world's largest chemical databases. All information is updated automatically and enriched with GHS hazard statement translations compliant with the CLP Regulation (EC 1272/2008). The widget above may be used for educational, research and commercial purposes.

Signal word: Warning

H351 — Suspected of causing cancer

H302 — Harmful if swallowed

H400 — Very toxic to aquatic life

H410 — Very toxic to aquatic life with long lasting effects

• 📊 PubChem CID 931 — NIH
• 🔬 NIST WebBook — spectroscopy
• 🌐 Wikidata
• 💊 ChEMBL — bioactivity