Lanthanum sesquioxide

Lanthanum sesquioxide is a chemical compound registered under number CAS 1312-81-8, with the molecular formula La₂O₃, and a molar mass of 325.809 g/mol.

The molecule contains 5 atoms connected by 0 chemical bonds. The full systematic IUPAC name of this compound is bis(lanthanum(3+));tris(oxygen(2-)). 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, polar surface area PSA = 3 Ų, 0 donors and 3 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 interactive 3D model and the viewer images are protected by copyright (© MolGod.org) — terms of use: molgod.org/copyright/.

Molecular formula	La₂O₃
Molar mass	325.809 g/mol
IUPAC	bis(lanthanum(3+));tris(oxygen(2-))
SMILES	[O-2].[O-2].[O-2].[La+3].[La+3]
InChIKey	MRELNEQAGSRDBK-UHFFFAOYSA-N
logP (XLogP3)	—
PSA	3 Ų
HBD / HBA	0 / 3
PubChem CID	CID 150906 ↗

Signal word: Warning

H315 — Causes skin irritation

H319 — Causes serious eye irritation

H335 — May cause respiratory irritation

Lanthanum oxide · 1312-81-8 · Lanthana · Lanthanum sesquioxide · Lanthanum oxide (La2O3) · Dilanthanum trioxide · Dilanthanum oxide · Lanthanum(3+) oxide · Lanthanum trioxide · Lanthania (La2O3) · 4QI5EL790W · La(2)O(3) · RefChem:152325 · DTXCID4030209 · 215-200-5

• 📊 PubChem CID 150906 — NIH
• 🔬 NIST WebBook — spectroscopy
• 💊 ChEMBL — bioactivity