Hydrogen peroxide

from source

H2O2 · 34.015 g/mol

dioxidane · dihydrogen dioxide · Albone · Hioxyl

What is Hydrogen peroxide?

The pale blue liquid sold as a 3 percent solution for cleaning cuts and bleaching hair. It breaks down into water and oxygen, which is the fizzing. from source

CategoryEveryday chemistry

LeaderboardsBiggest

Fig. 1 · 2D structure RDKit

SMILESOO

Where you'll find it

Household cleanerswhat else is in it →First aid kitwhat else is in it →

Curated by MoleculeFinder from source

Toxicity & hazards

Toxicity · LD50

4,060 mg/kg · very low toxicity · LD50 rat dermal from source

1 more reported value

15,000 mg/kgLD50 · iv · rabbit

DangerOxidizerCorrosiveToxicIrritantHealth hazardEnvironmentalH271, H302, H311, H313, H314, H318, H330, H331, H332, H335, H351, H361, H370, H372, H373, H400, H402, H412from source

Compare with

Hydrogen peroxide vs Sodium hypochlorite Hydrogen peroxide vs Isopropyl alcohol

Sources & methodology

PubChem CID: 784
Wikidata: Q171877
Structure: PubChem → RDKit
LD50: PubChem
Everyday relationships: MoleculeFinder editorial curation
Data refreshed: October 19, 2026

How MoleculeFinder sources and labels its data