Free lookupCAS 123-91-1
1,4-Dioxane
CAS 123-91-1 · PubChem CID 31275 · C4H8O2 · 88.11 g/mol
Also called 1,4-DIOXANE, Dioxane, p-Dioxane, Diethylene ether, 1,4-Diethylene dioxide.
Opens the builder with 1,4-Dioxane loaded
as component 1 at 100%.
Signal word
Danger
Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-29
Precautionary statement codes
P203, P210, P233, P240, P241, P242, P243, P261, P264+P265, P271, P280, P303+P361+P353, P304+P340, P305+P351+P338, P318, P319, P337+P317, P370+P378, P403+P233, P403+P235, P405, and P501
Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-29
Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-29
Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-29
Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-29
Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-29
- Appearance
Colourless liquid with characteristic odour.
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-29
- Odour
Faint pleasant odor
Hazardous Substances Data Bank (HSDB) — fetched 2026-08-29
- Melting point
12 °C
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-29
- Boiling point
101 °C
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-29
- Flash point
12 °C c.c.
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28
- Auto-ignition temperature
180 °C
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28
- Flammable limits
Lower: 2.0%; Upper: 22%
Hazardous Substances Data Bank (HSDB) — fetched 2026-08-28
- Vapour pressure
Vapor pressure, kPa at 20 °C: 3.9
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28
- Relative density
Relative density (water = 1): 1.03
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-29
- Solubility in water
Solubility in water: miscible
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28
- Partition coefficient, log Kow
no value printed
unsourced — inference candidate
- Viscosity
1.17 mm²/s at 25 °C
ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-29
No published acute toxicity value was found for this substance in the sources we read. On a document, Section 11 would print unsourced — inference candidate rather than an estimate.
This page is the evidence. The document is the deliverable.
Everything above is free and stays free. For $5 the same sourced values are assembled into a 16-section safety data sheet and a print-ready GHS label carrying your company details in Section 1.
Start a document — $5What we read
ILO-WHO International Chemical Safety Cards (ICSCs), Hazardous Substances Data Bank (HSDB), Regulation (EC) No 1272/2008 of the European Parliament and of the Council.
22 sourced records for this substance are in the ledger. Values dated more than 30 days ago are re-fetched on the next document.
- Oxalic acid144-62-7 · 12 records
- Methyl methacrylate80-62-6 · 11 records
- Calcium chloride10043-52-4 · 10 records
- Butyl acetate123-86-4 · 9 records
- Isoeugenol97-54-1 · 9 records
- Retinol68-26-8 · 9 records
- Boric acid10043-35-3 · 8 records
- Trisodium phosphate7601-54-9 · 8 records
Browse every chemical in the ledger · What a GHS safety data sheet contains