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1,2-epoxybutane

Also known as: 1,2-Butene oxide, 1,2-Butylene Oxide, Ethylethylene Oxide, Ethyloxirane, 1,2-Epoxybutane

1,2-epoxybutane (CAS 106-88-7) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C4H8O and a molecular weight of 72.10570 g/mol. Key properties include a melting point of -130ºC, a boiling point of 63 °C(lit.), a density of 0.837 g/mL at 25 °C(lit.) and a flash point of -12.2 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H302 — Harmful if swallowed and H312 — Harmful in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
106-88-7
Jingsj CID
J-1140649-5
Molecular Formula
C4H8O
Molecular Weight
72.10570 g/mol
Category
Ethers
Last updated
11/2/2026

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Physicochemical Properties

Melting Point-130ºC
Boiling Point63 °C(lit.)
Density0.837 g/mL at 25 °C(lit.)
Flash Point-12.2 °C
Exact Mass72.05750
PSA12.53000
LogP0.79520
Additional Property2.2 (vs air)
Vapor Pressure184mmHg at 25°C
Refractive Indexn20/D 1.384

GHS Safety & Compliance

Flammable / Irritant / Health HazardSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H332 — Harmful if inhaled
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation
  • H351 — Suspected of causing cancer
  • H412 — Harmful to aquatic life with long lasting effects

Customs & Trade Information

HS Code2910900090
Summary2910900090. epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1,2-epoxybutane?

The CAS number of 1,2-epoxybutane is 106-88-7.

What are the molecular formula and molecular weight of 1,2-epoxybutane?

1,2-epoxybutane has molecular formula C4H8O and molecular weight 72.10570 g/mol.

Is 1,2-epoxybutane hazardous?

1,2-epoxybutane has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H302 — Harmful if swallowed; H312 — Harmful in contact with skin.

What are the upstream and downstream products of 1,2-epoxybutane?

For 1,2-epoxybutane, Upstream Products: 1-Butene, 2-Vinyloxirane, 1-chlorobutan-2-ol; Downstream Products: (S)-(+)-2-Butanol, 1-Butanol, 4-Ethyl-1,3-dioxolan-2-one.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1,2-epoxybutane (CAS 106-88-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1140649-5 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.