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2,2-dimethyl-1,3-dioxolan-4-one

Also known as: 2,2-Dimethyl-1,3-dioxolan-4-one, (1-Hydroxy-1-methylethoxy)acetic acid γ-lactone, 1,3-Dioxolan-4-one, 2,2-dimethyl-, 4-oxo-2,2-dimethyl-1,3-dioxolane, glycolic acid acetonide

2,2-dimethyl-1,3-dioxolan-4-one (CAS 4158-86-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H8O3 and a molecular weight of 116.11500 g/mol. Key properties include a boiling point of 41ºC(lit.), a density of 0.989 g/mL at 25ºC(lit.) and a flash point of 57.2 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
4158-86-5
Jingsj CID
J-8152-7
Molecular Formula
C5H8O3
Molecular Weight
116.11500 g/mol
Category
Ketones
Last updated
11/2/2026

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Physicochemical Properties

Boiling Point41ºC(lit.)
Density0.989 g/mL at 25ºC(lit.)
Flash Point57.2 °C
Exact Mass116.04700
PSA35.53000
LogP0.29590
Refractive Indexn20/D 1.415(lit.)

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning
  • H226 — Flammable liquid and vapour
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2932999099
Summary2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 2,2-dimethyl-1,3-dioxolan-4-one?

The CAS number of 2,2-dimethyl-1,3-dioxolan-4-one is 4158-86-5.

What are the molecular formula and molecular weight of 2,2-dimethyl-1,3-dioxolan-4-one?

2,2-dimethyl-1,3-dioxolan-4-one has molecular formula C5H8O3 and molecular weight 116.11500 g/mol.

Is 2,2-dimethyl-1,3-dioxolan-4-one hazardous?

2,2-dimethyl-1,3-dioxolan-4-one has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

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

Last updated:

How to cite: Jingsj. "2,2-dimethyl-1,3-dioxolan-4-one (CAS 4158-86-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8152-7 (accessed 2026-11-09).

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