1,4-dioxane

C4H8O2

CAS123-91-1

Danger

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Identification

CAS Number: 123-91-1
EC Number: 204-661-8
UN Number: 1165
Index Number: 603-024-00-5
PubChem CID: 31275

Physical-chemical properties

Molecular Formula: C4H8O2
Molar Mass: 88.11 g/mol
IUPAC Name: 1,4-dioxane

Chemical Identifiers

InChI: InChI=1S/C4H8O2/c1-2-6-4-3-5-1/h1-4H2
InChI Key: RYHBNJHYFVUHQT-UHFFFAOYSA-N

Overview

1,4-dioxane (CAS: 123-91-1) is a chemical compound widely used in industry. The molecular formula is C4H8O2. The molar mass is 88.11 g/mol.

Safety & Classification

Danger

Classification:

Flam. Liq. 2; Carc. 1B; STOT SE 3; Eye Irrit. 2

GHS Pictograms

Flame

GHS02

Flammable. May ignite on contact with air, water, or heat sources.

Health Hazard

GHS08

Serious health hazard. May cause cancer, organ damage, or genetic defects.

Exclamation Mark

GHS07

Harmful. May cause irritation, allergic reactions, or drowsiness.

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H225

Highly flammable liquid and vapour.

H350

May cause cancer.

H335

May cause respiratory irritation.

H319

Causes serious eye irritation.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Inhalation

Irritant

Measures if vapours or dust are inhaled

First Aid Actions

+P304IF INHALED:
+P340Remove person to fresh air and keep comfortable for breathing.
+P311Call a POISON CENTER/doctor.

Related hazard statements:

H335

Eye Contact

Irritant

Measures if substance gets into the eyes

First Aid Actions

+P305IF IN EYES:
+P351Rinse cautiously with water for several minutes.
+P338Remove contact lenses, if present and easy to do. Continue rinsing.
+P313Get medical advice/attention.

Related hazard statements:

H319

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number	1165
ADR Class	3
Packing Group	II
Tunnel Code	D/E
Proper Shipping Name	Dioxan
Marine Pollutant	No

Frequently Asked Questions

What is 1,4-dioxane?

1,4-dioxane (CAS 123-91-1) is a chemical substance with the formula C4H8O2 used in various industrial applications.

What are the properties of 1,4-dioxane?

1,4-dioxane has a molar mass of 88.11 g/mol. It is classified as Flam. Liq. 2; Carc. 1B; STOT SE 3; Eye Irrit. 2. See the technical data above for more details.

How to store 1,4-dioxane safely?

1,4-dioxane should be stored according to the Safety Data Sheet instructions. Follow the GHS labeling and keep the substance in a cool, dry and well-ventilated place.

Is 1,4-dioxane dangerous?

1,4-dioxane carries the signal word "Danger". 3 GHS pictograms apply. Always follow the safety instructions in the data sheet.

Where can I buy 1,4-dioxane?

You can order 1,4-dioxane (CAS 123-91-1) from OYSI. We deliver across Europe and offer technical consulting as well as complete compliance documentation.