cyclopentanone

C5H8O

CAS120-92-3

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Identification

CAS Number: 120-92-3
EC Number: 204-435-9
UN Number: 2245
Index Number: 606-025-00-9
PubChem CID: 8452

Physical-chemical properties

Molecular Formula: C5H8O
Molar Mass: 84.12 g/mol
IUPAC Name: cyclopentanone

Chemical Identifiers

InChI: InChI=1S/C5H8O/c6-5-3-1-2-4-5/h1-4H2
InChI Key: BGTOWKSIORTVQH-UHFFFAOYSA-N

Overview

cyclopentanone (CAS: 120-92-3) is a chemical compound widely used in industry. The molecular formula is C5H8O. The molar mass is 84.12 g/mol.

Safety & Classification

Warning

Classification:

Flam. Liq. 3; Skin Irrit. 2; Eye Irrit. 2

GHS Pictograms

Flame

GHS02

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

Exclamation Mark

GHS07

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

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H226

Flammable liquid and vapour.

H315

Causes skin 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

Skin Contact

Irritant

Measures if substance contacts the skin

First Aid Actions

+P302IF ON SKIN:
+P352Wash with plenty of water.
+P361Take off immediately all contaminated clothing.
+P313Get medical advice/attention.

Related hazard statements:

H315

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	2245
ADR Class	3
Packing Group	III
Tunnel Code	D/E
Proper Shipping Name	Cyclopentanon
Marine Pollutant	No

Frequently Asked Questions

What is cyclopentanone?

cyclopentanone (CAS 120-92-3) is a chemical substance with the formula C5H8O used in various industrial applications.

What are the properties of cyclopentanone?

cyclopentanone has a molar mass of 84.12 g/mol. It is classified as Flam. Liq. 3; Skin Irrit. 2; Eye Irrit. 2. See the technical data above for more details.

How to store cyclopentanone safely?

cyclopentanone 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 cyclopentanone dangerous?

cyclopentanone carries the signal word "Warning". 2 GHS pictograms apply. Always follow the safety instructions in the data sheet.

Where can I buy cyclopentanone?

You can order cyclopentanone (CAS 120-92-3) from OYSI. We deliver across Europe and offer technical consulting as well as complete compliance documentation.