styrene

C8H8

CAS100-42-5

Danger

Consulting for styrene

Our experts support you with application, dosage, and compliance.

Request Consultation

Identification

CAS Number: 100-42-5
EC Number: 202-851-5
UN Number: 2055
Index Number: 601-026-00-0
PubChem CID: 7501

Physical-chemical properties

Molecular Formula: C8H8
Molar Mass: 104.15 g/mol
IUPAC Name: styrene

Chemical Identifiers

InChI: InChI=1S/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H2
InChI Key: PPBRXRYQALVLMV-UHFFFAOYSA-N

Overview

styrene (CAS: 100-42-5) is a chemical compound widely used in industry. The molecular formula is C8H8. The molar mass is 104.15 g/mol.

Safety & Classification

Danger

Classification:

Flam. Liq. 3; Repr. 2; Acute Tox. 4 *; STOT RE 1; Skin Irrit. 2; 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

H226

Flammable liquid and vapour.

H332

Harmful if inhaled.

H372

Causes damage to organs through prolonged or repeated exposure.

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

Inhalation

Harmful

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:

H332

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	2055
ADR Class	3
Packing Group	III
Tunnel Code	D/E
Proper Shipping Name	Styren, Monomer, stabilisiert
Marine Pollutant	No

Frequently Asked Questions

What is styrene?

styrene (CAS 100-42-5) is a chemical substance with the formula C8H8 used in various industrial applications.

What are the properties of styrene?

styrene has a molar mass of 104.15 g/mol. It is classified as Flam. Liq. 3; Repr. 2; Acute Tox. 4 *; STOT RE 1; Skin Irrit. 2; Eye Irrit. 2. See the technical data above for more details.

How to store styrene safely?

styrene 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 styrene dangerous?

styrene carries the signal word "Danger". 3 GHS pictograms apply. Always follow the safety instructions in the data sheet.

Where can I buy styrene?

You can order styrene (CAS 100-42-5) from OYSI. We deliver across Europe and offer technical consulting as well as complete compliance documentation.