butan-2-ol

C4H10O

CAS78-92-2

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Identification

CAS Number: 78-92-2
EC Number: 201-158-5
UN Number: 1120
Index Number: 603-127-00-5
PubChem CID: 6568

Physical-chemical properties

Molecular Formula: C4H10O
Molar Mass: 74.12 g/mol
IUPAC Name: butan-2-ol

Chemical Identifiers

InChI: InChI=1S/C4H10O/c1-3-4(2)5/h4-5H,3H2,1-2H3
InChI Key: BTANRVKWQNVYAZ-UHFFFAOYSA-N

Overview

butan-2-ol (CAS: 78-92-2) is a chemical compound widely used in industry. The molecular formula is C4H10O. The molar mass is 74.12 g/mol.

Safety & Classification

Warning

Classification:

Flam. Liq. 3; STOT SE 3; STOT SE 3; 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.

H335

May cause respiratory irritation.

H336

May cause drowsiness or dizziness.

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 H336

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	1120
ADR Class	3
Packing Group	II
Tunnel Code	D/E
Proper Shipping Name	sec-Butanol, Flp. < 23 °C, Sdb. > 35 °C
Marine Pollutant	No

Frequently Asked Questions

What is butan-2-ol?

butan-2-ol (CAS 78-92-2) is a chemical substance with the formula C4H10O used in various industrial applications.

What are the properties of butan-2-ol?

butan-2-ol has a molar mass of 74.12 g/mol. It is classified as Flam. Liq. 3; STOT SE 3; STOT SE 3; Eye Irrit. 2. See the technical data above for more details.

How to store butan-2-ol safely?

butan-2-ol 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 butan-2-ol dangerous?

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

Where can I buy butan-2-ol?

You can order butan-2-ol (CAS 78-92-2) from OYSI. We deliver across Europe and offer technical consulting as well as complete compliance documentation.