4-methylbenzenesulfonic acid

C7H8O3S

CAS104-15-4

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Identification

CAS Number: 104-15-4
EC Number: 203-180-0
UN Number: 2585
Index Number: 016-030-00-2
PubChem CID: 6101

Physical-chemical properties

Molecular Formula: C7H8O3S
Molar Mass: 172.20 g/mol
IUPAC Name: 4-methylbenzenesulfonic acid

Chemical Identifiers

InChI: InChI=1S/C7H8O3S/c1-6-2-4-7(5-3-6)11(8,9)10/h2-5H,1H3,(H,8,9,10)
InChI Key: JOXIMZWYDAKGHI-UHFFFAOYSA-N

Overview

4-methylbenzenesulfonic acid (CAS: 104-15-4) is a chemical compound widely used in industry. The molecular formula is C7H8O3S. The molar mass is 172.20 g/mol.

Safety & Classification

Warning

Classification:

STOT SE 3; Skin Irrit. 2; Eye Irrit. 2

GHS Pictograms

Exclamation Mark

GHS07

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

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H335

May cause respiratory irritation.

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

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

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	2585
ADR Class	8
Packing Group	III
Tunnel Code	E
Proper Shipping Name	4-Methylbenzensulfonsäure, freie Schwefelsäure <= 5 %, fest
Marine Pollutant	No

Frequently Asked Questions

What is 4-methylbenzenesulfonic acid?

4-methylbenzenesulfonic acid (CAS 104-15-4) is a chemical substance with the formula C7H8O3S used in various industrial applications.

What are the properties of 4-methylbenzenesulfonic acid?

4-methylbenzenesulfonic acid has a molar mass of 172.20 g/mol. It is classified as STOT SE 3; Skin Irrit. 2; Eye Irrit. 2. See the technical data above for more details.

How to store 4-methylbenzenesulfonic acid safely?

4-methylbenzenesulfonic acid 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 4-methylbenzenesulfonic acid dangerous?

4-methylbenzenesulfonic acid carries the signal word "Warning". 1 GHS pictograms apply. Always follow the safety instructions in the data sheet.

Where can I buy 4-methylbenzenesulfonic acid?

You can order 4-methylbenzenesulfonic acid (CAS 104-15-4) from OYSI. We deliver across Europe and offer technical consulting as well as complete compliance documentation.