4-aminobenzenesulfonic acid

C6H7NO3S

CAS121-57-3

Warning

Consulting for 4-aminobenzenesulfonic acid

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

Request Consultation

Identification

CAS Number: 121-57-3
EC Number: 204-482-5
UN Number
Index Number: 612-014-00-X
PubChem CID: 8479

Physical-chemical properties

Molecular Formula: C6H7NO3S
Molar Mass: 173.19 g/mol
IUPAC Name: 4-aminobenzenesulfonic acid

Chemical Identifiers

InChI: InChI=1S/C6H7NO3S/c7-5-1-3-6(4-2-5)11(8,9)10/h1-4H,7H2,(H,8,9,10)
InChI Key: HVBSAKJJOYLTQU-UHFFFAOYSA-N

Overview

4-aminobenzenesulfonic acid (CAS: 121-57-3) is a chemical compound widely used in industry. The molecular formula is C6H7NO3S. The molar mass is 173.19 g/mol.

Safety & Classification

Warning

Classification:

Skin Irrit. 2; Eye Irrit. 2; Skin Sens. 1

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

H315

Causes skin irritation.

H319

Causes serious eye irritation.

H317

May cause an allergic skin reaction.

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 H317

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.

Frequently Asked Questions

What is 4-aminobenzenesulfonic acid?

4-aminobenzenesulfonic acid (CAS 121-57-3) is a chemical substance with the formula C6H7NO3S used in various industrial applications.

What are the properties of 4-aminobenzenesulfonic acid?

4-aminobenzenesulfonic acid has a molar mass of 173.19 g/mol. It is classified as Skin Irrit. 2; Eye Irrit. 2; Skin Sens. 1. See the technical data above for more details.

How to store 4-aminobenzenesulfonic acid safely?

4-aminobenzenesulfonic 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-aminobenzenesulfonic acid dangerous?

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

Where can I buy 4-aminobenzenesulfonic acid?

You can order 4-aminobenzenesulfonic acid (CAS 121-57-3) from OYSI. We deliver across Europe and offer technical consulting as well as complete compliance documentation.