2-methyl-1,2-thiazol-3-one

C4H5NOS

CAS2682-20-4

Danger

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Identification

CAS Number: 2682-20-4
EC Number: 220-239-6
UN Number: 2928
Index Number: 613-326-00-9
PubChem CID: 39800

Physical-chemical properties

Molecular Formula: C4H5NOS
Molar Mass: 115.16 g/mol
IUPAC Name: 2-methyl-1,2-thiazol-3-one

Chemical Identifiers

InChI: InChI=1S/C4H5NOS/c1-5-4(6)2-3-7-5/h2-3H,1H3
InChI Key: BEGLCMHJXHIJLR-UHFFFAOYSA-N

Overview

2-methyl-1,2-thiazol-3-one (CAS: 2682-20-4) is a chemical compound widely used in industry. The molecular formula is C4H5NOS. The molar mass is 115.16 g/mol.

Safety & Classification

Danger

Classification:

Acute Tox. 2; Acute Tox. 3; Acute Tox. 3; Skin Corr. 1B; Eye Dam. 1; Skin Sens. 1A; Aquatic Acute...

GHS Pictograms

Skull and Crossbones

GHS06

Acute toxicity. Fatal if swallowed, in contact with skin, or if inhaled.

Corrosion

GHS05

Corrosive. Causes severe skin burns and eye damage.

Environment

GHS09

Environmental hazard. Toxic to aquatic life with long lasting effects.

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H330

Fatal if inhaled.

H311

Toxic in contact with skin.

H301

Toxic if swallowed.

H314

Causes severe skin burns and eye damage.

H318

Causes serious eye damage.

H317

May cause an allergic skin reaction.

H400

Very toxic to aquatic life.

H410

Very toxic to aquatic life with long lasting effects.

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

Fatal

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:

H330

Skin Contact

Toxic

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:

H311 H314 H317

Eye Contact

Harmful

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:

H314 H318

Ingestion

Toxic

Measures if substance is accidentally swallowed

First Aid Actions

+P301IF SWALLOWED:
+P330Rinse mouth.
+P331Do NOT induce vomiting.
+P310Immediately call a POISON CENTER/doctor.

Related hazard statements:

H301

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	2928
ADR Class	6.1
Packing Group	II
Tunnel Code	D/E
Proper Shipping Name	2-Methyl-2H-isothiazol-3-on, fest
Marine Pollutant	No

Frequently Asked Questions

What is 2-methyl-1,2-thiazol-3-one?

2-methyl-1,2-thiazol-3-one (CAS 2682-20-4) is a chemical substance with the formula C4H5NOS used in various industrial applications.

What are the properties of 2-methyl-1,2-thiazol-3-one?

2-methyl-1,2-thiazol-3-one has a molar mass of 115.16 g/mol. It is classified as Acute Tox. 2; Acute Tox. 3; Acute Tox. 3; Skin Corr. 1B; Eye Dam. 1; Skin Sens. 1A; Aquatic Acute.... See the technical data above for more details.

How to store 2-methyl-1,2-thiazol-3-one safely?

2-methyl-1,2-thiazol-3-one 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 2-methyl-1,2-thiazol-3-one dangerous?

2-methyl-1,2-thiazol-3-one carries the signal word "Danger". 3 GHS pictograms apply. Always follow the safety instructions in the data sheet.

Where can I buy 2-methyl-1,2-thiazol-3-one?

You can order 2-methyl-1,2-thiazol-3-one (CAS 2682-20-4) from OYSI. We deliver across Europe and offer technical consulting as well as complete compliance documentation.