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Heterocyclic building blocks

2-Chlorothiazole

Also known as 2-chloro-1,3-thiazole, Thiazole, 2-chloro-, 2-Thiazolyl Chloride

CAS 3034-52-4Formula C3H2ClNSMolar mass 119.58 g/molEC 221-228-9
GHS signal word: Danger. Pictograms: Flammable, Corrosive, Harmful or irritant 11 suppliers listed
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2-Chlorothiazole chemical structure, C3H2ClNS, CAS 3034-52-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
3034-52-4
Formula
C3H2ClNS
Molar mass
119.58 g/mol
Physical form
Liquid
HS code
293410
Category
Heterocyclic building blocks
Illustrative photo, closed blue jerry cans in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is 2-Chlorothiazole?

Plain description, key identifiers and synonyms

2-chlorothiazole is an organochlorine compound and a member of 1,3-thiazoles.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-chloro-1,3-thiazole
CAS number
3034-52-4 CAS number cross-checked
EC number
221-228-9
Molecular formula
C3H2ClNS
UNII
TA2DNZ4W48
MDL number
MFCD00210701
InChIKey
KLEYVGWAORGTIT-UHFFFAOYSA-N
InChI
InChI=1S/C3H2ClNS/c4-3-5-1-2-6-3/h1-2H
SMILES (canonical and isomeric)
C1=CSC(=N1)Cl

Synonyms

  • 2-chloro-1,3-thiazole
  • Thiazole, 2-chloro-
  • 2-Thiazolyl Chloride
  • 2-Chlothiozole
  • chlorothiazole
  • 2-chloro-thiazole
  • 2-Chlorothiazole, 96%

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Physical form
Liquidexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
119.58 g/molcalc.
Exact mass
118.9596 Dacalc.
LogP (octanol/water)
1.8calc.
Topological polar surface area
12.89 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
6calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1cscn1

c1cscn1

1 ring, 5 atoms, the Thiazole ring system.

16,016 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H226Flammable liquid and vapour.
  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H318Causes serious eye damage.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (30)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

2-Chlorothiazole suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 11 suppliers
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Where suppliers are based

11 suppliers in 2 countries

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2-Chlorothiazole price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 2-Chlorothiazole is traded under.

HS 2934.10Indicative HS code

Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the…

World exports in 2024
$3.88B
−16.1% vs 2023, imports $3.12B
2019 to 2024
Top exporters
  1. Switzerland * partner reported36.4%
  2. Ireland28.8%
  3. China10.0%
Top importers
  1. Canada33.4%
  2. United States14.4%
  3. Ireland13.1%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for 2-Chlorothiazole is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 2-Chlorothiazole, based on the data on this page

What is 2-Chlorothiazole?

2-chlorothiazole is an organochlorine compound and a member of 1,3-thiazoles.

What is the CAS number of 2-Chlorothiazole?

The CAS registry number of 2-Chlorothiazole is 3034-52-4.

What is the molecular formula and weight of 2-Chlorothiazole?

The molecular formula of 2-Chlorothiazole is C3H2ClNS and its molar mass is 119.58 g/mol.

What is 2-Chlorothiazole used for?

Known uses and roles of 2-Chlorothiazole include building blocks in research and laboratory and screening compounds in research and laboratory.

Is 2-Chlorothiazole hazardous?

2-Chlorothiazole carries the GHS signal word "Danger". Main hazards: flammable liquid and vapour, harmful if swallowed, causes skin irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 2-Chlorothiazole?

2-Chlorothiazole is usually classified under HS code 293410 (Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 2-Chlorothiazole?

CompoundList lists 11 suppliers of 2-Chlorothiazole in United States and China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 2-Chlorothiazole?

Suppliers quote 2-Chlorothiazole on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 2-Chlorothiazole

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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