4-(4-Chlorophenyl)-2-hydroxythiazole
4-(4-Chlorophenyl)-2-hydroxythiazole (CAS 2103-98-2) is a halogenated heterocyclic compound with the molecular formula C9H6ClNOS and a molecular weight of 211.67 g/mol. Supplied at 97% purity, this chemical building block is valuable in synthetic organic chemistry. Its structure, featuring a thiazole ring substituted with a chlorophenyl group, makes it a useful intermediate for creating more complex molecules, particularly in research and development settings within the pharmaceutical and agrochemical industries.
- IUPAC
- 4-(4-Chlorophenyl)-2-thiazolol

Pharmaceutical Intermediate
This compound serves as a key building block in the synthesis of novel pharmaceutical agents. Its heterocyclic and halogenated nature allows for versatile functionalisation in drug discovery programs.
Agrochemical Research
Utilised in the development of new pesticides and herbicides, its structural motif can be incorporated into molecules designed for agricultural applications.
Organic Synthesis
As a versatile chemical reagent, it is employed in various organic transformations and the construction of complex molecular architectures in academic and industrial research.
| Molecular weight | 211.67 |
|---|---|
| Empirical formula | C9H6ClNOS |
| Assay | 97% |
| Melting point | 222-226 °C |


Hazard statements
- H301Toxic if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38-41 |
| Safety statements (S) | 26-36/37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4-(4-Chlorophenyl)-2-hydroxythiazole used for?
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4-(4-Chlorophenyl)-2-hydroxythiazole is primarily used as a building block in organic synthesis, particularly in the development of pharmaceutical and agrochemical compounds. Its utility lies in its heterocyclic structure featuring a chlorophenyl substituent, enabling further chemical modifications.
What is the CAS number and formula for 4-(4-Chlorophenyl)-2-hydroxythiazole?
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The CAS number for 4-(4-Chlorophenyl)-2-hydroxythiazole is 2103-98-2. Its empirical formula is C9H6ClNOS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-(4-Chlorophenyl)-2-hydroxythiazole at an assay of 97%. We do not represent this product as USP, BP, or EP grade.
What are the safety considerations for handling 4-(4-Chlorophenyl)-2-hydroxythiazole?
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This compound is classified with Danger signal word, with hazards including H301 (Toxic if swallowed), H315 (Causes skin irritation), H318 (Causes serious eye damage), and H335 (May cause respiratory irritation). Appropriate personal protective equipment, including a dust mask (type N95 or equivalent), eyeshields, face shields, and gloves, is essential. Ensure adequate ventilation and handle in accordance with safety data sheet recommendations.
How is 4-(4-Chlorophenyl)-2-hydroxythiazole packed and shipped?
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As a chemical supplier, Tech Serve Solutions ensures appropriate packaging for safe transport and export, adhering to international regulations such as UN 2811 6.1 / PGIII for hazardous materials.
How can I request a sample or quote for 4-(4-Chlorophenyl)-2-hydroxythiazole?
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To request a sample or obtain a quotation for 4-(4-Chlorophenyl)-2-hydroxythiazole, please contact our sales department via the website or direct email, specifying the product CAS number (2103-98-2) and your required quantity.
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