5-Thiazolecarboxaldehyde
5-Thiazolecarboxaldehyde (CAS: 1003-32-3, Formula: C4H3NOS) is a heterocyclic aldehyde with a molecular weight of 113.14 g/mol. This organic building block is characterised by its thiazole ring and aldehyde functional group, making it a valuable intermediate in organic synthesis. It finds utility in the development of novel compounds for various research and development applications within the chemical and pharmaceutical sectors.

Intermediate in Organic Synthesis
5-Thiazolecarboxaldehyde serves as a versatile building block in the construction of more complex organic molecules. Its reactive aldehyde group and heterocyclic thiazole core allow for diverse chemical transformations.
Pharmaceutical Research
This compound is employed in medicinal chemistry for the synthesis of potential drug candidates. The thiazole moiety is present in numerous biologically active molecules, underscoring its importance in pharmaceutical research.
Agrochemical Development
5-Thiazolecarboxaldehyde can be utilised in the exploration and synthesis of novel agrochemicals. Its structural features may contribute to the development of compounds with desired pesticidal or herbicidal activities.
Material Science
The unique electronic and structural properties of thiazole derivatives make them interesting for applications in material science, including the development of functional polymers and organic electronic materials.
| Molecular weight | 113.14 |
|---|---|
| Empirical formula | C4H3NOS |
| Assay | 95% |
| Boiling point | 92-94 °C/16 mmHg |
| Density | 1.304 g/mL at 25 °C |
| Refractive index | n20/D 1.5874 |

Hazard statements
- H302Harmful if swallowed
- H317May cause an allergic skin reaction
- H319Causes serious eye irritation
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Flash point | 98 °C / 208.4 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36-43 |
| Safety statements (S) | 26-36/37 |
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 5-Thiazolecarboxaldehyde used for?
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5-Thiazolecarboxaldehyde is primarily used as an intermediate in organic synthesis, particularly in pharmaceutical and agrochemical research and development, and potentially in material science.
What are the CAS number and formula for 5-Thiazolecarboxaldehyde?
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The CAS number is 1003-32-3 and the empirical formula is C4H3NOS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Thiazolecarboxaldehyde with an assay of 95%. We do not represent this product as USP, BP, or EP grade.
How should 5-Thiazolecarboxaldehyde be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (N95 US), eyeshields, face shields, and gloves. Avoid breathing dust/fume/gas/mist/vapours/spray. Wash skin thoroughly after handling. It is harmful if swallowed, causes skin irritation, and serious eye irritation.
Is 5-Thiazolecarboxaldehyde available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 5-Thiazolecarboxaldehyde.
How can I request a sample or quote for 5-Thiazolecarboxaldehyde?
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Please contact our sales team via the website or by phone to request a sample or a formal quotation.
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