3-Chlorobenzaldehyde
3-Chlorobenzaldehyde (CAS: 587-04-2, Formula: ClC6H4CHO) is a halogenated aromatic aldehyde with a molecular weight of 140.57. This compound serves as a crucial building block in organic synthesis. It is widely employed in the production of pharmaceuticals, agrochemicals, and various specialty chemicals. Its reactive aldehyde group and the presence of a chlorine atom on the benzene ring make it a versatile intermediate for introducing specific functionalities into target molecules.

Pharmaceutical Intermediates
3-Chlorobenzaldehyde is a key starting material or intermediate in the synthesis of various active pharmaceutical ingredients (APIs). Its structure allows for diverse chemical modifications to create complex drug molecules.
Agrochemical Synthesis
This compound is utilised in the development of new agrochemicals, including herbicides, insecticides, and fungicides. It contributes to the creation of molecules with specific biological activities for crop protection.
Dye and Pigment Production
The reactivity of 3-Chlorobenzaldehyde makes it suitable for use in the synthesis of certain dyes and pigments, where it can influence colour and stability properties.
Research and Development
As a versatile organic building block, it is frequently used in academic and industrial research laboratories for the exploration of novel chemical entities and synthetic pathways.
| Molecular weight | 140.57 |
|---|---|
| Linear formula | ClC6H4CHO |
| Assay | 97% |
| Boiling point | 213-214 °C(lit.) |
| Density | 1.241 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.563(lit.) |
| Melting point | 9-12 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 88 °C / 190.4 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 3-Chlorobenzaldehyde used for?
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3-Chlorobenzaldehyde is primarily used as a building block in organic synthesis, particularly for the production of pharmaceuticals, agrochemicals, dyes, and in research and development.
What are the CAS number and chemical formula for 3-Chlorobenzaldehyde?
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The CAS number for 3-Chlorobenzaldehyde is 587-04-2, and its chemical formula is ClC6H4CHO.
What grade and purity does Tech Serve Solutions supply for 3-Chlorobenzaldehyde?
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Tech Serve Solutions supplies 3-Chlorobenzaldehyde with an assay of 97%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade unless explicitly stated in the product specifications.
How should 3-Chlorobenzaldehyde be handled safely?
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3-Chlorobenzaldehyde is classified as a Warning substance (GHS07). It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Always use appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, and ensure good ventilation.
How is 3-Chlorobenzaldehyde packed and exported?
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As a specialist global supplier and exporter, Tech Serve Solutions ensures that 3-Chlorobenzaldehyde is appropriately packed and handled in compliance with international shipping regulations for chemical export.
How can I request a quote or sample of 3-Chlorobenzaldehyde?
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To request a quote or sample of 3-Chlorobenzaldehyde, please contact our sales team through the website or by phone, providing your details and requirements.
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