2-Chloro-4-iodobenzoic acid
2-Chloro-4-iodobenzoic acid (CAS: 145343-76-6), with the empirical formula C7H4ClIO2 and a molecular weight of 282.46 g/mol, is a specialised organic compound. It functions as a valuable building block in organic synthesis, particularly within the pharmaceutical and agrochemical industries. Its structure, featuring both halogen substituents and a carboxylic acid group, allows for diverse chemical transformations, making it a key intermediate in the creation of more complex molecules.

Pharmaceutical Intermediate
Serves as a crucial precursor in the multi-step synthesis of active pharmaceutical ingredients (APIs), leveraging its functional groups for complex molecular assembly.
Agrochemical Development
Utilised in the research and development of novel pesticides and herbicides, contributing to the creation of targeted crop protection agents.
Organic Synthesis Reagent
A versatile building block for academic and industrial research, enabling the exploration of new synthetic pathways and the construction of novel organic compounds.
| Molecular weight | 282.46 |
|---|---|
| Empirical formula | C7H4ClIO2 |
| Assay | 96% |
| Melting point | 166-170 °C |



Hazard statements
- H301Toxic if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
- H400Very toxic to aquatic life
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1/PG 3 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 25-37/38-41-50/53 |
| Safety statements (S) | 26-36/37-45-60-61 |
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 2-Chloro-4-iodobenzoic acid used for?
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2-Chloro-4-iodobenzoic acid is primarily used as a building block in organic synthesis, notably for the development of pharmaceuticals and agrochemicals.
What are the CAS number and formula for 2-Chloro-4-iodobenzoic acid?
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The CAS number is 145343-76-6 and the empirical formula is C7H4ClIO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Chloro-4-iodobenzoic acid with an assay of 96%. We do not represent this product as USP, BP, or EP grade; it is supplied for research and industrial applications.
What are the main safety hazards associated with 2-Chloro-4-iodobenzoic acid?
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This compound is classified with GHS05, GHS06, and GHS09 symbols, indicating it is corrosive, toxic if swallowed, and very toxic to aquatic life. It requires careful handling with appropriate personal protective equipment, including eyeshields, faceshields, gloves, and respiratory protection.
How is 2-Chloro-4-iodobenzoic acid packed and shipped?
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2-Chloro-4-iodobenzoic acid is packed and shipped in compliance with regulations for hazardous materials, including UN 2811 classification (Toxic Solid, Organic, N.O.S.). TSS exports globally.
How can I request a sample or quote for 2-Chloro-4-iodobenzoic acid?
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To request a sample or a quotation for 2-Chloro-4-iodobenzoic acid, please contact the Tech Serve Solutions sales team through our website or by phone.
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