2,3-Dichlorobenzoic acid
2,3-Dichlorobenzoic acid (CAS: 50-45-3), with the molecular formula Cl2C6H3CO2H and a molecular weight of 191.01 g/mol, is a specialised organic compound. It serves as a key building block and intermediate in organic synthesis. Utilised in chemical research and development, it is particularly valuable for constructing more complex molecules within the pharmaceutical and chemical industries. Its distinct dichlorination pattern makes it a useful starting material for various chemical transformations.
- Synonyms
- Cl2C6H3CO2H

Organic Synthesis Intermediate
2,3-Dichlorobenzoic acid is employed as a crucial intermediate in multi-step organic syntheses. Its structure allows for further functionalisation, making it valuable for creating novel compounds and complex molecular architectures.
Chemical Research and Development
This compound finds application in academic and industrial research laboratories. It is used in exploring new synthetic pathways and developing innovative chemical entities.
Building Block for Pharmaceuticals
It acts as a foundational building block in the synthesis of active pharmaceutical ingredients (APIs). The specific arrangement of chlorine atoms and the carboxylic acid group facilitate targeted molecular design.
| Molecular weight | 191.01 |
|---|---|
| Linear formula | Cl2C6H3CO2H |
| Assay | 97% |
| Melting point | 168-170 °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 | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
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 2,3-Dichlorobenzoic acid used for?
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2,3-Dichlorobenzoic acid is primarily used as a building block and intermediate in organic synthesis, particularly in chemical research and the development of pharmaceuticals.
What are the CAS number and formula for 2,3-Dichlorobenzoic acid?
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The CAS number is 50-45-3 and the linear formula is Cl2C6H3CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,3-Dichlorobenzoic acid with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 2,3-Dichlorobenzoic acid be handled?
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Handle with care. This compound is a warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including dust mask type N95 (US), eyeshields, and gloves, should be used. Ensure good ventilation.
How is 2,3-Dichlorobenzoic acid packed and shipped?
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2,3-Dichlorobenzoic acid is available for export globally by Tech Serve Solutions. Specific packaging details can be provided upon request.
How can I request a quote or sample?
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To request a quote or sample of 2,3-Dichlorobenzoic acid, please contact our sales team through the website or by phone.
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