3,6-Dichloropyridazine-4-carboxylic acid
3,6-Dichloropyridazine-4-carboxylic acid (CAS 51149-08-7) is a halogenated heterocyclic compound with the molecular formula C5H2Cl2N2O2 and a molecular weight of 192.99 g/mol. This chemical serves as a valuable building block in organic synthesis. It is specifically utilised in the preparation of complex molecules, including α-(halohetaroyl)-2-azahetarylacetonitriles, contributing to advancements in chemical research and development. Supplied by Tech Serve Solutions with an assay of 98%.
- Synonyms
- C5H2Cl2N2O2

Synthesis of Heterocyclic Compounds
3,6-Dichloropyridazine-4-carboxylic acid is employed as a key intermediate in the synthesis of more complex heterocyclic structures. Its reactive sites allow for diverse chemical transformations.
Intermediate for Specialty Chemicals
The compound has been documented for its use in preparing specific organic molecules, such as α-(halohetaroyl)-2-azahetarylacetonitriles, aiding in the development of novel chemical entities.
Research and Development
As a versatile building block, it is utilised in research laboratories for exploring new synthetic pathways and developing novel materials or pharmaceutical intermediates.
| Molecular weight | 192.99 |
|---|---|
| Empirical formula | C5H2Cl2N2O2 |
| Assay | 98% |
| Application | 3,6-Dichloropyridazine-4-carboxylic acid has been used in the synthesis of α-(halohetaroyl)-2-azahetarylacetonitriles1. |
| Melting point | 142 °C (dec.)(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) | 3 |
| 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 3,6-Dichloropyridazine-4-carboxylic acid used for?
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3,6-Dichloropyridazine-4-carboxylic acid is used as a building block in chemical synthesis, particularly noted for its application in the synthesis of α-(halohetaroyl)-2-azahetarylacetonitriles.
What is the CAS number and chemical formula?
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The CAS number for 3,6-Dichloropyridazine-4-carboxylic acid is 51149-08-7. Its empirical formula (Hill notation) is C5H2Cl2N2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,6-Dichloropyridazine-4-carboxylic acid with an assay of 98%. This product is intended for research and chemical synthesis purposes and is not supplied as USP, BP, EP, or any other pharmacopoeia grade.
What are the primary safety concerns when handling this chemical?
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This compound carries a Warning signal word and has hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves, should be used. Handle in a well-ventilated area.
How is this chemical packed and shipped by TSS?
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Tech Serve Solutions packages and exports fine chemicals with careful consideration for product integrity and international shipping regulations. Specific packaging details are available upon request for bulk or export orders.
How can I request a sample or quote?
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To request a sample or obtain a quotation for 3,6-Dichloropyridazine-4-carboxylic acid, please contact our sales department through the website or by direct inquiry.
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