4-Pyridazinecarboxylic acid
4-Pyridazinecarboxylic acid (CAS: 50681-25-9, Formula: C5H4N2O2) is a heterocyclic organic compound with a molecular weight of 124.10 g/mol. This compound serves as a valuable building block in chemical synthesis, particularly for the creation of complex heterocyclic structures. It is supplied by Tech Serve Solutions with an assay of 97%, suitable for research and development applications within the chemical and pharmaceutical industries.

Heterocyclic Synthesis
Utilised as a key intermediate in the synthesis of novel heterocyclic compounds. Its pyridazine core allows for diverse chemical modifications and functionalisation, enabling the development of new molecular architectures.
Pharmaceutical Intermediates
Serves as a building block in the development of potential pharmaceutical agents. The pyridazine moiety is found in various biologically active molecules, making this acid a target for medicinal chemistry research.
Organic Synthesis Research
Employed in academic and industrial research laboratories for exploring new synthetic pathways and methodologies. It provides a functionalised pyridazine scaffold for various organic transformations.
| Molecular weight | 124.10 |
|---|---|
| Empirical formula | C5H4N2O2 |
| Assay | 97% |
| Melting point | 244.2 °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 4-Pyridazinecarboxylic acid used for?
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4-Pyridazinecarboxylic acid is primarily used as a building block in chemical synthesis, particularly for creating heterocyclic structures and as an intermediate in pharmaceutical research.
What are the CAS number and formula for 4-Pyridazinecarboxylic acid?
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The CAS number for 4-Pyridazinecarboxylic acid is 50681-25-9, and its molecular formula is C5H4N2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Pyridazinecarboxylic acid with a purity of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeial grade.
How should 4-Pyridazinecarboxylic acid be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 recommended), eyeshields, and gloves. Ensure adequate ventilation and avoid inhaling dust. Refer to the Safety Data Sheet for comprehensive handling information, as it may cause skin, eye, and respiratory irritation (H315, H319, H335).
Is 4-Pyridazinecarboxylic acid a controlled substance?
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Based on the provided data, there is no indication that 4-Pyridazinecarboxylic acid is a controlled substance.
How is 4-Pyridazinecarboxylic acid packed, shipped, and exported?
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Products are carefully packed to ensure integrity during transit. Tech Serve Solutions is a global supplier and exporter of fine chemicals, pharmaceutical intermediates, and laboratory reagents.
How can I request a sample or quote for 4-Pyridazinecarboxylic acid?
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Please contact our sales team directly via the website or by phone to request a sample or obtain a quotation for 4-Pyridazinecarboxylic acid.
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