Pyridazine
Pyridazine (CAS: 289-80-5) is a heterocyclic aromatic organic compound with the formula C4H4N2 and a molecular weight of 80.09 g/mol. This versatile chemical serves as a crucial building block in organic synthesis, particularly for the development of novel pharmaceuticals and agrochemicals. Its unique structural motif makes it valuable in creating more complex heterocyclic systems. TSS supplies Pyridazine with a guaranteed minimum assay of 98%.

Pharmaceutical Intermediate
Pyridazine is a key intermediate in the synthesis of various pharmaceutical agents. Its nitrogen-containing heterocyclic ring is a common feature in many biologically active molecules, enabling the development of new therapeutic compounds.
Agrochemical Development
This compound is utilised in the research and development of new agrochemicals. The pyridazine core can be incorporated into molecules designed for crop protection, contributing to the efficacy of herbicides, insecticides, and fungicides.
Organic Synthesis
As a fundamental building block, Pyridazine is employed in diverse organic synthesis pathways. It allows chemists to construct more complex molecular architectures and explore novel chemical reactions.
| Molecular weight | 80.09 |
|---|---|
| Empirical formula | C4H4N2 |
| Assay | 98% |
| Boiling point | 208 °C(lit.) |
| Density | 1.103 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.524(lit.) |
| Melting point | −8 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | 85 °C / 185 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 3 |
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 Pyridazine used for?
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Pyridazine is primarily used as a building block in organic synthesis, with significant applications in the development of pharmaceuticals and agrochemicals. It is also used in chemical research.
What are the CAS number and formula for Pyridazine?
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The CAS number for Pyridazine is 289-80-5, and its molecular formula is C4H4N2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Pyridazine with a minimum assay of 98%. This product is not tested or graded for pharmacopoeia standards such as USP, BP, or EP.
How should Pyridazine be handled and stored?
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Pyridazine is a combustible liquid with a flash point of 85°C. Handle with appropriate personal protective equipment, including eyeshields and gloves. Ensure adequate ventilation and store away from ignition sources in a cool, dry place.
Is Pyridazine a controlled substance?
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The provided data does not indicate that Pyridazine (CAS: 289-80-5) is a controlled substance.
How can I request a quote or sample of Pyridazine?
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To request a quote or a sample of Pyridazine, please contact our sales team through the website or by phone. We regularly export fine chemicals globally.
What are the shipping and packaging details for Pyridazine?
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Pyridazine is classified under NA 1993 / PGIII for transport. It is available for global export, and specific packaging details can be provided upon request.
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