4-Methylpyridazine
4-Methylpyridazine (CAS: 1120-88-3), with the molecular formula C5H6N2 and a molecular weight of 94.11 g/mol, is a heterocyclic organic compound. It serves as a valuable building block in chemical synthesis, particularly for the creation of novel pyridazine derivatives. Its applications extend to the research and development of compounds structurally analogous to bipyridine cardiotonics. Supplied by Tech Serve Solutions, this reagent is available at a purity of 97%.

Synthesis of Pyridazine Derivatives
4-Methylpyridazine is utilised as a key intermediate in the synthesis of novel pyridazine compounds. These derivatives are often explored for their structural similarities to known bioactive molecules.
Cardiotonic Compound Research
This compound has been employed in the preparation of series of novel pyridazine derivatives related to bipyridine cardiotonics. This research contributes to the development of potential cardiovascular agents.
Heterocyclic Building Block
As a heterocyclic building block, 4-Methylpyridazine is instrumental in constructing complex organic molecules. Its structure lends itself to diverse synthetic transformations in organic chemistry.
| Molecular weight | 94.11 |
|---|---|
| Empirical formula | C5H6N2 |
| Assay | 97% |
| Boiling point | 98-100 °C/11 mmHg(lit.) |
| Density | 1.06 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.521(lit.) |
| Application | 4-Methylpyridazine was used in the preparation of series of novel pyridazine derivatives structurally related to bipyridine cardiotonics1. |

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 | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 106 °C / 222.8 °F |
| 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-Methylpyridazine used for?
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4-Methylpyridazine is primarily used as a building block in chemical synthesis, specifically for the preparation of novel pyridazine derivatives structurally related to bipyridine cardiotonics.
What are the CAS number and formula for 4-Methylpyridazine?
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The CAS number for 4-Methylpyridazine is 1120-88-3, and its molecular formula is C5H6N2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Methylpyridazine with an assay of 97%. This is a technical/research grade, and TSS does not represent it as USP, BP, or EP grade.
What are the primary safety concerns for handling 4-Methylpyridazine?
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4-Methylpyridazine is a warning compound (GHS07) and can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment, including eyeshields and gloves, should be used. Handle in a well-ventilated area or use respiratory protection.
How is 4-Methylpyridazine packed and shipped?
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4-Methylpyridazine is carefully packed to ensure stability during transit and is available for global export by Tech Serve Solutions.
How can I request a sample or quote for 4-Methylpyridazine?
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To request a sample or a quote for 4-Methylpyridazine, please contact the Tech Serve Solutions sales team through our website or by phone.
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