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5788-58-9 - 4,5-Dibromo-3(2H)-pyridazinone, 98% - A15994 - Alfa Aesar

A15994 4,5-Dibromo-3(2H)-pyridazinone, 98%

CAS Number

Size Price ($) Quantity Availability
5g 106,00
25g 404,00
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4,5-Dibromo-3(2H)-pyridazinone, 98%


Chemical Properties

Formula Weight
Melting point
ca 220° dec.


4,5-Dibromo-3(2H)-pyridazinone is used as an intermediate in the manufacture of pharmaceuticals. It is widely used in chemical research and in fine chemicals.


Incompatible with strong oxidizing agents.

Literature References

Gribov, L. A.; Baranov, V. I.; Poteshnyi, D. I. Computational comparison of theoretical and experimental molecular spectra using an integral transformation in solving analytical problems. J. Anal. Chem. 2011, 66 (2), 116-122.

Pereira, U. A.; Barbosa, L. C. A.; Demuner, A. J.; Silva, A. A.; Bertazzini, M.; Forlani, G. Rubrolides as Model for the Development of New Lactones and Their Aza Analogs as Potential Photosynthesis Inhibitors. Chem. Biodivers. 2015, 12 (7), 987-1006.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Harmonized Tariff Code


  • A12757

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  • H32924

    Ethyl oxazole-5-carboxylate, 98%
  • 40120

    Hydrazine sulfate, ACS, 99.0% min
  • H60062

    (R)-N-Boc-2-hydroxymethylmorpholine, 99%
  • H60680

    (S)-N-Boc-2-hydroxymethylmorpholine, 98%

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