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    13091-23-1

    Catalog No. EBD574586

    CAS 13091-23-1

    Name 4-Chloro-3-nitropyridine

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    Basic Information

    Synonyms: 4-Chlor-3-nitropyridine Pyridine,4-chloro-3-nitro- 4-chloro-3-nitro-pyridine 3-nitro-4-chloropyridine 4-chlor-3-nitro-pyridin 4-chloro-3-nitropyridine98% 4-chloro-3-nitropyridine4-chloro-3-nitropyridine 4-chloro-3-nitropyridine,95%,maycont.variableamountsofoligomers 4-chloro-3-nitropyridine,maycont.variableamountsofoligomers 4-chloro-3-nitropyridine,tech. 4-Chloro-3-nitropyridine

    Molecular Formula: C5H3ClN2O2

    Molecular Weight: 158.54

    MDL Number: MFCD02683025

    Categories: Medicinal Chemistry > Pharmaceutical Intermediates > Heterocyclic Intermediates Synthetic Chemistry > Organic Building Blocks > Halogenated Compounds

    Product Description:
    4-Chloro-3-nitropyridine is a heterocyclic aromatic compound featuring a pyridine ring substituted with a chlorine atom at the 4-position and a nitro group at the 3-position. It is a pale yellow to yellow crystalline solid. The molecule serves as a versatile bifunctional building block, where the chlorine atom is susceptible to nucleophilic aromatic substitution (SNAr) reactions, and the nitro group can be reduced to an amine or participate in other transformations. Its primary and most significant application is as a key pharmaceutical intermediate. It is extensively used in the synthesis of various biologically active molecules, particularly in the development of kinase inhibitors and other drug candidates. For instance, it is a crucial precursor in the synthesis of the anti-cancer drug Crizotinib and other c-Met inhibitors. The compound's reactivity allows for the sequential introduction of different functional groups, enabling the construction of complex medicinal chemistry scaffolds. As a halogenated nitroheterocycle, it requires careful handling due to its potential toxicity and irritant properties. It is typically stored under inert conditions and away from strong reducing agents. Its dual functionality makes it a valuable and widely used reagent in both medicinal chemistry research and process development for active pharmaceutical ingredients (APIs).
    Physical Properties

    Melting Point: 35-50 °C

    Boiling Point: 246.5 °C at 760 mmHg

    Flash Point: 102.9 °C

    Density: 1.489 g/cm3

    Storage: −20°C

    Safety Information

    Packing Level: III

    Hazard Category: 6.1

    Transport Codes: 2811

    Analytical Data

    Appearance: Snuff color to brown powder

    mg g kg ml l t