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    ChemicalBook >> CAS DataBase List >>2,5-Dibromopyridine


    CAS No.
    Chemical Name:
    Dibromopyridine;NSC 76597;5-DibroMopyridine;2,5-Dibrompyridin;2,5-dibromopyridin;2,5 dibromopyrdine;3,6-DibroMopyridine;2,5-DIBROMOPYRIDINE;2,5 Di bromo pyridne;Perampanel Impurity 9
    Molecular Formula:
    Molecular Weight:
    MDL Number:
    MOL File:
    MSDS File:
    Last updated:2023-11-17 18:01:30

    2,5-Dibromopyridine Properties

    Melting point 92-95 °C (lit.)
    Boiling point 235 °C / 772mmHg
    Density 2.0383 (rough estimate)
    refractive index 1.5800 (estimate)
    Flash point 62℃
    storage temp. Inert atmosphere,Room Temperature
    solubility Chloroform (Slightly), Methanol (Slightly)
    form Crystalline Powder
    pka -1.57±0.10(Predicted)
    color Almost white or light beige to brown
    Water Solubility insoluble
    BRN 109099
    InChI InChI=1S/C5H3Br2N/c6-4-1-2-5(7)8-3-4/h1-3H
    SMILES C1(Br)=NC=C(Br)C=C1
    CAS DataBase Reference 624-28-2(CAS DataBase Reference)


    Risk and Safety Statements

    Symbol(GHS)  GHS hazard pictograms
    Signal word  Warning
    Hazard statements  H335-H302+H312+H332-H315-H319
    Precautionary statements  P280a-P304+P340-P305+P351+P338-P405-P501a-P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312+P362+P364-P304+P340+P312-P305+P351+P338+P337+P313-P501
    Hazard Codes  Xi,Xn
    Risk Statements  36/37/38-20/21/22
    Safety Statements  26-37/39-36/37/39-36
    RIDADR  UN2811
    WGK Germany  3
    HazardClass  IRRITANT
    HS Code  29333999
    NFPA 704
    2 0

    2,5-Dibromopyridine price More Price(49)

    Manufacturer Product number Product description CAS number Packaging Price Updated Buy
    Sigma-Aldrich D43107 2,5-Dibromopyridine 98% 624-28-2 10g $93.1 2023-06-20 Buy
    TCI Chemical D1217 2,5-Dibromopyridine >99.0%(GC) 624-28-2 5g $24 2023-06-20 Buy
    TCI Chemical D1217 2,5-Dibromopyridine >99.0%(GC) 624-28-2 25g $66 2023-06-20 Buy
    Alfa Aesar A10937 2,5-Dibromopyridine, 97% 624-28-2 10g $78 2023-06-20 Buy
    Alfa Aesar A10937 2,5-Dibromopyridine, 97% 624-28-2 50g $286 2023-06-20 Buy
    Product number Packaging Price Buy
    D43107 10g $93.1 Buy
    D1217 5g $24 Buy
    D1217 25g $66 Buy
    A10937 10g $78 Buy
    A10937 50g $286 Buy

    2,5-Dibromopyridine Chemical Properties,Uses,Production

    Chemical Properties

    2,5-Dibromopyridine is an off-white crystalline solid. It is insoluble in water but soluble in strong polar organic solvents. It exhibits strong alkalinity.


    2,5-Dibromopyridine (cas# 624-28-2) is a compound useful in organic synthesis.


    To synthesize 2,5-dibromopyridine, follow these steps:
    Add 2-amino-5-bromopyridine (13.0 kg) into a water-cooled solution at 10 °C.
    Slowly add 47% aqueous hydrogen bromide (37 L) to the mixture.
    Introduce liquid bromine (11 L) into the mixture.
    Maintain the reaction temperature below 10 °C.
    Prepare a solution of NaNO2 (16.1 kg) and H2O (19 L) and add it dropwise to the mixture while keeping the temperature between 0-5 °C.
    Stir the reaction mixture for 30 minutes.
    Treat the mixture with a solution of NaOH (28.0 kg) in water (30 L) at a controlled rate below 20-25 °C.
    Extract the reaction mixture with diethyl ether (3 × 40 L).
    Dry the organic layer with anhydrous Na2SO4.
    Remove the desiccant by filtration.
    Evaporate the resulting filtrate under reduced pressure to dryness.
    Suspend the residue in heptane (10 L).
    Collect the target product molecule, 2,5-dibromopyridine, by filtration.
    Synthesis method of 2,5-dibromopyridine

    Synthesis of 2,5-Dibromopyridine from 2-Hydroxy-5-bromopyridine
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    View Lastest Price from 2,5-Dibromopyridine manufacturers

    Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
    2,5-Dibromopyridine pictures 2023-11-18 2,5-Dibromopyridine
    US $136.00 / kg 1kg 0.99 100kg Shanghai UCHEM Inc.
    2,5-Dibromopyridine pictures 2023-09-12 2,5-Dibromopyridine
    US $0.00 / KG 1KG 99% 50000KG/month Hebei Mojin Biotechnology Co., Ltd
    2,5-Dibromopyridine pictures 2022-09-28 2,5-Dibromopyridine
    US $0.00-0.00 / kg 1kg 98% 1Ton Henan Aochuang Chemical Co.,Ltd.
    2,5-DIBROMOPYRIDINE PYRIDINE, 2,5-DIBROMO- 2,5-Dibromopyridine, 97+% 2,5-dibromopyridin 2,5-DIBROMOPYRIDINE 2,5-DIBROMOPYRIDINE 2,5-Dibromo pyridine ,98% 2,5-DibroMopyridine, 97% 10GR 3,6-DibroMopyridine NSC 76597 5-DibroMopyridine 2, 5-2 broMide pyridine 2,5 Di bromo pyridne 2,5-Dibromopyridine > Perampanel Impurity 9 2,5-Dibromopyridine ISO 9001:2015 REACH 2,5-Dibrompyridin 2,5 dibromopyrdine Hot Sale?2, 5-Dibromopyridine CAS?624-28-2?with Best Price Dibromopyridine Pyronoprene Impurity 17 Nicotinic Acid Impurity 13 624-28-2 324-28-2 Building Blocks Pyridines Halogenated Heterocycles Heterocyclic Building Blocks Bromopyridines Halopyridines alkyl bromide Building Blocks C5 Chemical Synthesis Halogenated Heterocycles Heterocyclic Building Blocks Brominated heterocyclic series Aromatics Bases & Related Reagents Nucleotides Aromatics Compounds Bromopyridines Halopyridines Pyridine series C5Heterocyclic Building Blocks Halogenated Heterocycles Heterocyclic Building Blocks Nitrogen cyclic compounds blocks Bromides Pyridines pyridine derivative Pyridines, Pyrimidines, Purines and Pteredines Halides Pyridine Pyridines derivates bc0001 624-28-2
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