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Quinaldine

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Quinaldine Basic information
Quinaldine Chemical Properties
  • Melting point:-2 °C
  • Boiling point:248 °C
  • Density 1.058 g/mL at 25 °C(lit.)
  • vapor pressure <0.1 hPa (20 °C)
  • refractive index n20/D 1.612(lit.)
  • Flash point:175 °F
  • storage temp. Store below +30°C.
  • solubility chloroform: soluble(lit.)
  • pka5.83(at 20℃)
  • form Crystalline Powder
  • color White to slightly yellow
  • PH6.9 (H2O, 20℃)(saturated aqueous solution)
  • Water Solubility PRACTICALLY INSOLUBLE
  • Sensitive Light Sensitive
  • Merck 14,8047
  • BRN 110309
  • Stability:Stable, but may be light sensitive. Combustible. Incompatible with strong oxidizing agents.
  • CAS DataBase Reference91-63-4(CAS DataBase Reference)
  • NIST Chemistry ReferenceQuinoline, 2-methyl-(91-63-4)
  • EPA Substance Registry SystemQuinaldine (91-63-4)
Safety Information
  • Hazard Codes Xn
  • Risk Statements 21/22-68-36/37/38
  • Safety Statements 36-45-36/37/39-26
  • RIDADR NA 1993 / PGIII
  • WGK Germany 3
  • RTECS UZ9625000
  • 8-23
  • TSCA Yes
  • HS Code 29334990
  • ToxicityLD50 orally in rats: 1.23 g/kg (Smyth)
MSDS
Quinaldine Usage And Synthesis
  • Chemical Propertiesyellowish-brown liquid
  • UsesA useful ingredient in anti-malaria drugs, in manufacturing dyes, food colorants , pharmaceuticals and pH indicators.
  • DefinitionChEBI: A quinoline compound in which the quinoline skeleton is substituted at C-2 with a methyl group.
  • Synthesis Reference(s)Journal of Heterocyclic Chemistry, 13, p. 1279, 1976 DOI: 10.1002/jhet.5570130626
    The Journal of Organic Chemistry, 52, p. 3847, 1987 DOI: 10.1021/jo00226a023
    Synthesis, p. 324, 1996
  • General DescriptionA colorless oily liquid darkening to red-brown on exposure to air. Flash point 175°F. Denser than water and slightly soluble in water. Vapors heavier than air. Produces toxic oxides of nitrogen during combustion. Used to make dyes, pharmaceuticals and other chemicals.
  • Air & Water ReactionsSlightly soluble in water.
  • Reactivity ProfileQuinaldine neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides. Keep tightly closed and protected from light .
  • HazardStrong irritant to mucous membranes.
  • Fire HazardQuinaldine is probably combustible.
  • Purification MethodsDry it with Na2SO4 or by refluxing with BaO, then fractionally distil it under reduced pressure and redistil it from zinc dust. Purify it further by conversion to its phosphate (m 220o) or picrate (m 192o) from which after recrystallisation, the free base is regenerated. [Packer et al. J Am Chem Soc 80 905 1958.] Its ZnCl2 complex can be used for the same purpose. [Beilstein 20 III/IV 3454, 20 V 375.]
Quinaldine Preparation Products And Raw materials
Quinaldine(91-63-4)Related Product Information
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