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1-Methyl-4-piperidone

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1-Methyl-4-piperidone Basic information
1-Methyl-4-piperidone Chemical Properties
  • Melting point:192-193 °C(Solv: ethyl acetate (141-78-6))
  • Boiling point:55-60 °C11 mm Hg(lit.)
  • Density 0.92 g/mL at 25 °C (lit.)
  • refractive index n20/D 1.460
  • Flash point:140 °F
  • storage temp. Store below +30°C.
  • pka8.02±0.20(Predicted)
  • form Liquid
  • Specific Gravity0.92
  • color Clear yellow to orange
  • PH12 (100g/l, H2O, 20℃)
  • Water Solubility MISCIBLE
  • Sensitive Air Sensitive
  • BRN 106924
  • CAS DataBase Reference1445-73-4(CAS DataBase Reference)
  • NIST Chemistry Reference4-Piperidinone, 1-methyl-(1445-73-4)
Safety Information
  • Hazard Codes C,Xi
  • Risk Statements 34-10-36/37/38
  • Safety Statements 23-24/25-37/39-26
  • RIDADR UN 1224 3/PG 3
  • WGK Germany 3
  • Hazard Note Irritant
  • HazardClass 3
  • PackingGroup III
  • HS Code 29333999
MSDS
1-Methyl-4-piperidone Usage And Synthesis
  • Chemical Propertiesclear yellow to orange liquid
  • Uses1-Methyl-4-piperidone, are widely used in artificial fibre industry. They are polymerizable and used as nylon precursors. They have excellent applications as solvents and as intermediates for organic synthesis. They are used in the aqueous carrier medium and amide penetrants in inks and water soluble paints.
  • Purification MethodsIt is best purified by fractional distillation The hydrochloride of the hydrate (4-diol) has m 94.7-95.5o, but the anhydrous hydrochloride which crystallises from CHCl3/Et2O has m 165-168o (164-167o) and can also be obtained by sublimation at 120o/2mm. The oxime has m 130-132o (from Me2CO). The methiodide crystallises from MeOH, the crystals with 1MeOH have m 189-190o, and the solvent-free iodide has m 202-204o(dec). [Lyle et al. J Org Chem 24 342 1959, Bowden & Greeen J Chem Soc 1164 1952, Tomita Yakugaku Zasshi (J Pharm Soc Japan) 71 1053 1951, Beilstein 21 IIII/IV 3183, 21/6 V 419.]
1-Methyl-4-piperidone Preparation Products And Raw materials
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