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4-Chloro-1-butene (CAS NO.: 927-73-1)

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4-Chloro-1-butene (CAS NO.: 927-73-1)

4-Chloro-1-butene (CAS NO.: 927-73-1)

CAS NO.: 927-73-1

Content:98.00%

Application: Used as an intermediate in the synthesis of pharmaceuticals and active pharmaceutical ingredients (APIs).

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Descripción

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4-Chloro-1-butene (also known as 1-Chloro-3-butene, 3-Butenyl chloride, or Allylcarbinyl chloride) CAS No.: 927-73-1 , with the chemical formula C₄H₇Cl and a molecular weight of 90.55 g/mol. It is a clear colorless to light yellow liquid. This compound belongs to the class of alkyl halides (chloroalkenes) and is primarily used in organic synthesis and as a reagent, though it is subject to safety regulations due to its flammable and irritant properties.

Propiedades

4-Chloro-1-butene exhibits the following key physical and chemical properties:

  • Estado físico: Líquido (a temperatura ambiente).
  • Apariencia: Clear colorless to light yellow liquid.
  • Olor: No information available.
  • Punto de fusión: -96 °C (estimate).
  • Punto de ebullición: 73-75 °C.
  • Densidad: 0.896-0.921 g/mL (at 25 °C).
  • Solubilidad: No specific data available; likely insoluble in water and soluble in organic solvents like ethanol and ether.
  • Estabilidad: Stable under normal conditions; incompatible with strong oxidizing agents; hazardous decomposition may produce toxic fumes.
  • Toxicidad: Moderately toxic; harmful if swallowed (acute oral toxicity Category 4); may cause skin and eye irritation, headache, dizziness, nausea, and vomiting upon inhalation.

Aplicaciones

The primary applications of 4-chloro-1-butene include:

  • Intermedio de síntesis orgánica: Used as an intermediate in the synthesis of pharmaceuticals and active pharmaceutical ingredients (APIs).
  • Reagent: Employed in organic synthesis to introduce chlorine into molecules and in various chemical reactions.
  • Otros: Involved in the production of agrochemicals and fine chemicals.

Clasificación

The following table outlines the classification of 4-chloro-1-butene based on chemical properties, uses, and regulations:

Tipo de clasificación Categoría específica Descripción
Clase química Alkyl Halide (Chloroalkene) An unsaturated chloroalkane, reactive in nucleophilic substitution reactions.
Clase de uso Organic Synthesis Reagent/Intermediate Primarily used as a reagent and intermediate in chemical synthesis.
Clase de peligro Flammable Liquid (UN 1993); Toxic Highly flammable (Category 2, H225, flash point -8 to -12 °C); harmful if swallowed (Acute Tox. 4, H302); skin irritant (H315), eye irritant (H319); Packing Group II/III.
Clase reglamentaria Sustancia química controlada (REACH, TSCA) Listed under US TSCA and EPA Substance Registry; subject to environmental and safety controls.

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