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1 5-Dibromopentane (CAS NO.: 111-24-0)

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1,5-Dibromopentane

1 5-Dibromopentane (CAS NO.: 111-24-0)

CAS NO.: 111-24-0

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Descrição

Product Overview

1,5-Dibromopentane (also known as Pentamethylene dibromide or 1,5-Pentane dibromide) CAS No.: 111-24-0 , with the chemical formula C₅H₁₀Br₂ and a molecular weight of 229.94 g/mol. It is a clear colorless to yellow-brown liquid. This compound belongs to the class of alkyl halides and is primarily used in organic synthesis and as a reagent, though it is subject to safety regulations due to its irritant properties.

Properties

1,5-Dibromopentane exhibits the following key physical and chemical properties:

  • Physical State: Liquid.
  • Appearance: Clear colorless to yellow-brown liquid.
  • Odor: Not specified.
  • Melting Point: -34 °C (lit.).
  • Boiling Point: 110 °C/15 mmHg (lit.); approximately 224 °C at normal pressure.
  • Density: 1.688 g/mL at 25 °C (lit.).
  • Solubility: Soluble in chloroform and methanol (sparingly), insoluble in water.
  • Stability: Stable under normal conditions; incompatible with strong oxidizing agents.
  • Toxicity: Moderately toxic; causes skin and eye irritation; signal word “Warning”.

Aplicativos

The primary applications of 1,5-dibromopentane include:

  • Organic Synthesis Intermediate: Used in the preparation of 1,5-di-Grignard reagent and novel spirocyclic pyrrolidones; synthesis of N-alkylated piperidine and tetrahydrothiopyran; derivatives of 5-pyrazolones; O-alkylated phloroglucinol derivatives for dendrimers; intermediate for dezocine.
  • Growth Supplement: Acts as a growth supplement for Yarrowia lipolytica 3589, a tropical marine yeast.
  • Other: Used in various chemical reactions and as a reagent in laboratory settings.

Classificação

The following table outlines the classification of 1,5-dibromopentane based on chemical properties, uses, and regulations:

Classification Type Specific Category Description
Chemical Class Alkyl Halide (Dibromoalkane) An α,ω-dibromoalkane, reactive in nucleophilic substitution reactions.
Usage Class Organic Synthesis Reagent/Intermediate Primarily used as a synthesis intermediate and reagent in chemical reactions.
Hazard Class Irritant (GHS07) Warning; causes skin irritation (H315) and eye irritation (H319); Hazard Codes Xi, Xn.
Regulatory Class Controlled Chemical (REACH, TSCA) TSCA Yes; WGK Germany 3; HS Code 29033036; subject to environmental and safety controls.

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