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1-Bromobutane (CAS NO. : 109-65-9)

1-Bromobutane (CAS NO. : 109-65-9)

NUMÉRO DE CAS : 109-65-9

Contenu:99.00%

Application : Utilisé comme agent d'alkylation dans la production de produits pharmaceutiques (par exemple, la procaïne et la tétracaïne), de produits agrochimiques et d'autres composés organiques ; précurseur des réactifs de Grignard et des organométalliques tels que le n-butyllithium.

Description

Aperçu du produit

1-Bromobutane (also known as n-Butyl Bromide or Butyl Bromide) CAS No.: 109-65-9 , with the chemical formula C₄H₉Br and a molecular weight of 137.02 g/mol. It is a colorless to light yellow liquid with a characteristic or pleasant odor. This compound belongs to the class of alkyl halides and is primarily used in organic synthesis and as a solvent, though it is flammable and subject to safety regulations due to its irritant and environmental properties.

Propriétés

1-Bromobutane exhibits the following key physical and chemical properties:

  • État physique: Liquide (à température ambiante).
  • Apparence: Liquide clair, incolore à jaune clair.
  • Odeur: Characteristic or pleasant odor.
  • Point de fusion: -112 °C.
  • Point d'ébullition: 101-102 °C.
  • Densité: 1.27 g/mL (at 25 °C).
  • Solubilité: Slightly soluble in water (0.6 g/L); miscible with organic solvents like ethanol, ether, and chloroform.
  • Stabilité: Stable under normal conditions; flammable with a flash point of 10-23 °C; incompatible with strong oxidants and strong bases.
  • Toxicité: Moderately toxic; LD50 oral in rat: 2761 mg/kg; causes irritation to skin, eyes, and respiratory tract; may cause respiratory irritation, headache, nausea; toxic to aquatic life with long-lasting effects.

Applications

The primary applications of 1-bromobutane include:

  • Intermédiaire de synthèse organique: Used as an alkylating agent in the production of pharmaceuticals (e.g., procaine and tetracaine), agrochemicals, and other organic compounds; precursor for Grignard reagents and organometallics like n-butyllithium.
  • Solvant: Employed for cleaning, degreasing, and extraction in industrial and laboratory processes.
  • Autres: Acts as a derivatization reagent for functional groups (e.g., amino acids to improve hydrophobicity); used as an internal standard in analytical techniques like gas chromatography for quantifying compounds in samples such as human urine.

Classification

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

Type de classification Catégorie spécifique Description
Classe chimique Alkyl Halide (Bromoalkane) A primary brominated alkane, reactive in nucleophilic substitution reactions (e.g., SN2).
Classe d'utilisation Organic Synthesis Reagent/Solvent Primarily an intermediate for chemical synthesis and cleaning/degreasing applications.
Classe de danger Flammable Liquid (UN 1126); Irritant Flammable (flash point 10-23 °C); irritating to skin, eyes, and respiratory system (GHS: H225, H315, H319, H335, H411); toxic to aquatic life; packing group II.
Classe réglementaire Produit chimique contrôlé (REACH, TSCA) Registered under EU REACH (EC 203-691-9) and US TSCA; subject to environmental release controls and hazardous substance regulations (WGK 2 in Germany).

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