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).
Description
Product Overview
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.
Properties
4-Chloro-1-butene exhibits the following key physical and chemical properties:
- Physical State: Liquid (at room temperature).
- Appearance: Clear colorless to light yellow liquid.
- Odor: No information available.
- Melting Point: -96 °C (estimate).
- Boiling Point: 73-75 °C.
- Density: 0.896-0.921 g/mL (at 25 °C).
- Solubility: No specific data available; likely insoluble in water and soluble in organic solvents like ethanol and ether.
- Stability: Stable under normal conditions; incompatible with strong oxidizing agents; hazardous decomposition may produce toxic fumes.
- Toxicity: Moderately toxic; harmful if swallowed (acute oral toxicity Category 4); may cause skin and eye irritation, headache, dizziness, nausea, and vomiting upon inhalation.
Applications
The primary applications of 4-chloro-1-butene include:
- Organic Synthesis Intermediate: 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.
- Other: Involved in the production of agrochemicals and fine chemicals.
Classification
The following table outlines the classification of 4-chloro-1-butene based on chemical properties, uses, and regulations:
| Classification Type | Specific Category | Description |
|---|---|---|
| Chemical Class | Alkyl Halide (Chloroalkene) | An unsaturated chloroalkane, reactive in nucleophilic substitution reactions. |
| Usage Class | Organic Synthesis Reagent/Intermediate | Primarily used as a reagent and intermediate in chemical synthesis. |
| Hazard Class | 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. |
| Regulatory Class | Controlled Chemical (REACH, TSCA) | Listed under US TSCA and EPA Substance Registry; subject to environmental and safety controls. |
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