Is Benzyl Chloride (CAS 100-44-7) and Benzoyl Chloride (CAS 98-88-4) the Same?

Aug 15, 2025 Leave a message

Benzyl Chloride (CAS 100-44-7) is an aromatic halide having chemical formula C6H5CH2Cl . Benzoyl Chloride (CAS 98-88-4) is acyl chloride having chemical formula C6H5COCl.

Is Benzyl Chloride (CAS 100-44-7) and Benzoyl Chloride (CAS 98-88-4) the Same?

Physical and Chemical Properties

Property Benzyl Chloride Benzoyl Chloride
Chemical Formula C₆H₅CH₂Cl C₆H₅COCl
Functional Group Chloromethyl (–CH₂Cl) Acyl chloride (–COCl)
Appearance Colorless to slightly yellow liquid Colorless to pale yellow liquid
Odor Pungent, irritating Strong, sharp, lachrymatory (tear-producing)
Boiling Point ~179 °C ~197 °C
Water Reactivity Stable in water Reacts violently with water, releasing HCl

 

Benzyl Chloride Uses

  • Benzyl Chloride (CAS 100-44-7) is Used in producing benzyl alcohol, benzyl cyanide, and benzyl quaternary ammonium salts.
  • Applied in the synthesis of dyes, perfumes, and certain pharmaceuticals.
  • Functions as an intermediate in coatings, resins, and plasticizers production.

 

Benzoyl Chloride Uses

  • Intermediate for dyes, pharmaceuticals, and organic peroxides.
  • Benzoyl Chloride (CAS 98-88-4) is used in producing benzoyl peroxide, benzophenone, and benzyl benzoate.
  • Plays a role as a benzoylating agent in organic synthesis.

 

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