B

Benzoyl chloride

IUPAC: benzoyl chloride

C7H5ClO Organic Compounds CAS 98-88-4
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Quick Reference
Formula / NotationC7H5ClO
CAS Number98-88-4
Molecular Weight140.56
Melting Point30.2 °F (NTP, 1992)
Boiling Point387 °F at 760 mmHg (NTP, 1992)
Density1.211 at 77 °F (USCG, 1999) - Denser than water; will sink
SolubilityDecomposes (NTP, 1992)
AppearanceBenzoyl chloride appears as a colorless fuming liquid with a pungent odor. Flash point 162 °F. Lachrymator, irritating to skin and eyes. Corrosive to metals and tissue. Density 10.2 lb / gal. Used...
Also Known As98-88-4; Benzenecarbonyl chloride; Benzoic acid, chloride; alpha-Chlorobenzaldehyde; benzoic acid chloride; Benzaldehyde, alpha-chloro-; DTXSID9026631; VTY8706W36; DTXCID106631; CHEBI:82275
CategoryOrganic Compounds

What is Benzoyl chloride?

Benzoyl chloride is an acyl chloride consisting of benzene in which a hydrogen is replaced by an acyl chloride group. It is an important chemical intermediate for the manufacture of other chemicals, dyes, perfumes, herbicides and pharmaceuticals. It has a role as a carcinogenic agent. It is a member of benzenes and an acyl chloride. It is functionally related to a benzoic acid.

Formula & Notation

C7H5ClO

IUPAC Name: benzoyl chloride

Other Names / Synonyms: 98-88-4; Benzenecarbonyl chloride; Benzoic acid, chloride; alpha-Chlorobenzaldehyde; benzoic acid chloride; Benzaldehyde, alpha-chloro-; DTXSID9026631; VTY8706W36; DTXCID106631; CHEBI:82275

Properties & Characteristics

Appearance: Benzoyl chloride appears as a colorless fuming liquid with a pungent odor. Flash point 162 °F. Lachrymator, irritating to skin and eyes. Corrosive to metals and tissue. Density 10.2 lb / gal. Used.... Molecular formula: C7H5ClO. Molecular weight: 140.56 g/mol. Boiling point: 387 °F at 760 mmHg (NTP, 1992). Melting point: 30.2 °F (NTP, 1992). Density: 1.211 at 77 °F (USCG, 1999) - Denser than water; will sink. Solubility: Decomposes (NTP, 1992). Vapor pressure: 0.4 mmHg at 68 °F ; 1 mmHg at 89.8 °F (NTP, 1992). LogP: 2.9.

Physical Data

PropertyValue
Melting Point30.2 °F (NTP, 1992)
Boiling Point387 °F at 760 mmHg (NTP, 1992)
Density1.211 at 77 °F (USCG, 1999) - Denser than water; will sink
Molecular Weight140.56
SolubilityDecomposes (NTP, 1992)
AppearanceBenzoyl chloride appears as a colorless fuming liquid with a pungent odor. Flash point 162 °F. Lachrymator, irritating to skin and eyes. Corrosive to metals and tissue. Density 10.2 lb / gal. Used...

Uses & Applications

Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.

Safety Information

Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Benzoyl chloride
Formula C7H5ClO
CAS Number 98-88-4
Molecular Weight 140.56
Synonyms 98-88-4; Benzenecarbonyl chloride; Benzoic acid, chloride; alpha-Chlorobenzaldehyde; benzoic acid chloride; Benzaldehyde, alpha-chloro-; DTXSID9026631; VTY8706W36; DTXCID106631; CHEBI:82275

Frequently Asked Questions

Benzoyl chloride is an acyl chloride consisting of benzene in which a hydrogen is replaced by an acyl chloride group. It is an important chemical intermediate for the manufacture of other chemicals, dyes, perfumes, herbicides and pharmaceuticals. It has a role as a carcinogenic agent. It is a member of benzenes and an acyl chloride. It is functionally related to a benzoic acid.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.