A

Alpha-chloroacetophenone

IUPAC: 2-chloro-1-phenylethanone

C8H7ClO Organic Compounds CAS 532-27-4
Expert Written | Fact Checked | Sources Cited | AllChemicals Editorial Team
Quick Reference
Formula / NotationC8H7ClO
CAS Number532-27-4
Molecular Weight154.59
Melting Point133.7 °F (NTP, 1992)
Boiling Point441 to 442 °F at 760 mmHg (NTP, 1992)
Density1.32 at 59 °F (USCG, 1999) - Denser than water; will sink
Solubilityless than 1 mg/mL at 66 °F (NTP, 1992)
Appearance2-chloroacetophenone appears as a riot control agent and chemical warfare tear gas agent. A white crystalline solid. Denser than water and insoluble in water. Hence sinks in water. A lachrymator: v...
Also Known As2-chloro-1-phenylethanone; 2-CHLOROACETOPHENONE; 532-27-4; Phenacyl chloride; 2-Chloro-1-phenylethanone; omega-Chloroacetophenone; CHLOROACETOPHENONE; Tear Gas; Mace (lacrimator); Chloromethyl phenyl ketone
CategoryOrganic Compounds

What is Alpha-chloroacetophenone?

Alpha-chloroacetophenone (C8H7ClO) is an organic compound that appears as 2-chloroacetophenone appears as a riot control agent and chemical warfare tear gas agent. A white crystalline solid. Denser than water and insoluble in water. Hence sinks in water. A lachrymator: v.... It has a molecular weight of 154.59 g/mol. Its IUPAC name is 2-chloro-1-phenylethanone. Boiling point: 441 to 442 °F at 760 mmHg (NTP, 1992). Melting point: 133.7 °F (NTP, 1992).

Formula & Notation

C8H7ClO

IUPAC Name: 2-chloro-1-phenylethanone

Other Names / Synonyms: 2-chloro-1-phenylethanone; 2-CHLOROACETOPHENONE; 532-27-4; Phenacyl chloride; 2-Chloro-1-phenylethanone; omega-Chloroacetophenone; CHLOROACETOPHENONE; Tear Gas; Mace (lacrimator); Chloromethyl phenyl ketone

Properties & Characteristics

Appearance: 2-chloroacetophenone appears as a riot control agent and chemical warfare tear gas agent. A white crystalline solid. Denser than water and insoluble in water. Hence sinks in water. A lachrymator: v.... Molecular formula: C8H7ClO. Molecular weight: 154.59 g/mol. Boiling point: 441 to 442 °F at 760 mmHg (NTP, 1992). Melting point: 133.7 °F (NTP, 1992). Density: 1.32 at 59 °F (USCG, 1999) - Denser than water; will sink. Solubility: less than 1 mg/mL at 66 °F (NTP, 1992). Vapor pressure: 0.0054 mmHg at 68 °F (NTP, 1992). LogP: 2.3.

Physical Data

PropertyValue
Melting Point133.7 °F (NTP, 1992)
Boiling Point441 to 442 °F at 760 mmHg (NTP, 1992)
Density1.32 at 59 °F (USCG, 1999) - Denser than water; will sink
Molecular Weight154.59
Solubilityless than 1 mg/mL at 66 °F (NTP, 1992)
Appearance2-chloroacetophenone appears as a riot control agent and chemical warfare tear gas agent. A white crystalline solid. Denser than water and insoluble in water. Hence sinks in water. A lachrymator: v...

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 Alpha-chloroacetophenone
Formula C8H7ClO
CAS Number 532-27-4
Molecular Weight 154.59
Synonyms 2-chloro-1-phenylethanone; 2-CHLOROACETOPHENONE; 532-27-4; Phenacyl chloride; 2-Chloro-1-phenylethanone; omega-Chloroacetophenone; CHLOROACETOPHENONE; Tear Gas; Mace (lacrimator); Chloromethyl phenyl ketone

Frequently Asked Questions

Alpha-chloroacetophenone (C8H7ClO) is an organic compound that appears as 2-chloroacetophenone appears as a riot control agent and chemical warfare tear gas agent. A white crystalline solid. Denser than water and insoluble in water. Hence sinks in water. A lachrymator: v.... It has a molecular weight of 154.59 g/mol. Its IUPAC name is 2-chloro-1-phenylethanone. Boiling point: 441 to 442 °F at 760 mmHg (NTP, 1992). Melting point: 133.7 °F (NTP, 1992).

More "A" Terms

View all "A" terms →
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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.