D

1,2-Dichlorobenzene

IUPAC: 1,2-dichlorobenzene

C6H4Cl2 Organic Compounds CAS 95-50-1
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Quick Reference
Formula / NotationC6H4Cl2
CAS Number95-50-1
Molecular Weight147.00
Melting Point1 °F (NTP, 1992)
Boiling Point356.9 °F at 760 mmHg (NTP, 1992)
Density1.306 at 68 °F (USCG, 1999) - Denser than water; will sink
Solubilityless than 1 mg/mL at 76.1 °F (NTP, 1992)
AppearanceO-dichlorobenzene appears as a clear colorless liquid with a pleasant odor. Denser than water and insoluble in water. Flash point 150 °F. Toxic by inhalation and ingestion. Used to make other chem...
Also Known Aso-Dichlorobenzene; 95-50-1; ortho-Dichlorobenzene; o-Dichlorbenzol; Chloroben; 2-Dichlorobenzene; ODCB; Dilantin DB; o-Dichlorobenzol; Orthodichlorobenzol
CategoryOrganic Compounds

What is 1,2-Dichlorobenzene?

1,2-dichlorobenzene is a dichlorobenzene carrying chloro substituents at positions 1 and 2. It has a role as a metabolite and a hepatotoxic agent.

Formula & Notation

C6H4Cl2

IUPAC Name: 1,2-dichlorobenzene

Other Names / Synonyms: o-Dichlorobenzene; 95-50-1; ortho-Dichlorobenzene; o-Dichlorbenzol; Chloroben; 2-Dichlorobenzene; ODCB; Dilantin DB; o-Dichlorobenzol; Orthodichlorobenzol

Properties & Characteristics

Appearance: O-dichlorobenzene appears as a clear colorless liquid with a pleasant odor. Denser than water and insoluble in water. Flash point 150 °F. Toxic by inhalation and ingestion. Used to make other chem.... Molecular formula: C6H4Cl2. Molecular weight: 147.00 g/mol. Boiling point: 356.9 °F at 760 mmHg (NTP, 1992). Melting point: 1 °F (NTP, 1992). Density: 1.306 at 68 °F (USCG, 1999) - Denser than water; will sink. Solubility: less than 1 mg/mL at 76.1 °F (NTP, 1992). Vapor pressure: 1 mmHg at 68 °F ; 1.5 mmHg at 77 °F (NTP, 1992). LogP: 3.4.

Physical Data

PropertyValue
Melting Point1 °F (NTP, 1992)
Boiling Point356.9 °F at 760 mmHg (NTP, 1992)
Density1.306 at 68 °F (USCG, 1999) - Denser than water; will sink
Molecular Weight147.00
Solubilityless than 1 mg/mL at 76.1 °F (NTP, 1992)
AppearanceO-dichlorobenzene appears as a clear colorless liquid with a pleasant odor. Denser than water and insoluble in water. Flash point 150 °F. Toxic by inhalation and ingestion. Used to make other chem...

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 1,2-Dichlorobenzene
Formula C6H4Cl2
CAS Number 95-50-1
Molecular Weight 147.00
Synonyms o-Dichlorobenzene; 95-50-1; ortho-Dichlorobenzene; o-Dichlorbenzol; Chloroben; 2-Dichlorobenzene; ODCB; Dilantin DB; o-Dichlorobenzol; Orthodichlorobenzol

Frequently Asked Questions

1,2-dichlorobenzene is a dichlorobenzene carrying chloro substituents at positions 1 and 2. It has a role as a metabolite and a hepatotoxic agent.

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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.