O

o-Xylene

IUPAC: 1,2-xylene

C8H10 Organic Compounds CAS 95-47-6
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Quick Reference
Formula / NotationC8H10
CAS Number95-47-6
Molecular Weight106.16
Melting Point-13 to -9 °F (NTP, 1992)
Boiling Point289 to 293 °F at 760 mmHg (NTP, 1992)
Density0.88 at 68 °F (USCG, 1999) - Less dense than water; will float
SolubilityInsoluble (NTP, 1992)
AppearanceO-xylene appears as a colorless watery liquid with a sweet odor. Less dense than water. Insoluble in water. Irritating vapor. (USCG, 1999)
Also Known As1,2-xylene; 1,2-Dimethylbenzene; 1,2-Xylene; 95-47-6; Ortho-Xylene; o-Xylol; o-Dimethylbenzene; o-Methyltoluene; 2-Xylene; 3,4-Xylene
CategoryOrganic Compounds

What is o-Xylene?

o-Xylene (C8H10) is an organic compound that appears as O-xylene appears as a colorless watery liquid with a sweet odor. Less dense than water. Insoluble in water. Irritating vapor. (USCG, 1999). It has a molecular weight of 106.16 g/mol. Its IUPAC name is 1,2-xylene. Boiling point: 289 to 293 °F at 760 mmHg (NTP, 1992). Melting point: -13 to -9 °F (NTP, 1992).

Formula & Notation

C8H10

IUPAC Name: 1,2-xylene

Other Names / Synonyms: 1,2-xylene; 1,2-Dimethylbenzene; 1,2-Xylene; 95-47-6; Ortho-Xylene; o-Xylol; o-Dimethylbenzene; o-Methyltoluene; 2-Xylene; 3,4-Xylene

Properties & Characteristics

Appearance: O-xylene appears as a colorless watery liquid with a sweet odor. Less dense than water. Insoluble in water. Irritating vapor. (USCG, 1999). Molecular formula: C8H10. Molecular weight: 106.16 g/mol. Boiling point: 289 to 293 °F at 760 mmHg (NTP, 1992). Melting point: -13 to -9 °F (NTP, 1992). Density: 0.88 at 68 °F (USCG, 1999) - Less dense than water; will float. Solubility: Insoluble (NTP, 1992). Vapor pressure: 10 mmHg at 89.8 °F (NTP, 1992). LogP: 3.1.

Physical Data

PropertyValue
Melting Point-13 to -9 °F (NTP, 1992)
Boiling Point289 to 293 °F at 760 mmHg (NTP, 1992)
Density0.88 at 68 °F (USCG, 1999) - Less dense than water; will float
Molecular Weight106.16
SolubilityInsoluble (NTP, 1992)
AppearanceO-xylene appears as a colorless watery liquid with a sweet odor. Less dense than water. Insoluble in water. Irritating vapor. (USCG, 1999)

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 o-Xylene
Formula C8H10
CAS Number 95-47-6
Molecular Weight 106.16
Synonyms 1,2-xylene; 1,2-Dimethylbenzene; 1,2-Xylene; 95-47-6; Ortho-Xylene; o-Xylol; o-Dimethylbenzene; o-Methyltoluene; 2-Xylene; 3,4-Xylene

Frequently Asked Questions

o-Xylene (C8H10) is an organic compound that appears as O-xylene appears as a colorless watery liquid with a sweet odor. Less dense than water. Insoluble in water. Irritating vapor. (USCG, 1999). It has a molecular weight of 106.16 g/mol. Its IUPAC name is 1,2-xylene. Boiling point: 289 to 293 °F at 760 mmHg (NTP, 1992). Melting point: -13 to -9 °F (NTP, 1992).

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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.