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Resorcinol

IUPAC: benzene-1,3-diol

C6H6O2 Organic Compounds CAS 108-46-3
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Quick Reference
Formula / NotationC6H6O2
CAS Number108-46-3
Molecular Weight110.11
Melting Point228 to 232 °F (NTP, 1992)
Boiling Point531 to 536 °F at 760 mmHg (NTP, 1992)
Density1.2 at 68 °F (USCG, 1999) - Denser than water; will sink
Solubilitygreater than or equal to 100 mg/mL at 65.3 °F (NTP, 1992)
AppearanceResorcinol is a very white crystalline solid that becomes pink on exposure to light if not completely pure. Burns although ignition is difficult. Density approximately 1.28 g / cm3. Irritating to s...
Also Known Asbenzene-1,3-diol; 108-46-3; 1,3-Benzenediol; 1,3-Dihydroxybenzene; Resorcin; m-Hydroxyphenol; m-Hydroquinone; m-Dihydroxybenzene; 3-Hydroxyphenol; Resorcine
CategoryOrganic Compounds

What is Resorcinol?

Resorcinol is a benzenediol that is benzene dihydroxylated at positions 1 and 3. It has a role as a sensitiser and an erythropoietin inhibitor. It is a phenolic donor, a benzenediol and a member of resorcinols.

Formula & Notation

C6H6O2

IUPAC Name: benzene-1,3-diol

Other Names / Synonyms: benzene-1,3-diol; 108-46-3; 1,3-Benzenediol; 1,3-Dihydroxybenzene; Resorcin; m-Hydroxyphenol; m-Hydroquinone; m-Dihydroxybenzene; 3-Hydroxyphenol; Resorcine

Properties & Characteristics

Appearance: Resorcinol is a very white crystalline solid that becomes pink on exposure to light if not completely pure. Burns although ignition is difficult. Density approximately 1.28 g / cm3. Irritating to s.... Molecular formula: C6H6O2. Molecular weight: 110.11 g/mol. Boiling point: 531 to 536 °F at 760 mmHg (NTP, 1992). Melting point: 228 to 232 °F (NTP, 1992). Density: 1.2 at 68 °F (USCG, 1999) - Denser than water; will sink. Solubility: greater than or equal to 100 mg/mL at 65.3 °F (NTP, 1992). Vapor pressure: 1 mmHg at 227.1 °F ; 0.0002 mmHg at 77 °F (NTP, 1992). LogP: 0.8.

Physical Data

PropertyValue
Melting Point228 to 232 °F (NTP, 1992)
Boiling Point531 to 536 °F at 760 mmHg (NTP, 1992)
Density1.2 at 68 °F (USCG, 1999) - Denser than water; will sink
Molecular Weight110.11
Solubilitygreater than or equal to 100 mg/mL at 65.3 °F (NTP, 1992)
AppearanceResorcinol is a very white crystalline solid that becomes pink on exposure to light if not completely pure. Burns although ignition is difficult. Density approximately 1.28 g / cm3. Irritating to s...

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 Resorcinol
Formula C6H6O2
CAS Number 108-46-3
Molecular Weight 110.11
Synonyms benzene-1,3-diol; 108-46-3; 1,3-Benzenediol; 1,3-Dihydroxybenzene; Resorcin; m-Hydroxyphenol; m-Hydroquinone; m-Dihydroxybenzene; 3-Hydroxyphenol; Resorcine

Frequently Asked Questions

Resorcinol is a benzenediol that is benzene dihydroxylated at positions 1 and 3. It has a role as a sensitiser and an erythropoietin inhibitor. It is a phenolic donor, a benzenediol and a member of resorcinols.

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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.