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Topic summary

Resorcinol

Resorcinol
Names Preferred IUPAC name
Benzene-1,3-diol
Other names
Resorcinol
Resorcin
m-Dihydroxybenzene
1,3-Benzenediol
1,3-Dihydroxybenzene
3-Hydroxyphenol
m-Benzenediol
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard100.003.260KEGG
UNII
UN number2876
  • InChI=1S/C6H6O2/c7-5-2-1-3-6(8)4-5/h1-4,7-8H
    Key: GHMLBKRAJCXXBS-UHFFFAOYSA-N
  • InChI=1/C6H6O2/c7-5-2-1-3-6(8)4-5/h1-4,7-8H
    Key: GHMLBKRAJCXXBS-UHFFFAOYAB
  • c1cc(cc(c1)O)O
Properties C6H6O2Molar mass110.111 g/mol Appearance White solid OdorFaint Density1.28 g/cm, solid Melting point110 °C (230 °F; 383 K) Boiling point277 °C (531 °F; 550 K) 110 g/100 mL at 20 °C Vapor pressure0.0002 mmHg (25 °C) Acidity (pKa) 9.15 −67.26×10 cm/mol1.578 2.07±0.02 DThermochemistry −368.0 kJ·mol 20.4 kJ·mol Pharmacology D10AX02 (WHO) S01AX06 (WHO) Hazards GHS labelling: H302, H313, H315, H318, H400P273, P280, P305+P351+P338Flash point127 °C; 261 °F; 400 K 608 °C (1,126 °F; 881 K) Explosive limits1.4%-? NIOSH (US health exposure limits):
PEL (Permissible)
none
REL (Recommended)
TWA 10 ppm (45 mg/m) ST 20 ppm (90 mg/m)
IDLH (Immediate danger)
N.D.
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Resorcinol (or resorcin) is a phenolic compound. It is an organic compound with the formula C6H4(OH)2. It is one of three isomericbenzenediols, the 1,3-isomer (or meta-isomer). Resorcinol crystallizes from benzene as colorless needles that are readily soluble in water, alcohol, and ether, but insoluble in chloroform and carbon disulfide.

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