Resorcinol

Resorcinol
Skeletal formula	Ball-and-stick model
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
CAS Number	108-46-3 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:27810 ;
ChEMBL	ChEMBL24147 ;
ChemSpider	4878 ;
ECHA InfoCard	100.003.260
KEGG	D00133 ;
PubChem CID	5054;
UNII	YUL4LO94HK ;
UN number	2876
CompTox Dashboard (EPA)	DTXSID2021238 ;
	InChI 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;
	SMILES c1cc(cc(c1)O)O;
Properties
Chemical formula	C6H6O2
Molar mass	110.111 g/mol
Appearance	White solid
Odor	Faint
Density	1.28 g/cm3, solid
Melting point	110 °C (230 °F; 383 K)
Boiling point	277 °C (531 °F; 550 K)
Solubility in water	110 g/100 mL at 20 °C
Vapor pressure	0.0002 mmHg (25 °C)
Acidity (pKa)	9.15
Magnetic susceptibility (χ)	−67.26×10−6 cm3/mol
Refractive index (nD)	1.578
Dipole moment	2.07±0.02 D
Thermochemistry
Std enthalpy of; formation (ΔfH⦵298)	-368.0 kJ·mol−1
Enthalpy of fusion (ΔfH⦵fus)	20.4 kJ·mol−1
Pharmacology
ATC code	D10AX02 (WHO) S01AX06 (WHO)
Hazards
	GHS labelling:
Pictograms
Hazard statements	H302, H313, H315, H318, H400
Precautionary statements	P273, P280, P305+P351+P338
Flash point	127 °C; 261 °F; 400 K
Autoignition; temperature	608 °C (1,126 °F; 881 K)
Explosive limits	1.4%-?
	NIOSH (US health exposure limits):
PEL (Permissible)	none
REL (Recommended)	TWA 10 ppm (45 mg/m3) ST 20 ppm (90 mg/m3)
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). verify (what is ?) Infobox references

Resorcinol (or resorcin) is a phenolic compound. It is an organic compound with the formula C₆H₄(OH)₂. It is one of three isomeric benzenediols, 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.^[6]

^ ^a ^b "Front Matter". Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 691. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4.
^ ^a ^b ^c ^d ^e ^f ^g ^h NIOSH Pocket Guide to Chemical Hazards. "#0543". National Institute for Occupational Safety and Health (NIOSH).
^ Gawron, O.; Duggan, M.; Grelechi, C. (1952). "Manometric Determination of Dissociation Constants of Phenols". Analytical Chemistry. 24 (6): 969–970. doi:10.1021/ac60066a013.
^ ^a ^b ^c ^d CRC handbook of chemistry and physics: a ready-reference book of chemical and physical data. William M. Haynes, David R. Lide, Thomas J. Bruno (2016-2017, 97th ed.). Boca Raton, Florida. 2016. ISBN 978-1-4987-5428-6. OCLC 930681942.{{cite book}}: CS1 maint: location missing publisher (link) CS1 maint: others (link)
^ Lander, John J.; Svirbely, John J. Lander, W. J. (1945). "The Dipole Moments of Catechol, Resorcinol and Hydroquinone". Journal of the American Chemical Society. 67 (2): 322–324. doi:10.1021/ja01218a051.{{cite journal}}: CS1 maint: multiple names: authors list (link)
^ K. W. Schmiedel; D. Decker (2012). "Resorcinol". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a23_111.pub2. ISBN 978-3527306732.

[iupac2013-1] "Front Matter". Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 691. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4.

[PGCH-2] ^ ^a ^b ^c ^d ^e ^f ^g ^h NIOSH Pocket Guide to Chemical Hazards. "#0543". National Institute for Occupational Safety and Health (NIOSH).

[3] Gawron, O.; Duggan, M.; Grelechi, C. (1952). "Manometric Determination of Dissociation Constants of Phenols". Analytical Chemistry. 24 (6): 969–970. doi:10.1021/ac60066a013.

[CRC97-4] CRC handbook of chemistry and physics: a ready-reference book of chemical and physical data. William M. Haynes, David R. Lide, Thomas J. Bruno (2016-2017, 97th ed.). Boca Raton, Florida. 2016. ISBN 978-1-4987-5428-6. OCLC 930681942.{{cite book}}: CS1 maint: location missing publisher (link) CS1 maint: others (link)

[5] Lander, John J.; Svirbely, John J. Lander, W. J. (1945). "The Dipole Moments of Catechol, Resorcinol and Hydroquinone". Journal of the American Chemical Society. 67 (2): 322–324. doi:10.1021/ja01218a051.{{cite journal}}: CS1 maint: multiple names: authors list (link)

[Ullmann-6] K. W. Schmiedel; D. Decker (2012). "Resorcinol". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a23_111.pub2. ISBN 978-3527306732.

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