Phloroglucinol

Phloroglucinol is an organic compound with the formula C6H3(OH)3. It is a colorless solid. It is used in the synthesis of pharmaceuticals and explosives. Phloroglucinol is one of three isomeric benzenetriols. The other two isomers are hydroxyquinol (1,2,4-benzenetriol) and pyrogallol (1,2,3-benzenetriol). Phloroglucinol, and its benzenetriol isomers, are still defined as "phenols" according to the IUPAC official nomenclature rules of chemical compounds. Many such monophenolics are often termed polyphenols.

Phloroglucinol
Names
Preferred IUPAC name
Benzene-1,3,5-triol
Other names
phloroglucine, 1,3,5-benzenetriol , 1,3,5-trihydroxybenzene or cyclohexane-1,3,5-trione
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.003.284
EC Number
  • 203-611-2
KEGG
RTECS number
  • UX1050000
UNII
  • InChI=1S/C6H6O3/c7-4-1-5(8)3-6(9)2-4/h1-3,7-9H Y
    Key: QCDYQQDYXPDABM-UHFFFAOYSA-N Y
  • InChI=1/C6H6O3/c7-4-1-5(8)3-6(9)2-4/h1-3,7-9H
    Key: QCDYQQDYXPDABM-UHFFFAOYAF
  • c1c(cc(cc1O)O)O
Properties
C6H6O3
Molar mass 126.11 g/mol
Appearance colorless to beige solid
Melting point 219 °C (426 °F; 492 K)
1 g/100 mL
Solubility soluble in diethyl ether, ethanol, pyridine
Acidity (pKa) 8.45
-73.4·10−6 cm3/mol
Pharmacology
A03AX12 (WHO)
Hazards
GHS labelling:
Warning
H315, H317, H319, H335, H341, H361
P201, P202, P261, P264, P271, P272, P280, P281, P302+P352, P304+P340, P305+P351+P338, P308+P313, P312, P321, P332+P313, P333+P313, P337+P313, P362, P363, P403+P233, P405, P501
Lethal dose or concentration (LD, LC):
5 g/kg (rat, oral)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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