Pinacol

Pinacol
Pinacol
Ball-and-stick model of pinacol
Names
Preferred IUPAC name
2,3-Dimethylbutane-2,3-diol
Other names
2,3-Dimethyl-2,3-butanediol
Tetramethylethylene glycol
1,1,2,2-Tetramethylethylene glycol
Pinacone
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.000.849 Edit this at Wikidata
EC Number
  • 200-933-5
UNII
  • InChI=1S/C6H14O2/c1-5(2,7)6(3,4)8/h7-8H,1-4H3 checkY
    Key: IVDFJHOHABJVEH-UHFFFAOYSA-N checkY
  • CC(C)(O)C(C)(C)O
  • CC(C)(O)C(C)(C)O
Properties
C6H14O2
Molar mass 118.174 g/mol
Appearance White solid
Density 0.967 g/cm3
Melting point 40 to 43 °C (104 to 109 °F; 313 to 316 K)
Boiling point 171 to 173 °C (340 to 343 °F; 444 to 446 K)
Hazards
GHS labelling:
GHS05: CorrosiveGHS07: Exclamation mark
Warning
H228, H315, H319, H335
P210, P240, P241, P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P403+P233, P405, P501
Flash point 77 °C (171 °F; 350 K)
Safety data sheet (SDS) External MSDS
Related compounds
Related compounds
 Pinacolone
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Pinacol is a branched alcohol which finds use in organic syntheses. It is a diol that has hydroxyl groups on vicinal carbon atoms. A white solid that melts just above room temperature, pinacol is notable for undergoing the pinacol rearrangement in the presence of acid and for being the namesake of the pinacol coupling reaction.