P-Cresol

p-Cresol
Skeletal formula of p-cresol
3D model of p-cresol
Names
Preferred IUPAC name
4-Methylphenol
Systematic IUPAC name
4-Methylbenzenol
Other names
4-Cresol
p-Cresol
4-Hydroxytoluene
p-Cresylic acid
1-Hydroxy-4-methylbenzene
Identifiers
3D model (JSmol)
1305151
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.003.090 Edit this at Wikidata
EC Number
  • 203-398-6
2779
KEGG
RTECS number
  • GO6475000
UNII
  • InChI=1S/C7H8O/c1-6-2-4-7(8)5-3-6/h2-5,8H,1H3 checkY
    Key: IWDCLRJOBJJRNH-UHFFFAOYSA-N checkY
  • InChI=1/C7H8O/c1-6-2-4-7(8)5-3-6/h2-5,8H,1H3
    Key: IWDCLRJOBJJRNH-UHFFFAOYAN
  • Cc1ccc(O)cc1
Properties
C7H8O
Molar mass 108.13
Appearance colorless prismatic crystals
Density 1.0347 g/ml
Melting point 35.5 °C (95.9 °F; 308.6 K)
Boiling point 201.8 °C (395.2 °F; 474.9 K)
2.4 g/100 ml at 40 °C
5.3 g/100 ml at 100 °C
Solubility in ethanol miscible
Solubility in diethyl ether miscible
Vapor pressure 0.11 mmHg (25 °C)[1]
−72.1×10−6 cm3/mol
1.5395
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 May be fatal if swallowed, inhaled, or absorbed through skin.
GHS labelling:
GHS05: CorrosiveGHS06: ToxicGHS08: Health hazard
Danger
H201, H311, H314, H351, H370, H372, H373, H401, H412
P201, P202, P260, P264, P270, P273, P280, P281, P301+P310, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P307+P311, P308+P313, P310, P312, P314, P321, P322, P330, P361, P363, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
3
1
0
Flash point 86.1 °C (187.0 °F; 359.2 K)
Explosive limits 1.1%–?[1]
Lethal dose or concentration (LD, LC):
207 mg/kg (oral, rat, 1969)
1800 mg/kg (oral, rat, 1944)
344 mg/kg (oral, mouse)[2]
NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 5 ppm (22 mg/m3) [skin][1]
REL (Recommended)
 TWA 2.3 ppm (10 mg/m3)[1]
IDLH (Immediate danger)
 250 ppm[1]
Safety data sheet (SDS) External MSDS
Related compounds
Related phenols
 o-cresol, m-cresol, phenol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

para-Cresol, also 4-methylphenol, is an organic compound with the formula CH3C6H4(OH). It is a colourless solid that is widely used intermediate in the production of other chemicals. It is a derivative of phenol and is an isomer of o-cresol and m-cresol.[3]

  1. ^ a b c d e NIOSH Pocket Guide to Chemical Hazards. "#0156". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ "Cresol (o, m, p isomers)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
  3. ^ Fiege H (2000). "Cresols and Xylenols". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a08_025. ISBN 3-527-30673-0.