M-Cresol

Not to be confused with Metacresol purple.
m-Cresol
m-cresol
3D model of m-cresol
Names
IUPAC name
3-methylphenol
Other names
3-Cresol
m-Cresol
3-Hydroxytoluene
m-Cresylic acid
1-Hydroxy-3-methylbenzene
3-Methylbenzenol
Identifiers
3D model (JSmol)
506719
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.003.253 Edit this at Wikidata
EC Number
  • 203-39-4
101411
KEGG
RTECS number
  • GO6125000
UNII
  • InChI=1S/C7H8O/c1-6-3-2-4-7(8)5-6/h2-5,8H,1H3 ☒N
    Key: RLSSMJSEOOYNOY-UHFFFAOYSA-N ☒N
  • InChI=1/C7H8O/c1-6-3-2-4-7(8)5-6/h2-5,8H,1H3
    Key: RLSSMJSEOOYNOY-UHFFFAOYAJ
  • Cc1cc(O)ccc1
Properties
C7H8O
Molar mass 108.14 g/mol
Appearance colorless liquid to yellowish liquid
Density 1.034 g/cm3, liquid at 20 °C
Melting point 11 °C (52 °F; 284 K)
Boiling point 202.8 °C (397.0 °F; 475.9 K)
2.35 g/100 ml at 20 °C
5.8 g/100 ml at 100 °C
Solubility in ethanol miscible
Solubility in diethyl ether miscible
Vapor pressure 0.14 mmHg (20 °C)[1]
−72.02×10−6 cm3/mol
1.5398
Viscosity 6.1 cP at 40 °C
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 May cause serious burns. Very destructive of mucous membranes. Harmful if inhaled. Toxic in contact with the skin or if swallowed.
GHS labelling:
GHS05: CorrosiveGHS06: ToxicGHS08: Health hazard
Danger
H227, H301, H311, H314, H351, H370, H372, H373, H401
P201, P202, P210, 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, P370+P378, P403+P235, 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 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuelInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
3
2
0
Flash point 86 °C
Explosive limits 1.1%–? (149 °C)[1]
Lethal dose or concentration (LD, LC):
242 mg/kg (oral, rat, 1969)
2020 mg/kg (oral, rat, 1944)
828 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, p-cresol, phenol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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meta-Cresol, also 3-methylphenol, is an organic compound with the formula CH3C6H4(OH). It is a colourless, viscous liquid that is used as an intermediate in the production of other chemicals. It is a derivative of phenol and is an isomer of p-cresol and o-cresol.[3]

  1. ^ a b c d e NIOSH Pocket Guide to Chemical Hazards. "#0155". 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. ^ Helmut Fiege (2007). "Cresols and Xylenols". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a08_025. ISBN 978-3527306732.