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Cresol information


Isomers of Cresol[1][2][3][4]
Skeletal formula
Ball-and-stick model
General
Common name o-cresol m-cresol p-cresol
Preferred IUPAC name 2-methylphenol 3-methylphenol 4-methylphenol
Systematic name 2-methylbenzenol 3-methylbenzenol 4-methylbenzenol
Other names ortho-cresol
2-hydroxytoluene
meta-cresol
3-hydroxytoluene
para-cresol
4-hydroxytoluene
Molecular formula C7H8O
SMILES oc1c(C)cccc1 oc1cc(C)ccc1 oc1ccc(C)cc1
Molar mass 108.14 g/mol
Appearance at room
temperature and pressure
colorless crystals thicker liquid greasy-looking solid
CAS number [95-48-7] [108-39-4] [106-44-5]
mixture of cresols (tricresol): [1319-77-3]
Properties
Density and phase 1.05 g/cm3, solid 1.03 g/cm3, liquid 1.02 g/cm3, liquid
Solubility in pure water
at 20−25 °C
2.5 g/100 ml 2.4 g/100 ml 1.9 g/100 ml
soluble in strongly alkaline water
Melting point 29.8 °C (303.0 K) 11.8 °C (285.0 K) 35.5 °C (309.7 K)
Boiling point 191.0 °C (464.2 K) 202.0 °C (475.2 K) 201.9 °C (475.1 K)
Acidity (pKa) 10.287 10.09 10.26
Viscosity solid at 25 °C ? cP at 25 °C solid at 25 °C
Structure
Dipole moment 1.35 D 1.61 D 1.58 D
Hazards
SDS
Main hazards flammable, ingestion and inhalation toxicity hazard
Flash point 81 °C c.c. 86 °C 86 °C c.c.
GHS pictograms GHS05: CorrosiveGHS06: Toxic
RTECS number GO6300000 GO6125000 GO6475000
Related compounds
Related phenols xylenols
Related compounds bromocresol green, cresol red
Except where noted otherwise, data are given for
materials in their standard state (at 25 °C, 100 kPa)
Infobox disclaimer and references

Cresols (also known as hydroxytoluene, toluenol, benzol or cresylic acid) are a group of aromatic organic compounds. They are widely-occurring phenols (sometimes called phenolics) which may be either natural or manufactured. They are also categorized as methyl phenols. Cresols commonly occur as either solids or liquids because their melting points are generally close to room temperature. Like other types of phenols, they are slowly oxidized by exposure to air, and the resulting impurities often give the samples a yellow to brownish red tint. Cresols have an odor characteristic to that of other simple phenols, reminiscent to some of a "coal tar" smell. The name "cresol" is an adduct of phenol and their traditional source, creosote.

  1. ^ o-CRESOL (ICSC)
  2. ^ m-CRESOL (ICSC)
  3. ^ p-CRESOL (ICSC)
  4. ^ Pubchem. "o-cresol". pubchem.ncbi.nlm.nih.gov. Retrieved 2018-01-16.

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Cresol

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of cresol has a methyl group substituted onto the ring of phenol. There are three forms (isomers) of cresol: ortho-cresol (o-cresol), meta-cresol (m-cresol)...

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Cresol Red

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Cresol red (full name: o-cresolsulfonephthalein) is a triarylmethane dye frequently used for monitoring the pH in aquaria. Cresol red can be used in many...

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Creosote

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of p-cresol and phenol can be seen in the figures below: This reaction shows the oxidation of p-cresol in a sulfate-enriched environment. P-cresol was...

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C7H8O

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mass: 108.057515 u) may refer to: Anisole Benzyl alcohol Cresols o-Cresol m-Cresol p-Cresol Also possible hetero aromatic compounds containing oxygen(5...

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Amylmetacresol

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glucuronidated, and quickly eliminated via the kidneys. AMC is a derivative of m-cresol, with a pentyl group attached to the sixth carbon atom. The pure substance...

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Butylated hydroxytoluene

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The chemical synthesis of BHT in industry has involved the reaction of p-cresol (4-methylphenol) with isobutylene (2-methylpropene), catalyzed by sulfuric...

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Carbolic soap

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antiseptic soap containing carbolic acid (phenol) and/or cresylic acid (cresol), both of which are phenols derived from either coal tar or petroleum sources...

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Toluene toxicity

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catalyses the formation of benzyl alcohol and p-cresol, while CYP2B6 produces comparatively little p-cresol. It is believed that in humans, benzyl alcohol...

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Novolak

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density, determined by the processing conditions, m- vs p-cresol ratio, as well as CH2O/cresol ratio is typically around 15%. Novolaks are especially important...

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Metacresol purple

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Metacresol purple or m-cresol purple, also called m-cresolsulfonphthalein, is a triarylmethane dye and a pH indicator. It is used as a capnographic indicator...

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Carvacrol

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assessment of sodium p-chloro-m-cresol, p-chloro-m-cresol, chlorothymol, mixed cresols, m-cresol, o-cresol, p-cresol, isopropyl cresols, thymol, o-cymen-5-ol,...

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Aromatic compound

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ensuring the stability of such products. For example, three isomers exist for cresol because the methyl group and the hydroxyl group (both ortho para directors)...

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Phenol formaldehyde resin

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less than one. In place of phenol itself, they are often produced from cresols (methylphenols). The polymerization is brought to completion using acid-catalysis...

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Arene substitution pattern

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use of this nomenclature are given for isomers of cresol, C6H4(OH)(CH3): o-cresol m-cresol p-cresol There are three arene substitution isomers of dihydroxybenzene...

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Creolin

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the fragrance and dye industries. The EPA has classified o-cresol, m-cresol, and p-cresol as Group C: possible human carcinogens. Exposure to 26% Creolin...

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Benzol

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formula C6H5COOH Benzyl alcohol, an alcohol with the formula C6H5CH2OH Cresol (also called Benzol), also known as hydroxytoluene, a group of isomeric...

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Castoreum

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acetates. Other compounds are: benzoic acid, benzyl alcohol, borneol, o-cresol, 4-(4'-hydroxyphenyl)-2-butanone, hydroquinone, phenol. All those compounds...

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Jeyes Fluid

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Name EC № CAS № Concentration by weight Risk statements p-chloro-m-cresol (p-chlorocresol) 200-431-6 59-50-7 5–10% Xn;R21/22 R43 Xi;R41 N;R50 (Poly-)alkylphenols...

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Phenols

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phenols of commercial interest are prepared by elaboration of phenol or cresols. They are typically produced by the alkylation of benzene/toluene with...

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Honeywell UOP

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hydrocarbons Olex: olefins from paraffins Cresex: para-cresol or meta-cresol from other cresol isomers Cymex: para-cymene or meta-cymene from other cymene...

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