TERMIUM Plus®

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2-METHYLPHENOL [2 records]

Record 1 2011-07-05

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
CH3C6H4OH
formula, see observation
C7H8O
formula, see observation
95-48-7
CAS number
DEF

A chemical compound which appears under the form of white crystals, with a phenol-like odour, is derived by the fractional distillation of crude cresol from coal tar or by the interaction of methanol and phenol and is used as a disinfectant like phenol and as a solvent.

OBS

2-methylphenol: form recommended by the IUPAC (International Union of Pure and Applied Chemistry) for the systematic name corresponding to the CAS number indicated on the present record.

OBS

The prefixes "ortho-," "meta-" and "para-," along with their corresponding abbreviations ("o-," "m-" and "p-"), appear in italics and are ignored in alphabetizing. According to the actual chemical nomenclature rules in organic chemistry (in 2003), the numbers designating the positions of the disubstitution groups (1,2- for "ortho-," 1,3- for "meta-" and 1,4- for "para-") are to be preferred to the symbols "o-," "m-" and "p-." Furthermore, the prefixes "ortho-," "meta-" and "para-" should not be used anymore, and their corresponding abbreviations ("o-," "m-," and "p-") will soon be judged to be avoided, if not totally condemned.

OBS

Chemical formula: C7H8O or CH3C6H4OH

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
CH3C6H4OH
formula, see observation
C7H8O
formula, see observation
95-48-7
CAS number
DEF

Composé chimique qui se présente sous la forme de cristaux blancs ou d'un liquide incolore noircissant à l'air et qui est utilisé en synthèse organique et en thérapeutique comme désinfectant.

OBS

2-méthylphénol : forme recommandée par l'UICPA (Union internationale de chimie pure et appliquée) pour le nom systématique correspondant au numéro CAS indiqué sur la présente fiche.

OBS

Les préfixes de position «ortho-», «méta-» et «para-», tout comme les abréviations correspondantes «o-», «m-» et «p-», s'écrivent en italique et n'interviennent pas dans une classification par ordre alphabétique. Selon les règles de nomenclature de chimie organique en vigueur aujourd'hui (en 2003), il est recommandé d'utiliser les chiffres 1,2-, 1,3- et 1,4-, respectivement. Les préfixes «ortho-», «méta-» et «para-» ne doivent plus être utilisés. L'usage des symboles correspondants («o-», «m-» et «p-») sera bientôt fortement déconseillé, sans être exclu.

OBS

Formule chimique : C7H8O ou CH3C6H4OH

Spanish

Save record 1

Record 2 2011-03-18

English

Subject field(s)
  • Chemical Elements and Compounds
  • Analytical Chemistry
  • Environmental Studies and Analyses
Universal entry(ies)
C21H18O5S
formula, see observation
C6H4SO2OC(C6H3(OH)CH3)2
formula, see observation
DEF

A dye ... of the sulfonephthalein series derived from ortho-cresol that is obtained as a reddish brown crystalline powder and is used as an acid-base indicator.

OBS

"cresol red" changes from yellow to red between pH 7.0 and 8.8.

OBS

4,4'-(3H-2,1-benzoxathiole-3,3-diyl)bis(2-methylphenol) 1,1-dioxide: The capital letter "H" must be italicized.

OBS

Chemical formula: C21H18O5S or C6H4SO2OC(C6H3(OH)CH3)2

OBS

The prefix "ortho" and its abbreviated form "o" appear in italics and are ignored in alphabetizing.

French

Domaine(s)
  • Éléments et composés chimiques
  • Chimie analytique
  • Études et analyses environnementales
Entrée(s) universelle(s)
C21H18O5S
formula, see observation
C6H4SO2OC(C6H3(OH)CH3)2
formula, see observation
DEF

Sulfone-phtaléine de l'o-crésol [...]; indicateur de pH (7,2-8,8, jaune à violet-rouge) et 0,2 à 1,8 (du rouge au jaune).

OBS

1,1-dioxyde de 4,4'-(3H-2,1-benzoxathiole-3,3-diyl)bis(2-methylphenol) : La lettre majuscule «H» s'écrit en italique.

OBS

Formule chimique : C21H18O5S ou C6H4SO2OC(C6H3(OH)CH3)2

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Química analítica
  • Estudios y análisis del medio ambiente
Entrada(s) universal(es)
C21H18O5S
formula, see observation
C6H4SO2OC(C6H3(OH)CH3)2
formula, see observation
OBS

Fórmula química: C21H18O5S o C6H4SO2OC(C6H3(OH)CH3)2

Save record 2

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