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ESCALOL 507 [1 record]

Record 1 2011-02-07

English

Subject field(s)
  • Chemical Elements and Compounds
  • Cosmetology
Universal entry(ies)
C17H27NO2
formula, see observation
21245-02-3
CAS number
CONT

Ester derivatives of PABA include octyl dimethyl PABA, amyl dimethyl PABA (padimate A), and glycerol PABA. These derivatives have become more popular for use in sunscreen products because of a higher compatibility with other cosmetic vehicles and a decreased propensity for staining.

OBS

PABA: Abbreviation of "para-aminobenzoic acid," now "4-aminobenzoic acid."

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

N-: This prefix must be italicized.

OBS

Chemical formula: C17H27NO2

French

Domaine(s)
  • Éléments et composés chimiques
  • Cosmétologie
Entrée(s) universelle(s)
C17H27NO2
formula, see observation
21245-02-3
CAS number
OBS

Produit entrant dans la composition d'un écran solaire.

OBS

PABA : Abréviation de «acide p-aminobenzoïque», nom remplacé par «acide 4-aminobenzoïque».

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

N- : Ce préfixe s'écrit en italique.

OBS

Formule chimique : C17H27NO2

Spanish

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