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3 3-BIS(PARA-HYDROXYPHENYL)PHTHALIDE [1 record]

Record 1 2013-08-30

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
C20H14O4
formula, see observation
(C6H4OH)2C2O2C6H4
formula, see observation
77-09-8
CAS number
DEF

...Pale yellow powder; forms an almost colorless solution in neutral or acid solution ... soluble in alcohol, ether, and alkalies; insoluble in water .... Use: Acid-base indicator, laboratory reagent, medicine (laxative).

OBS

The word "alpha" must be replaced by the corresponding Greek letter or italicized. The Gage Canadian Dictionary p. 33 gives 3 forms of this greek letter: alpha, A, and its symbol.

OBS

Chemical formula: C20 H14 O4 or (C6H4OH)2C2O2C6H4

Key term(s)
  • a-(p-hydroxyphenyl)-alpha-(4-oxo-2,5-cyclohexadien-1-ylidine)

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
C20H14O4
formula, see observation
(C6H4OH)2C2O2C6H4
formula, see observation
77-09-8
CAS number
DEF

Corps de fonction C20 H14 O4, type de phtaléines [...]. Purgatif; indicateur acide-base très utilisé [...]

OBS

Formule chimique : C20 H14 O4 ou (C6H4OH)2C2O2C6H4

Spanish

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