Home > Name List By 4 > 4-[(2-carboxyphenyl)-(4-oxocyclohexa-2,5-dien-1-ylidene)methyl]phenolate

CAS No 518-51-4 , 4-[(2-carboxyphenyl)-(4-oxocyclohexa-2,5-dien-1-ylidene)methyl]phenolate

  • Name: 4-[(2-carboxyphenyl)-(4-oxocyclohexa-2,5-dien-1-ylidene)methyl]phenolate
  • Synonyms: 2-[(4-hydroxyphenyl)-(4-oxo-1-cyclohexa-2,5-dienylidene)methyl]benzoate; CTK1H3799;4-[(2-carboxyphenyl)-(4-oxocyclohexa-2,5-dien-1-ylidene)methyl]phenolate; AC1OG893; AG-F-76057;ZINC04143879;
  • CAS Registry Number:
  • Flash Point: 328.1°C
  • Boiling Point: 595.8°C at 760 mmHg
  • Safety Statements: 24/25
  • Flash Point: 328.1°C
  • EINECS: 208-254-6
  • Molecular Weight: 317.31482
  • InchiKey: GGCFKQBFXFYVGD-UHFFFAOYSA-M
  • InChI: InChI=1S/C20H14O4/c21-15-9-5-13(6-10-15)19(14-7-11-16(22)12-8-14)17-3-1-
    2-4-18(17)20(23)24/h1-12,21H,(H,23,24)/p-1
  • Risk Statements: 36/37/38
  • Molecular Formula: C20H13O4-
  • Molecular Structure:CAS No:518-51-4 4-[(2-carboxyphenyl)-(4-oxocyclohexa-2,5-dien-1-ylidene)methyl]phenolate

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References of 4-[(2-carboxyphenyl)-(4-oxocyclohexa-2,5-dien-1-ylidene)methyl]phenolate
Title: Phenolphthalein Sodium
CAS Registry Number: 518-51-4
CAS Name: 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone disodium salt
Molecular Formula: C20H12Na2O4
Molecular Weight: 362.29
Percent Composition: C 66.30%, H 3.34%, Na 12.69%, O 17.66%
Literature References: Prepd from an alcoholic soln of 1 mol phenolphthalein by the addition of 2 mols NaOH. Structure: Buu-Hoi, Bull. Soc. Chim. [5] 8, 165 (1941).
Properties: Reddish-brown granular mass with coppery luster, or pale red powder. Dec in air. Soluble in water, giving a deep-red soln. Absorption max: 550-555 nm. The unstable enol form is colorless, as is the trisodium salt.
Absorption maximum: Absorption max: 550-555 nm
 
 
Status: This monograph has been retired and is no longer subject to revision or update.