Fenolftaleína

C₂₀H₁₄O₄

IUPAC: 3,3-Bis(4-hydroxyphenyl)-2-benzofuran-1(3H)-one

CAS: 77-09-8

Descripción general

Phenolphthalein is the most famous acid-base indicator, turning pink in basic solutions. It was also used as a laxative until concerns about carcinogenicity.

Composición

Elemento Símbolo Átomos Masa atómica
Hidrógeno H 14 1,0080
Carbono C 20 12,0110
Oxígeno O 4 15,9990

Composición elemental

H
Hidrógeno ×14
4,4%
C
Carbono ×20
75,5%
O
Oxígeno ×4
20,1%

Usos

  • • Acid-base indicator
  • • Universal indicator component
  • • Historical laxative

Datos curiosos

  • ✦ The most commonly used acid-base indicator in chemistry education worldwide

Seguridad

  • ⚠ Possible carcinogen
  • ⚠ No longer used as laxative

Estructura

SMILES

C1=CC=C2C(=C1)C(=O)OC2(C3=CC=C(C=C3)O)C4=CC=C(C=C4)O

Propiedades

Tipo
organic
Estado
solid
Masa molar
318,32 g/mol
Densidad
1,2770 g/cm³
Punto de fusión
262,5 °C
Solubilidad
insoluble

Descriptores moleculares

Masa exacta
318,0892
XLogP
3,6
TPSA
66,8 Ų
Donadores de enlace de hidrógeno
2
Aceptores de enlace de hidrógeno
4
Enlaces rotables
2
Átomos pesados
24
Complejidad
438,0

Compuestos relacionados

1,2-Dicloroetano

C₂H₄Cl₂

1,3-Butadieno

C₄H₆

1,4-Dioxano

C₄H₈O₂

1-Butanol

C₄H₁₀O

2-Propanol

C₃H₈O

Acetaldehído

CH₃CHO

Acetamida

C₂H₅NO

Acetato de butilo

C₆H₁₂O₂

Acetato de etilo

C₄H₈O₂

Acetato de vinilo

C₄H₆O₂

Frequently Asked Questions

What is Fenolftaleína?
Fenolftaleína (C₂₀H₁₄O₄) is a organic compound with the IUPAC name 3,3-Bis(4-hydroxyphenyl)-2-benzofuran-1(3H)-one.
What is the molecular weight of Fenolftaleína?
Fenolftaleína has a molar mass of 318.32 g/mol.
What state is Fenolftaleína at room temperature?
Fenolftaleína is a solid at room temperature.
Is Fenolftaleína organic or inorganic?
Fenolftaleína is classified as an organic compound.
What elements make up Fenolftaleína?
Fenolftaleína (C₂₀H₁₄O₄) is composed of Hidrógeno (H), Carbono (C), Oxígeno (O).