Phenolphthalein
[CAS# 5768-87-6]

Identification

• Name: Phenolphthalein
• Synonyms: 2-[(4-Hydroxyphenyl)-(4-Keto-1-Cyclohexa-2,5-Dienylidene)Methyl]Benzoic Acid; 2-((4-Hydroxyphenyl)(4-Oxo-2,5-Cyclohexadien-1-Ylidene)Methyl)Benzoic Acid; Benzoic Acid, 2-((4-Hydroxyphenyl)(4-Oxo-2,5-Cyclohexadien-1-Ylidene)Methyl)-
• Molecular Formula: C₂₀H₁₄O₄
• Molecular Weight: 318.33
• CAS Registry Number: 5768-87-6
• SMILES: C3=C(C(=C1C=CC(=O)C=C1)C2=CC=C(C=C2)O)C(=CC=C3)C(=O)O
• 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)
• InChIKey: GGCFKQBFXFYVGD-UHFFFAOYSA-N

Properties

• Density: 1.356g/cm³ (Cal.)
• Boiling point: 595.763°C at 760 mmHg (Cal.)
• Flash point: 328.137°C (Cal.)