Phenolphthalein [77-09-8] is a technically defined substance, characterized by the molecular formula C20H14O4 and a molecular weight of 318.3. It exhibits a Melting Point range of 257.8 to 262.2 °C. This compound falls under the substance groups of Phenols, substituted and Lactones, substituted. The hazard signal word associated with Phenolphthalein is Danger, due to its potential health risks as indicated by the Hazard Statements H341, H350, and H317.

• CAS Number: 77-09-8
• Molecular Weight: 318.3
• Molecular Formula: C20H14O4
• Vapour Density: 1.299 at 77 °F
• Melting Point: 257.8 to 262.2 °C
• GHS Signal Word: Danger
• Exact Mass: 318.08920892
• Hazard Statements:
• H341: Suspected of causing genetic defects [Warning Germ cell mutagenicity]
• H350: May cause cancer [Danger Carcinogenicity]
• H317: May cause an allergic skin reaction [Warning Sensitization, Skin]