5(6)-Carboxyfluorescein [72088-94-9] is used across pharmaceutical, biochemical, and research settings as a fluorescent indicator and stain. Its molecular formula is C20H12O5, with a molecular weight of 332.3. This compound decomposes at 290.0 °C, and in a sealed tube, it melts at 313.9 to 316.1 °C with decomposition. A warning label is required due to its potential harm if ingested. It finds applications in various fields such as DNA sequencing, flow cytometry, and cellular imaging.

• CAS Number: 72088-94-9
• Melting Point: Decomposes at 290.0 °C. In sealed tube, melts at 313.9 to 316.1 °C with decomposition
• GHS Signal Word: Warning
• Exact Mass: 332.06847348
• Molecular Formula: C20H12O5
• Molecular Weight: 332.3
• Hazard Statements:
• H302: Harmful if swallowed [Warning Acute toxicity, oral]