Synonyms: 5-FAM4-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)isophthalic acid Purity Limit: ≥ 99% (HPLC) CAS No.: 76823-03-5 Molecular Formula: C21H12O7 Molecular Weight: 376.3 MDL No.: MFCD00036874 Appearance: Yellow to orange powder Storage Temperature: Store at 0-8 °C