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CAS 6262-21-1

:

4,5,6,7-Tetrachlorofluorescein

Description:
4,5,6,7-Tetrachlorofluorescein, with the CAS number 6262-21-1, is a synthetic organic compound belonging to the fluorescein family, characterized by its vibrant fluorescent properties. This compound features a xanthene core structure, which is heavily substituted with four chlorine atoms at the 4, 5, 6, and 7 positions. The presence of these chlorine substituents significantly alters its solubility and photophysical properties compared to its parent compound, fluorescein. Typically, 4,5,6,7-tetrachlorofluorescein exhibits strong absorption and emission in the visible spectrum, making it useful in various applications, including fluorescence microscopy, dye tracing, and as a pH indicator. Its stability under light and chemical conditions is notable, although it can be sensitive to extreme pH levels. Additionally, this compound is often utilized in biological and environmental studies due to its ability to bind to proteins and other biomolecules, allowing for visualization and tracking in complex systems. Safety precautions should be observed when handling this compound, as with many chlorinated organic substances.
Formula:C20H8Cl4O5
InChI:InChI=1S/C20H8Cl4O5/c21-15-13-14(16(22)18(24)17(15)23)20(29-19(13)27)9-3-1-7(25)5-11(9)28-12-6-8(26)2-4-10(12)20/h1-6,25-26H
InChI key:InChIKey=QCPFFGGFHNZBEP-UHFFFAOYSA-N
SMILES:ClC1=C2C3(C=4C(OC=5C3=CC=C(O)C5)=CC(O)=CC4)OC(=O)C2=C(Cl)C(Cl)=C1Cl
Synonyms:
  • 1(3H),9'-(9H)xanthene)-3-one
  • 2,3,4,5-tetrachloro-6-(6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid
  • 3,4,5,6-Tetrachlorofluorescein
  • 4,5,6,7-Tetrachloro-3',6'-dihydroxyspiro(isobenzofuran-
  • 4,5,6,7-Tetrachloro-3′,6′-dihydroxyspiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one
  • 4,5,6,7-tetrachloro-3',6'-dihydroxy-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one
  • Fluorescein, 4,5,6,7-tetrachloro-
  • Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 4,5,6,7-
  • Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one, 4,5,6,7-tetrachloro-3′,6′-dihydroxy-
  • Tetrachloro fluorescein
  • See more synonyms
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