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F2456 Sigma-Aldrich

Fluorescein (free acid)

Dye content 95 %

  • CAS Number 2321-07-5

  • Empirical Formula (Hill Notation) C20H12O5

  • Molecular Weight 332.31

  •  Colour Index Number 45350:1

  •  Beilstein/REAXYS Number 94324

  •  EC Number 219-031-8

  •  MDL number MFCD00005050

  •  PubChem Substance ID 24894822

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Properties

Related Categories Biochemicals and Reagents, Cell Biology, E-F, Fluorescein and Derivatives, Fluorescent Labels,
InChI Key   GNBHRKFJIUUOQI-UHFFFAOYSA-N
composition   Dye content, 95%
mp   320 °C (lit.)
absorption   λmax 496 nm

Description

General description

Fluorescein (free acid) is a xanthene dye. Fluorescein (free acid) molecule can be divided into two parts. One part contains xanthene moiety which acts as fluorophore and the other part of the molecule bears benzene moiety which is the fluorescence-controlling moiety. Principle involved in the modulation of its fluorescence properties has been described. Its uptake by zeolite NaX and the mesoporous zeotype MCM-41 has been investigated. It is widely employed as quantum yield standard.

Application

Fluorescein (free acid) has been used as a staining agent in retinal imaging.

Packaging

2.5, 100, 500 g in glass bottle

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
RIDADR 
NONH for all modes of transport
WGK Germany 
3
RTECS 
LM5075000

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Milli-Q® Water Purification Solutions
Protocols & Articles
Peer-Reviewed Papers
15

References

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