Fluorescein

C₂₀H₁₂O₅

IUPAC: 3',6'-Dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one

CAS: 2321-07-5

Übersicht

Fluorescein is a synthetic fluorescent dye that glows bright green under UV light. It is used in ophthalmology, water tracing, and forensics.

Zusammensetzung

Element Symbol Atome Atommasse
Hydrogen H 12 1,0080
Carbon C 20 12,0110
Oxygen O 5 15,9990

Elementare Zusammensetzung

H
Hydrogen ×12
3,6%
C
Carbon ×20
72,3%
O
Oxygen ×5
24,1%

Verwendung

  • • Ophthalmology (eye examination)
  • • Water flow tracing
  • • Forensic detection
  • • Fluorescence microscopy

Wissenswertes

  • ✦ Used to trace water flow in rivers, caves, and sewage systems due to its intense fluorescence

Sicherheit

  • ⚠ Non-toxic at standard doses

Structure

SMILES

C1=CC=C2C(=C1)C(=O)OC23C4=C(C=C(C=C4)O)OC5=C3C=CC(=C5)O

Eigenschaften

Typ
organic
Zustand
solid
Molmasse
332,31 g/mol
Dichte
1,6020 g/cm³
Schmelzpunkt
314,0 °C
Löslichkeit
slightly soluble

Molecular Descriptors

Exact Mass
332,0685
XLogP
3,4
TPSA
76,0 Ų
H-Bond Donors
2
H-Bond Acceptors
5
Rotatable Bonds
0
Heavy Atoms
25
Complexity
522,0

Verwandte Verbindungen

Caffeine

C₈H₁₀N₄O₂

Coumarin

C₉H₆O₂

Acetone

(CH₃)₂CO

Acrylic Acid

C₃H₄O₂

Cysteine

C₃H₇NO₂S

DDT

C₁₄H₉Cl₅

Alanine

C₃H₇NO₂

Diazepam

C₁₆H₁₃ClN₂O

Dichloromethane

CH₂Cl₂

Butane

C₄H₁₀

Frequently Asked Questions

What is Fluorescein?
Fluorescein (C₂₀H₁₂O₅) is a organic compound with the IUPAC name 3',6'-Dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one.
What is the molecular weight of Fluorescein?
Fluorescein has a molar mass of 332.31 g/mol.
What state is Fluorescein at room temperature?
Fluorescein is a solid at room temperature.
Is Fluorescein organic or inorganic?
Fluorescein is classified as an organic compound.
What elements make up Fluorescein?
Fluorescein (C₂₀H₁₂O₅) is composed of Hydrogen (H), Carbon (C), Oxygen (O).