Product Name

  • Name

    Fluorescein 6-isothiocyanate

  • EINECS
  • CAS No. 18861-78-4
  • Article Data2
  • CAS DataBase
  • Density 1.54g/cm3
  • Solubility
  • Melting Point
  • Formula C21H11 N O5 S
  • Boiling Point 719.1°Cat760mmHg
  • Molecular Weight 389.388
  • Flash Point 388.7°C
  • Transport Information
  • Appearance
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 18861-78-4 (Fluorescein 6-isothiocyanate)
  • Hazard Symbols
  • Synonyms Fluorescein,6-isothiocyanato- (8CI); 6-Isothiocyanatofluorescein; Fluorescein6-isothiocyanate; Fluorescein isothiocyanate isomer II
  • PSA 120.44000
  • LogP 4.40010

Fluorescein 6-isothiocyanate Chemical Properties

Molecular Structure of Fluorescein 6-isothiocyanate (CAS NO. 18861-78-4):

Systematic Name: 3',6'-Dihydroxy-6-isothiocyanato-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one  
Molecular Formula: C21H11NO5S
Molecular Weight: 389.38
CAS Registry Number: 18861-78-4
Index of Refraction: 1.753
Molar Refractivity: 102.82 cm3
Molar Volume: 251.5 cm3
Surface Tension: 63.4 dyne/cm
Density: 1.54 g/cm3
Flash Point: 388.7 °C
Enthalpy of Vaporization: 108.81 kJ/mol
Boiling Point: 719.1 °C at 760 mmHg
Vapour Pressure: 2.28E-21 mmHg at 25 °C
Structure Descriptors:
SMILES: S=C=N/c5cc1c(C(=O)OC13c4ccc(O)cc4Oc2cc(O)ccc23)cc5 Copy
InChI: InChI=1/C21H11NO5S/c23-12-2-5-15-18(8-12)26-19-9-13(24)3-6-16(19)21(15)17-7-11(22-10-28)1-4-14(17)20(25)27-21/h1-9,23-24H
InChIKey: GTQFZXYECNSNNC-UHFFFAOYAK
Std. InChI: InChI=1S/C21H11NO5S/c23-12-2-5-15-18(8-12)26-19-9-13(24)3-6-16(19)21(15)17-7-11(22-10-28)1-4-14(17)20(25)27-21/h1-9,23-24H
Std. InChIKey: GTQFZXYECNSNNC-UHFFFAOYSA-N

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