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Substance Name: Fluorescein-5-isothiocyanate
RN: 3326-32-7
UNII: I223NX31W9
InChIKey: MHMNJMPURVTYEJ-UHFFFAOYSA-N

Note

  • Fluorescent probe capable of being conjugated to tissue and proteins. It is used as a label in fluorescent antibody staining procedures as well as protein- and amino acid-binding techniques.

Molecular Formula

  • C21-H11-N-O5-S

Molecular Weight

  • 389.3859
 

Classification Codes

  • Coloring Agents
  • Fluorescent Dyes
  • Indicators and Reagents
  • Luminescent Agents
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Names and Synonyms

Name of Substance

  • Fluorescein-5-isothiocyanate

MeSH Heading

  • Fluorescein-5-isothiocyanate

Synonyms

  • EINECS 222-042-0
  • Fluorescein-5-isothiocyanate
  • UNII-I223NX31W9

Systematic Names

  • 2-(6-Hydroxy-3-oxo-(3H)-xanthen-9-yl)-5-isothiocyanatobenzoic acid
  • Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 3',6'-dihydroxy-5-isothiocyanato-

Registry Numbers

CAS Registry Number

  • 3326-32-7

FDA UNII

  • I223NX31W9

Other Registry Numbers

  • 113394-21-1
  • 122655-66-7
  • 135680-00-1
  • 1691330-05-8
  • 1839547-28-2
  • 55177-69-0
  • 86151-70-4

Related Registry Number

  • 63469-13-6 (hydrochloride)

System Generated Number

  • 0003326327

Structure Descriptors

InChI

InChI=1S/C21H11NO5S/c23-12-2-5-16-18(8-12)26-19-9-13(24)3-6-17(19)21(16)15-4-1-11(22-10-28)7-14(15)20(25)27-21/h1-9,23-24H

InChIKey

MHMNJMPURVTYEJ-UHFFFAOYSA-N

Smiles

Oc1ccc2c(Oc3cc(O)ccc3C24OC(=O)c5cc(ccc45)N=C=S)c1