Fluorescein 5-isothiocyanate

CAS Registry Number®

3326-32-7

CAS Name

Fluorescein 5-isothiocyanate

Molecular Formula

C21H11NO5S

Molecular Mass

389.38

Cite this Page

Fluorescein 5-isothiocyanate.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=3326-32-7 (retrieved 2024-11-23) (CAS RN: 3326-32-7).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

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

InChIKey=MHMNJMPURVTYEJ-UHFFFAOYSA-N

SMILES

O=C1OC2(C=3C1=CC(N=C=S)=CC3)C=4C(OC=5C2=CC=C(O)C5)=CC(O)=CC4

Canonical SMILES

O=C1OC2(C3=CC=C(O)C=C3OC4=CC(O)=CC=C42)C5=CC=C(N=C=S)C=C15

Other Names for this Substance

  • Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one, 3′,6′-dihydroxy-5-isothiocyanato-
  • Fluorescein, 5-isothiocyanato-
  • 3′,6′-Dihydroxy-5-isothiocyanatospiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one
  • 5-Isothiocyanatofluorescein
  • Fluorescein isothiocyanate isomer I

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Deleted or Replaced CAS Registry Numbers

55177-69-0, 86151-70-4, 113394-21-1, 122655-66-7, 135680-00-1, 1691330-05-8, 1839547-28-2, 2570982-74-8

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