Eosin

CAS Registry Number®

17372-87-1

CAS Name

Eosin

Molecular Formula

C20H8Br4O5.2Na

Cite this Page

Eosin.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=17372-87-1 (retrieved 2024-11-24) (CAS RN: 17372-87-1).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    295.5 °C

Source(s)

  • (1) PhysProp data were obtained from Syracuse Research Corporation of Syracuse, New York (US)

Other Names and Identifiers

InChI

InChI=1S/C20H8Br4O5.2Na/c21-11-5-9-17(13(23)15(11)25)28-18-10(6-12(22)16(26)14(18)24)20(9)8-4-2-1-3-7(8)19(27)29-20;;/h1-6,25-26H;;

InChIKey

InChIKey=WUMPFXDWXTYERP-UHFFFAOYSA-N

SMILES

O=C1OC2(C=3C(OC=4C2=CC(Br)=C(O)C4Br)=C(Br)C(O)=C(Br)C3)C=5C1=CC=CC5.[Na]

Canonical SMILES

[Na].O=C1OC2(C=3C=CC=CC13)C4=CC(Br)=C(O)C(Br)=C4OC5=C(Br)C(O)=C(Br)C=C52

Other Names for this Substance

  • Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one, 2′,4′,5′,7′-tetrabromo-3′,6′-dihydroxy-, sodium salt (1:2)
  • Fluorescein, 2′,4′,5′,7′-tetrabromo-, disodium salt
  • Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one, 2′,4′,5′,7′-tetrabromo-3′,6′-dihydroxy-, disodium salt
  • Eosin Yellowish
  • Eosin

View All

Deleted or Replaced CAS Registry Numbers

95917-83-2, 122199-14-8, 1340-15-4, 12777-83-2, 37361-24-3, 84932-33-2, 658700-91-5, 198831-98-0, 56588-87-5, 528838-89-3

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