Erythrosine

CAS Registry Number®

16423-68-0
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CAS Name

Erythrosine

Molecular Formula

C20H8I4O5.2Na

Cite this Page

Erythrosine.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=16423-68-0 (retrieved 2022-05-21) (CAS RN: 16423-68-0).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C20H8I4O5.2Na/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=DVUWFIWQOSNKQJ-UHFFFAOYSA-N

SMILES

O=C1OC2(C=3C(OC=4C2=CC(I)=C(O)C4I)=C(I)C(O)=C(I)C3)C=5C1=CC=CC5.[Na]

Canonical SMILES

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

Other Names for this Substance

  • Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one, 3′,6′-dihydroxy-2′,4′,5′,7′-tetraiodo-, sodium salt (1:2)
  • Fluorescein, 2′,4′,5′,7′-tetraiodo-, disodium salt
  • Erythrosine B
  • Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one, 3′,6′-dihydroxy-2′,4′,5′,7′-tetraiodo-, disodium salt
  • Erythrosine BS

Deleted or Replaced CAS Registry Numbers

1342-20-7, 1342-21-8, 1342-28-5, 16904-63-5, 27540-70-1, 72027-96-4, 111634-12-9, 145361-15-5, 198832-03-0, 658700-90-4