DE108838C - - Google Patents

Info

Publication number
DE108838C
DE108838C DENDAT108838D DE108838DA DE108838C DE 108838 C DE108838 C DE 108838C DE NDAT108838 D DENDAT108838 D DE NDAT108838D DE 108838D A DE108838D A DE 108838DA DE 108838 C DE108838 C DE 108838C
Authority
DE
Germany
Prior art keywords
dyes
electrolysis
halogen
solution
fluorescein
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DENDAT108838D
Other languages
German (de)
English (en)
Publication of DE108838C publication Critical patent/DE108838C/de
Active legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B11/00Diaryl- or thriarylmethane dyes
    • C09B11/04Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/06Hydroxy derivatives of triarylmethanes in which at least one OH group is bound to an aryl nucleus and their ethers or esters
    • C09B11/08Phthaleins; Phenolphthaleins; Fluorescein

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
DENDAT108838D Active DE108838C (fr)

Publications (1)

Publication Number Publication Date
DE108838C true DE108838C (fr)

Family

ID=378788

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT108838D Active DE108838C (fr)

Country Status (1)

Country Link
DE (1) DE108838C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8530675B2 (en) 2009-09-18 2013-09-10 Provectus Pharmaceuticals, Inc. Process for the synthesis of 4,5,6,7-tetrachloro-3′,6′-dihydroxy-2′,4′,5′,7′-tetraiodo-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (rose bengal) and related xanthenes
US9273022B2 (en) 2009-09-18 2016-03-01 Provectus Pharmaceuticals, Inc. Process for the synthesis of 4,5,6,7-tetrachloro-3′,6′-dihydroxy-2′, 4′, 5′7′-tetraiodo-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (Rose Bengal) and related xanthenes
CN106188086A (zh) * 2016-07-15 2016-12-07 北京百灵威科技有限公司 一种制备四碘荧光素b的工艺方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8530675B2 (en) 2009-09-18 2013-09-10 Provectus Pharmaceuticals, Inc. Process for the synthesis of 4,5,6,7-tetrachloro-3′,6′-dihydroxy-2′,4′,5′,7′-tetraiodo-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (rose bengal) and related xanthenes
US9273022B2 (en) 2009-09-18 2016-03-01 Provectus Pharmaceuticals, Inc. Process for the synthesis of 4,5,6,7-tetrachloro-3′,6′-dihydroxy-2′, 4′, 5′7′-tetraiodo-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (Rose Bengal) and related xanthenes
US9422260B2 (en) 2009-09-18 2016-08-23 Provectus Pharmatech, Inc. Process for the synthesis of 4,5,6,7-tetrachloro-3′,6′-dihydroxy-2′,4′,5′,7′-tetraiodo-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one(Rose Bengal) and related xanthenes
CN106188086A (zh) * 2016-07-15 2016-12-07 北京百灵威科技有限公司 一种制备四碘荧光素b的工艺方法
CN106188086B (zh) * 2016-07-15 2019-04-16 北京百灵威科技有限公司 一种制备四碘荧光素b的工艺方法

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