ES8606451A1 - Procedimiento para la obtencion de la eritrosina sodica - Google Patents

Procedimiento para la obtencion de la eritrosina sodica

Info

Publication number
ES8606451A1
ES8606451A1 ES548295A ES548295A ES8606451A1 ES 8606451 A1 ES8606451 A1 ES 8606451A1 ES 548295 A ES548295 A ES 548295A ES 548295 A ES548295 A ES 548295A ES 8606451 A1 ES8606451 A1 ES 8606451A1
Authority
ES
Spain
Prior art keywords
erythrosine
fluorescein
sodium
treatment
water
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.)
Expired
Application number
ES548295A
Other languages
English (en)
Other versions
ES548295A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zoster SA
Original Assignee
Zoster SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zoster SA filed Critical Zoster SA
Priority to ES548295A priority Critical patent/ES8606451A1/es
Publication of ES8606451A1 publication Critical patent/ES8606451A1/es
Publication of ES548295A0 publication Critical patent/ES548295A0/es
Expired legal-status Critical Current

Links

Landscapes

  • Coloring Foods And Improving Nutritive Qualities (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION DE LA ERITROSINA SODICA. COMPRENDE LA PREPARACION DE UNA DISOLUCION DE FLUORESCEINA Y YODO EN AGUA, A LA QUE SE AÑADE LA CANTIDAD ESTEQUIOMETRICA DE HIDROXIDO SODICO, HASTA UN VALOR DE PH COMPRENDIDO ENTRE 8 Y 10; CALENTAMIENTO HASTA LA TEMPERATURA DE 90JC Y ADICION LENTA DE YODATO POTASICO; TRATAMIENTO CON UN AGENTE REDUCTOR, TAL COMO ACIDO ACETICO, HASTA LA TOTAL PRECIPITACION DE LA ERITROSINA ACIDA; ELIMINACION DE LOS COLORANTES SUBSIDIARIOS FORMADOS, SEPARACION DE LA ERITROSINA FORMADA POR FILTRACION, LAVADO DE LA MISMA, SUSPENSION EN AGUA Y TRATAMIENTO CON CARBONATO SODICO HASTA QUE CESA EL DESPRENDIMIENTO DE CO2, PARA FORMAR LA SAL SODICA DE LA ERITROSINA. ESTE COMPUESTO TIENE APLICACIONES COMO AGENTE POTENCIADOR DEL COLOR EN ALIMENTOS, BEBIDAS Y COSMETICA, PARA LA FABRICACION DE PLACAS ORTOCROMATICAS EN FOTOGRAFIA Y COMO SENSIBILIZADOR DEL BROMURO DE PLATA.
ES548295A 1985-10-28 1985-10-28 Procedimiento para la obtencion de la eritrosina sodica Expired ES8606451A1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES548295A ES8606451A1 (es) 1985-10-28 1985-10-28 Procedimiento para la obtencion de la eritrosina sodica

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES548295A ES8606451A1 (es) 1985-10-28 1985-10-28 Procedimiento para la obtencion de la eritrosina sodica

Publications (2)

Publication Number Publication Date
ES8606451A1 true ES8606451A1 (es) 1986-04-16
ES548295A0 ES548295A0 (es) 1986-04-16

Family

ID=8490045

Family Applications (1)

Application Number Title Priority Date Filing Date
ES548295A Expired ES8606451A1 (es) 1985-10-28 1985-10-28 Procedimiento para la obtencion de la eritrosina sodica

Country Status (1)

Country Link
ES (1) ES8606451A1 (es)

Cited By (2)

* 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

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
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

Also Published As

Publication number Publication date
ES548295A0 (es) 1986-04-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20010102