Resorcinol phthalein

FI uorescein (Fluorandiol, Dihydroxyfluoran, Resorcinol-phthalein or Uranin A), r6H3OHN O... [Pg.506]

Fluorescein or Resorcinol Phthalein, C20H14O5 mw 334.32, colorl ess ndls (from AcOH), mp (for solvent-free) 253—54° in sol in w sol in ale, eth, AcOH alkalies. Can be prepd by reduction of fluorescein or by heating pahalic anhydride resorcinol. Used as a reagent... [Pg.507]

SYNS AIZEN URANINE CALCOCID URANINE B4315 9-o-CARBOXYPHEN iX-6-HYDROXY-3-ISOX.ANTHONE, DISODIUM SALT CERTIQUAL FLUORESCEINE C.I. 766 C.I. ACID YELLOW 73 C.I. 45350 DISODIUM S.M.T D C YELLOW No. 8 DISODIUM-6-HY DROXY-3-OXO-9-XANTHENE-o-BENZOATE FLUORESCEIN SODIUM B.P FLUORESCEIN, soluble FLUOR-I-STRIP A.T. FUL-GLO FUNDUSCEIN FURANIUM HIDACID UIL XINE NCI-C54706 RESORCINOL PHTHALEIN... [Pg.668]

In a related phthalein dye, however, this condition is fully met. The dye fluorescein is resorcinol phthalein and is made from phthalic anhydride or phthalyl chloride and resorcinol just as phenol phthalein is made from phthalic anhydride and phenol (p. 750). These relationships may be expressed as follows writing the final dye salt both as a tri-phenyl methane derivative (B) and as a pyronine (C). The reactions are exactly analogous to those given for the preparation of phenolphthalein and its dye salt (p. 750), some of the intermediate steps being omitted in the present case. [Pg.759]

CAS 518-47-8 EINECS/ELINCS 208-253-0 Synonyms Acid yellow 73 sodium salt (INCI) 9-o-Carboxyphenyl-6-hydroxy-3-isoxanthone, disodium salt Cl 45350 3, 6 -Dihydroxyspiro [isobenzofuran-1 (3H),9 -[9H] xanthen]-3-one disodium salt Disodium fluorescein Disodium-6-hydroxy-3-oxo-9-xanthene-o-benzoate Fluorescein sodium salt Naphthol yellow S Resorcinol phthalein sodium ... [Pg.1158]

Resorcinolphthalein. See Fluorescein Resorcinol phthalein sodium. See D C Yellow No. 8 Fluorescein sodium Resorcinol resin. See Resorcinol-formaldehyde resin... [Pg.3826]

Other Names Fluorescein, disodium salt Fluorin 11824 Yellow 12417 Yellow 3058 Uranine Acid Yellow 73 Aizen Uranine Basacid Yellow 226 C.I. 45350 C.l. Acid Yellow 73 Calcocid Uranine B 4315 Certiqual Fluoresceine D C Yellow 8 D and C Yellow No. 8 D C Yellow No. 8 Disodium fluorescein Fluo-rectal Fluor-I-Strip Fluorescein LT Fluorescein Sodium B.P Fluorescein disodium Fluorescein sodium Fluorescein sodium salt Fluorescite Flurenate Ful-Glo Furanium Hidacid Uranine Japan Yellow 202(1) Obiturine Resorcinol phthalein sodium Sodium fluorescein Sodium fluoresceinate Soluble Fluorescein Soluble Fluoresceine BPS Ura-nin Uranin A Uranin Cone Uranin S Uranine Uranine A Uranine A extra Uranine O Uranine SS Uranine WSS... [Pg.160]

It condenses with resorcinol and amino-phenols to give phthalein and rhodamine dyestuffs respectively. Esters are used in the formation of polyimides. ... [Pg.253]

Irreversible reaction of [18] iodine with acetylsalicylic acid, aethaverine, amidopyrine, ascorbic acid, benzo-caine, quinine, dihydrocodeine, fluorescein, glycine, hydrocortisone acetate, isoni-azid, metamizole, papaverine, paracetamol, phenacetin, phenol-phthalein, piperazine, resorcinol, salicylic acid, salicylamide, sulfaguanidine, thymol, triethanolamine, tris buffer detection by reaction chromatography... [Pg.148]

Phthalein type dyes have been prepared from 2,3-dicarboxypyrazine by heating with phenols or aromatic amines and zinc chloride. For example, compound (25) was obtained with resorcinol (1353). Efforts to prepare 2,6-diaminopyrazine through a Curtius-Schmidt reaction on 2-acetamido-6-carboxypyrazine (with sodium azide, sulfuric acid, and trichloroacetic acid) proved unsuccessful (434). The preparation of bicyclic heterocyles from 2-amino-3-carboxypyrazines has been described in Section VIII. 1D(6). [Pg.263]

Such reactions, which will not be discussed further here, include the formation of diarylmethanes from an aldehyde and two molecules of an aromatic hydrocarbon, of triphenylmethane derivatives from an aldehyde and two molecules of an aromatic amine, and of phthaleins from phthalic anhydride and two molecules of phenol or resorcinol. [Pg.952]

Baeyer, in the hope of synthesising plant products, had the idea of condensing phenols with aldehydes and thought that phthalic anhydride might act as a mild dehydrating agent. By heating resorcinol with phthaJic anhydride he obtained fluorescein, and with phenol and phthalic anhydride the simplest member, phenolphthalein, of what he called phthaleins of phenols . ... [Pg.780]

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