- phthal|ein
- phthal|ein «THAL een, -ee ihn; FTHAL-», noun.any one of a series of organic dyes, as eosin, produced by combining phthalic anhydride with phenols.
Useful english dictionary. 2012.
phthal|ein
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phe|nol|phthal|ein — «FEE nohl THAL een, FTHAL », noun. a white or pale yellow powder used in testing acidity, making dyes, and as a laxative. Its solution is red when basic, colorless when acid. Formula: C20H14O4 … Useful english dictionary
phthalein — phthal•ein [[t]ˈθæl in, i ɪn, ˈfθæl [/t]] n. chem. any of a group of compounds formed by treating phthalic anhydride with phenols, from which certain important dyes are derived • Etymology: 1900–05; (na) phthale (ne) + in I … From formal English to slang
phthalein — ˈthalēə̇n, āl , ˌlēn noun also phthalein dye ( s) Etymology: International Scientific Vocabulary phthal + ein : any of a group of xanthene dyes (as phenolphthalein, fluorescein, rhodamine) that are intensely colored in alkaline solution and are… … Useful english dictionary
gallein — [gal′ē in, gal′ēn] n. 〚 GALL(IC ACID) + (PHTHAL)EIN〛 a violet dye, C20H12O7, formed by heating pyrogallol with phthalic anhydride, used as an indicator and as a mordant dye * * * gal·lein (gălʹē ĭn, gălʹēn ) n. A brown or metallic green dye,… … Universalium
Phenolphthalein — A compound used as a laboratory reagent and acid base indicator and also used in over the counter (OTC) laxative preparations. Phenolphthalein may be a carcinogen (cancer causing agent). Feeding of phenolphthalein caused cancer in multiple organs … Medical dictionary
phenolsulfonphthalein — Occurs as a bright to dark red crystalline powder; used as an indicator in tissue culture media (yellow at pH 6.8, red at pH 8.4); in the past given by parenteral injection as a test for renal function. S … Medical dictionary
phthalein — One of a group of highly colored compounds based on a triphenylmethyl base; e.g., phenolphthalein. * * * phtha·lein thal ē ən, thal .ēn, thāl n any of various xanthene dyes (as phenolphthalein or fluorescein) that are intensely colored in… … Medical dictionary
sulfobromophthalein sodium — A triphenylmethane derivative excreted by the liver, used in testing hepatic function, particularly of the reticuloendothelial cells. SYN: bromosulfophthalein, bromsulfophthalein. * * * sul·fo·bro·mo·phthal·ein so·di·um (sul″fo bro″mo … Medical dictionary
tetraiodophenolphthalein — tet·ra·iodo·phe·nol·phtha·lein .te trə ī .ō dō .fēn əl thal ē ən, thal .ēn, thāl n IODOPHTHALEIN * * * tet·ra·iodo·phe·nol·phthal·ein (tet″rə i″o do fe″nol thalґēn) a dye which after intravenous injection is excreted… … Medical dictionary
thymolphthalein — thy·mol·phtha·lein thal .ēn, thā .lēn, thal ē ən n a crystalline compound C28H30O4 analogous to phenolphthalein and likewise used as an acid base indicator * * * thy·mol·phthal·ein (thi″mo thalґēn) an indicator with a pH range of 9.3… … Medical dictionary
