naphthol

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naphthol

 [naf´thol]
a phenol occurring in coal tar in two forms: α- or 1-naphthol and β- or 2-naphthol. It is used in dyes, insecticides, and pharmaceutical compounds. If excessive amounts are ingested, poisoning may result, characterized by anemia, jaundice, convulsions, and coma.

naph·thol

(naf'thol),
A hydroxynaphthalene, occurring in two forms: α-naphthol, a dye intermediate used in cytochemistry for l-arginine localization; and β-naphthol, also known as isonaphthol, used as an anthelmintic and antiseptic. Both forms are also used in the manufacture of dyes, organic chemicals, and rubber products.
Synonym(s): naphthalenol

naphthol

Toxicology A white crystalline phenol derivative intermediate in the synthesis of multiple compounds including pharmaceuticals Toxicity Abdominal pain, glomerulonephritis, convulsions, circulatory collapse, skin pigmentation

naphthol

a phenol occurring in coal tar: α-naphthol (1-hydroxynaphthalene) or β-naphthol (2-hydroxynaphthalene). It has antiseptic properties and is used in compound form as a skin antiseptic.
References in periodicals archive ?
Types of pigments: Blues (Phthalso, Indanthrone), Greens (Phthalo), Reds (Quinacridone, Napthol, DDF, Azo condensation, etc.
Blacks (carbon black); Blues (indanthron blue, phthalocyanine blue); Greens (phthalocyanine green); Iron oxide pigments (yellow); Reds (BON red, lithol rubine, metallized azo red, napthol red, perylene maroon, perylene red, pigment scarlet, pyrazolone red, qainacridone red, quinacridone violet, red lake C, toluidine red); Yellow and Oranges (Diarylide orange toner, diarylide yellow toner, Hansa yellow, metallized azo yellow, orthonitraniline orange, dinitraniline orange).
Tenders are invited for Cloth Cotton Pugree Napthol Red Mull 81 Cms Wide Mill Made In 21 Meters And Above And Below 50 Meters Multiples Of 4-5 Meters To Is Specn, 7119/1973 Reaffirmed With Relexation Of Parameters Inches Colour Fastness To Washing 3 Or Better, Inches Colour Fastness To Rubbing Both Dry And Wet 3 Or Better Inches And Fabric Of Variety No.
Blue pigments (indanthrone, phthalocyanine blue); Green (phthalocyanine green); Red pigments (arylide red/maroon, BON red/maroon, lithol rubine, metallized azo red, napthol, perylene red/maroon, quinacridone red/violet, red lake C, toluidine red); Yellow and orange pigments (diarylide orange/yellow toner, hansa yellow, metallized azo yellow, orthonitraniline dinitraniline).
Pigment Red 2 is a napthol red that exhibits excellent gloss and transparency in both water and solvent systems.
HPPs encompass a wide variety of pigments, including specialty phthalocyanine (blue and green), indanthrone, quinacridone, perylene, DPP, specialty napthol, carbazole violet, benzimidazolone, azo condensations, metal complex pigments and isoindolinone.
This resulted in a rise in the price for naphthalene, which is the building block for tobias acid, beta napthol and BONA.