Stain+red
71Congo red — Naphthalene dye that is pH sensitive (blue violet at pH 3, red at pH 5). Used as vital stain, also in staining for amyloid …
72trypan red — An azo dye formerly used in the treatment of trypanosomiasis. * * * trypan red n a disazo dye C32H19N6Na5O15S5 formerly used in the treatment of trypanosomiasis * * * an acid azo dye used as a vital stain and which possesses some trypanocidal… …
73oil red O — a red diazo dye that is more soluble in fat than in water or alcohols; used as a stain for neutral fats …
74Congo red — a dark red or reddish brown pigment that becomes blue in acidic conditions. It is used as a histological stain. Amyloidosis is indicated if over 60% of the dye disappears from the blood within one hour of injection …
75Congo red — Con′go red′ n. chem. a water soluble powder, C32H22O6N6S2Na2, used chiefly as a dye, biological stain, and chemical indicator • Etymology: 1880–85 …
76sp(h)erd(h)-, (s)p(h)red(h)-, nasal. sp(h)rend(h)- — sp(h)erd(h) , (s)p(h)red(h) , nasal. sp(h)rend(h) English meaning: to rush; to spring; running Deutsche Übersetzung: “zucken, springen” Note: d(h) extension to 1. and 2. sp(h)er . Material: O.Ind. spárdhatē, spūrdha ti (perf.… …
77ruthenium red — noun : an ammoniated ruthenium chloride obtained as a brownish red powder and used as a microscopic stain and as a test especially for pectin and gums …
78neutral red — noun Date: 1890 a basic dye used chiefly as a biological stain and acid base indicator …
79Masson&’s trichrome stain — Trichrome stains are used particularly for connective tissue. Masson&’s trichrome method uses haemalum, acid fuchsin and methyl blue and has the effect of staining nuclei blue black, cytoplasm red and collagen blue …
80Ponceau red — (= Ponceau S; Fast Ponceau 2B) Dye used to stain proteins …
