alizarin

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Related to alizarin red: Alcian blue

a·liz·a·rin

(ă-liz'ă-rin), [C.I. 58000]
1,2-dihydroxyanthraquinone; a red dye that occurs in the root of madder (Rubia tinctorum and other Rubiaceae) in glucose combination (ruberythric acid) as orange needles, slightly soluble in water; used by the ancients as a dye. Now produced synthetically from anthracene and used in the manufacture of dyes, for example, alizarin blue, alizarin orange, Turkey red. As an indicator, it is yellow below pH 5.5 and red above pH 6.8; other modified alizarins have other colors and change color at other pH values.

alizarin

/aliz·a·rin/ (ah-liz´ah-rin) a red crystalline dye prepared synthetically or obtained from madder; its compounds are used as indicators.

a·liz·a·rin

(ă-liz'ă-rin)
[CI 58000] A red dye that occurs in the root of madder as orange needles, slightly soluble in water; used by the ancients as a dye. Now made synthetically from anthracene and used in the manufacture of dyes, e.g., alizarin blue, alizarin orange, "Turkey red." As an indicator, it is yellow below pH 5.5 and red above pH 6.8; other modified alizarins have other colors and change color at other pH values.

alizarin

, alizarine (ă-liz′ă-rĭn) (-rēn″) [Fr. alizarine, fr Arabic alasāra, extract, juice + -ine]
A red dye obtained from coal tar or madder and used as a histological stain.
References in periodicals archive ?
After 18 days of propagation, bone nodules became visible and showed strong black/red signal after Alizarin Red stain was applied (Figure 7(c)(II, V)).
B) Alizarin Red staining after 21 days in osteogenic media determined osteoblastic bone mineralization.
The visual examination of fluorescent images reveal that in all samples, fluorescence of alizarin red is diffuse compared with that of other markers, suggesting that widespread bone osteoid formation rather than a mineralizing surface or layer--a classic phenomenon of initial bone healing [2].
Oil Red O staining showed the lipid vacuoles appearance in cells (Figure 1(c)(2)) and Alizarin Red staining obviously revealed calcium in cells, as observed from red staining (Figure 1(c)(4)).
Calcification of the intima may be seen in small arteries with confirmation by specific staining with alizarin red or by the von Kossa method using silver nitrate (Ketteler et al.
Much of the information in the following taxonomic accounts comes from three specimens cleared and stained with alizarin red S and methylene blue.
2009) the growth and mortality of European glass eel Anguilla anguilla 192 days after marking with oxytetracycline and alizarin red S were not significantly different between the two treatments and not different to the unmarked A.
Alizarin Red staining was used to detect the calcified tissue in cultures.
After differentiation the induced cells were positive for Alizarin Red stain even in the absence of dexamethasone whereas the un-induced cells were negative and very less mineralization was observed.
Alizarin red S stains calcium specifically, reacting with calcium phosphate at pH 7 and pH 4.