Hematoxylin hydrate, orange powder C.I. 75290
Dodávateľ: MP Biomedicals
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Varování
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Synonymá:
(+)-Hematoxylin hydrate, (6aS,11bR)-6,6a,7,11b-Tetrahydroindeno[2,1-c]chromene-3,4,6a,9,10-pentaol hydrate, Natural Black 1 hydtate, Hydroxybrasilin hydrate, (6aS,11bR)-7,11b-Dihydro-6H-indeno[2,1-c]chromene-3,4,6a,9,10-pentol hydrate
Hematoxylin is Gill’s Formulation 2; a nuclear counter stain of blue-violet colour. It is extracted from the heartwood of the logwood tree.
When oxidized it forms haematein, a compound that forms strongly coloured complexes with certain metal ions, the most notable ones being Fe(III) and Al(III) salts. Metal-haematein complexes are used to stain cell nuclei prior to examination under a microscope. Structures that stain with iron- or aluminium-haematein are often called basophilic, even though the mechanism of the staining is different from that of staining with basic dyes.
Used as a nuclear stain in cytology and histology applications.
Soluble in ethanol (20 mg/ml); hot water.
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Vzorec:
C₁₆H₁₄O₆·xH₂O Mw: 320.3 Teplota tavenia: 229…231 °C (lit.) Skladovacia teplota: Ambient |
Číslo MDL:
MFCD00078111 Číslo CAS: 517-28-2 |
Výsledky špecifikačného testu
| Identity Test | Passes |
| UV/VIS: l max (meOH) | 290 - 292 nm |
| Loss on Drying | Report Result |
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