Hematein is a stain for the cell nuclei of animal tissue. Also suggested to possess use as a stain for myelin sheaths and nerve fibers. An oxidized version of hematoxylin. Color index: 75290. Hematein exhibits indicator-like properties, being blue and less soluble in aqueous alkaline conditions, and red and more soluble in alcoholic acidic conditions. Dissolved haematein slowly reacts with atmospheric oxygen, yielding products that have not found applications. Synonyms: 6a,7-Dihydro-3,4,6a,10-tetrahydroxybenz[b]indeno[1,2-d]pyran-9(6H)-one, Haematein, NSC 7333, Hematoxylin, Haematoxylin, AI3-63013, 3,4,6a,10-tetrahydroxy-6a,7-dihydroindeno[2,1-c]chromen-9(6H)-one CAS No: 475-25-2 Molecular Formula: C16H12O6 Molecular Weight: 300.26 Hematein Content: ~15% Appearance: Brown to dark brown powder Solubility (NH3): Brownish-violet color. Insoluble in water Water Content: 15% Melting Point: 140C (lit) lambdamax: 425-435nm (in dioxane) Storage and Stability: Maybe stored at RT. Stable for 12 months after receipt.
Molekulargewicht:
300.26
CAS Nummer:
[475-25-2]
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