| hematein | <chemistry> A reddish brown or violet crystalline substance, C16H12O6, got from haematoxylin by partial oxidation, and regarded as analogous to the phthaleins. Origin: Gr, blood. Source: Websters Dictionary (01 Mar 1998) |
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| hematein |
[NF] a brownish-red, crystalline substance derived from hematoxylin by oxidation; used as an indicator and stain.
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