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|UMLS ID -
Type Listed - Organic Chemical
- A lustrous powder, yellow to light-brown
in color, that is found in tree bark (particularly oak), fruits, leaves, and
tea. It is used medicinally as an astringent, commercially in tanning hides,
and as a dye mordant. (Saunders Dictionary and Encyclopedia of Laboratory Medicine
and Technology, 1984). It is also used as a histological fixative and stain.
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