Category:
Other Excipients
CAS NO:
1401-55-4
Standard:
In-house Standards,
light yellow or light brown powder, exposed to the air easily oxidized, the color deepened, odorless, astringent.
Tannic acid is a polyphenolic compound extracted from plant galls, widely used as a mordant in dyeing processes. Its core function involves forming stable complexes with metal ions to fix dyes on fibers. The chemical formula is C76H52O46 and the CAS number is 1401-55-4.
Store in a cool, dry place away from oxidizers. Avoid inhalation of dust; wear appropriate PPE including gloves and goggles. Not approved for direct clinical drug use without pharmaceutical-grade purification.