Tanning agents, vegetable Images
Go to article Tanning agents, vegetable
Structural formula of gallic acid.
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Structural formula of digallus acid.

Structural formula of epigallocatechin gallate.
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Structural formula from Catechin.
Structural formula of gallic acid.
Structural formula of digallus acid.
Structural formula of epigallocatechin gallate.
Structural formula from Catechin.