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C0567 Sigma

(−)-Catechin

≥97% (HPLC), from green tea

Synonym: (−)-trans-3,3′,4′,5,7-Pentahydroxyflavane, (2S,3R)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol

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(+)-Catechin hydrate

≥96.0% (sum of enantiomers, HPLC)

(−)-Catechin gallate

≥98% (HPLC), from green tea

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