Encecalin and demethylencecalin are major phytotoxic compounds isolated from Helianthella quinquenervis (Hook) A Gray (Asteraceae), they inhibit photosystem II (from water to 2,5-dibromo-3-methyl-6-isopropyl-1,4 p-benzo-quinone).They retard seed germinati

De-O-methylacetovanillochromene 是一种天然产物，可用于生命科学领域的相关研究。其产品编号为 TMA0750，CAS号为 67667-62-3。

Cnicin is a natural product

7-Hydroxy-2,2-dimethylchromene 是一种天然产物，可用于生命科学领域的相关研究。其产品编号为 TN3226，CAS号为 19012-97-6。

5,7-Dihydroxy-3',4',5'-trimethoxyflavone is a natural product from Centaurea scoparia.

Eupatoriochromene retard seed germination , reduced radicle and hypocotyl growth of weed and crop plant seedlings and increased adventitious root formation of mung bean cuttings. Eupatoriochromene has insecticidal activity, it exhibits toxicity againstCul