6-Hydroxygenistein is an isoflavonoid compound that can be found in Baptisia hirsuta and serves as a key precursor for the synthesis of various methylated isoflavonoids.

The aerial parts of Impatiens balsamina L.

Rhodamine 123 是一种荧光染料（λex=503 nm，λem=527 nm）。 R123 荧光强度在浓度为 50 μM 时出现峰值，并在较高浓度时由于自猝灭而降低至零。