Table 4.

Chromogenic reaction results of the flavones.

Condition	Water elution	10%EtOH elution	30%EtOH elution	50%EtOH elution
HCl	—	—	—	—
HCl-Zn	—	—	Light red	red
KBH4	—	Red	Purple	Red
AlCl3	Sky bluea	Light bluea	Gray–yellowa	Bright yellowa
FeCl3	Clay bank precipitation	Light brown	Brown precipitation	Brown precipitation
SrCl2	Light green	Light green	Brown precipitation	Flavor green precipitation
PbAc2	Light green precipitation	Earthy yellow	Sandy beige precipitation	Yellow precipitation
Na2CO3	Light yellow	Light mignonette	Sepia precipitation	Yellow precipitation

— = no obvious change.

^aRepresents fluorescence.