Table 1.

Secondary metabolites contained in C. fistula L. barks.

Metabolites	Extract	n-Hexane	Water	Ethyl Acetate
Alkaloid	–	–	–	–
Tanin	+	–	+	+
Polyphenol	+	–	–	+
Saponin	+	–	+	–
Flavonoid	+	–	+	+
Monoterpenoid	+	–	–	+
Sesquiterpenoid	+	–	–	+
Steroid	–	–	–	–
Triterpenoid	–	–	–	–
Quinone	+	–	–	+`