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. 2019 Mar 3;24(5):889. doi: 10.3390/molecules24050889

Table 2.

Bioactive compounds identified in EtOAc extract of Jatropha podagrica stem bark by GC-MS.

Fraction Retention Time Peak Area (%) Compounds Chemical Formula Molecular Weight Chemical Class Retention Index *
C1 10.35 4.76 Gallic acid C7H6O5 170 Phenolic acid 1754
16.37 96.24 Methyl gallate C8H8O5 184 Phenol 1722
C2 10.35 12.09 Gallic acid C7H6O5 170 Phenolic acid 1754
16.37 3.87 Methyl gallate C8H8O5 184 Phenol 1722
18.95 84.04 Fraxetin C10H8O5 208 Coumarin 2004
C3 16.37 2.94 Methyl gallate C8H8O5 184 Phenol 1722
18.35 54.34 Tomentin C11H10O5 222 Coumarin 2085
18.92 42.72 Fraxetin C10H8O5 208 Coumarin 2004
C4 16.35 12.32 Methyl gallate C8H8O5 184 Phenol 1722
18.96 87.68 Fraxetin C10H8O5 208 Coumarin 2004
C5 18.96 97.67 Fraxetin C10H8O5 208 Coumarin 2004

* The retention indices were obtained from the NIST/EPA/NIH Mass Spectral Library 2014. Wiley-WHC, Weinheim, Germany [23].