Table 2.

Chemical constituents identified in of Streptomyces sp. MUM256 extract.

No.	Constituents	Class	Retention time (min)	Molecular formula	Molecular Weight	Similarity (%)	References
1	Phenol,2,4-bis(1,1-dimethylethyl)-	Phenolic compound	44.445	C14H22O	206	96	Narendhran et al., 2014
2	Pyrrolo[1,2a]pyrazine-1,4-dione,hexahydro-	Pyrrolopyrazine	53.297	C7H10N2O2	154	98	Narasaiah et al., 2014; Ser et al., 2015a
3	Pyrrolo[1,2a]pyrazine-1,4-dione,hexahydro-3-(2-methylpropyl)-	Pyrrolopyrazine	58.510	C11H18N2O2	210	64	Narasaiah et al., 2014; Abdullah et al., 2015; Manimaran et al., 2015; Ser et al., 2015a
4	9H-Pyrido[3,4-b]indole	β-carboline alkaloid	60.381	C11H8N2	168	96	Zheng et al., 2006
5	Pyrrolo[1,2-a]pyrazine-1,4-dione,hexahydro-3-(phenylmethyl)-	Pyrrolopyrazine	72.071	C14H16N2O2	244	97	Narasaiah et al., 2014
6	Phenol,2,2′-methylenebis[6-(1,1-dimethylethyl)-4-methyl-	Phenolic compound	73.507	C23H32O2	340	96	Narendhran et al., 2014
7	1,2-Benzenedicarboxylic acid, mono(2-ethylhexyl) ester	Dicarboxylic acid ester	76.883	C16H22O4	278	91	Krishnan et al., 2014