<b>GC–MS metabolomic profiles of extracellular secondary metabolites produced by </b><b><i>Bacillus</i></b><b> sp. under different pH conditions</b>

This dataset contains raw and processed gas chromatography–mass spectrometry (GC–MS) data generated from extracellular metabolite extracts of Bacillus sp. cultured under two pH conditions (pH 7.0 and pH 7.5). The dataset includes total ion chromatograms (TICs), individual mass spectra of selected peaks, and compound identification tables generated through library matching against the NIST mass spectral database. Separate Excel files are provided for each pH condition, listing putatively identified compounds with retention times, molecular weights, match scores, and relative abundances. These data support the analysis of pH-dependent variation in secondary metabolite profiles and provide a resource for comparative metabolomics, antimicrobial compound discovery, and functional interpretation of biosynthetic potential in marine sediment derived Bacillus sp. The dataset complements the associated manuscript by enabling transparency, reproducibility, and reuse of the metabolomic results.