Browse reference spectra from the USGS Spectral Library Version 7 and other curated sources. Each spectrum includes interactive plots, metadata, and downloadable data.
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| Formula | Modality | Category | Source | ||
|---|---|---|---|---|---|
| Sulfosuccinic acid | C4H6O7S | Mass Spec | Chemical | MassBank | |
| Sulfotep | C8H20O5P2S2 | Mass Spec | Environmental | MassBank | |
| Sulfotobias acid | C10H9NO6S2 | Mass Spec | Chemical | MassBank | |
| Sulfuric acid, monooctadecyl ester | C18H38O4S | Mass Spec | Chemical | MassBank | |
| Sulfurol | C6H9NOS | Mass Spec | Environmental | MassBank | |
| Sulindac | C20H17FO3S | Mass Spec | Chemical | MassBank | |
| Sulisobenzone | C14H12O6S | Mass Spec | Chemical | MassBank | |
| Sulmazole | C14H13N3O2S | Mass Spec | Chemical | MassBank | |
| Sulochrin | C17H16O7 | Mass Spec | Environmental | MassBank | |
| Suloctidil | C20H35NOS | Mass Spec | Chemical | MassBank | |
| Sulpiride | C15H23N3O4S | Mass Spec | Chemical | MassBank | |
| Sulthiame | C10H14N2O4S2 | Mass Spec | Environmental | MassBank | |
| Sultopride | C17H26N2O4S | Mass Spec | Natural product | MassBank | |
| Sumatriptan | C14H21N3O2S | Mass Spec | Chemical | MassBank | |
| Sumire (emission) | — | Fluorescence | Fluorescent protein | FPbase | |
| Sunitinib | C22H27FN4O2 | Mass Spec | Pharmaceutical | MassBank | |
| Super Bright 436 (emission) | — | Fluorescence | Fluorescent dye | FPbase | |
| Super Bright 600 (emission) | — | Fluorescence | Fluorescent dye | FPbase | |
| Super Bright 600 (excitation) | — | Fluorescence | Fluorescent dye | FPbase | |
| Super Bright 702 (emission) | — | Fluorescence | Fluorescent dye | FPbase | |
| Super Bright 780 (emission) | — | Fluorescence | Fluorescent dye | FPbase | |
| SuperNova Red (excitation) | — | Fluorescence | Fluorescent protein | FPbase | |
| SuperNova2 (excitation) | — | Fluorescence | Fluorescent protein | FPbase | |
| Superfolder mTurquoise2 (emission) | — | Fluorescence | Fluorescent protein | FPbase | |
| Suprofen | C14H12O3S | Mass Spec | Chemical | MassBank | |
| Surfactin B | C52H91N7O13 | Mass Spec | Metabolite | MassBank | |
| Surfactin C | C53H93N7O13 | Mass Spec | Metabolite | MassBank | |
| Surinabant | C23H23BrCl2N4O | Mass Spec | Chemical | MassBank | |
| Suxibuzone | C24H26N2O6 | Mass Spec | Lipid | MassBank | |
| Symmetric dimethylarginine | C8H18N4O2 | Mass Spec | Natural product | MassBank | |
| SynaptoGreen (emission) | — | Fluorescence | Fluorescent dye | FPbase | |
| SynaptoRed (emission) | — | Fluorescence | Fluorescent dye | FPbase | |
| Synephrine | C9H13NO2 | Mass Spec | Chemical | MassBank | |
| Syringaldehyde | C9H10O4 | Mass Spec | Natural product | MassBank | |
| Syringate | C9H10O5 | Mass Spec | Chemical | MassBank | |
| Syringetin-3-O-galactoside | C23H24O13 | Mass Spec | Chemical | MassBank | |
| Syringetin-3-O-glucoside | C23H24O13 | Mass Spec | Chemical | MassBank | |
| Syringic acid | C9H10O5 | Mass Spec | Chemical | MassBank | |
| Syrosingopine | C35H42N2O11 | Mass Spec | Natural product | MassBank | |
| T-2 Toxin | C24H34O9 | Mass Spec | Metabolite | MassBank | |
| T-2 tetraol | C15H22O6 | Mass Spec | Metabolite | MassBank | |
| T-MUUROLOL | C15H26O | Mass Spec | Chemical | MassBank | |
| T-Sapphire (excitation) | — | Fluorescence | Fluorescent protein | FPbase | |
| T2 TOXIN | C24H34O9 | Mass Spec | Chemical | MassBank | |
| T2 tetraol | C15H22O6 | Mass Spec | Environmental | MassBank | |
| TALBUTAL | C11H16N2O3 | Mass Spec | Chemical | MassBank | |
| TARTARIC ACID-TETRA-TMS | C16H38O6Si4 | Mass Spec | Chemical | MassBank | |
| TAURINE | C2H7NO3S | Mass Spec | Chemical | MassBank | |
| TAYLORIONE | C15H22O | Mass Spec | Chemical | MassBank | |
| TBAnl | C6H4Br3N | Mass Spec | Natural product | MassBank |