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 | ||
|---|---|---|---|---|---|
| Sparteine | C15H26N2 | Mass Spec | Environmental | MassBank | |
| Speciofiline | C21H24N2O4 | Mass Spec | Chemical | MassBank | |
| Speciophylline | C21H24N2O4 | Mass Spec | Chemical | MassBank | |
| Speciosine | C28H31NO6 | Mass Spec | Chemical | MassBank | |
| Specitinomycin | C14H24N2O7 | Mass Spec | Chemical | MassBank | |
| Spectralon99WhiteRef LSPHERE | — | NIR | Man-made | USGS | |
| Sphaerocyclamide | C46H63N9O11 | Mass Spec | Metabolite | MassBank | |
| Spheroidenone | C41H58O2 | Mass Spec | Chemical | MassBank | |
| Sphinganine | C18H39NO2 | Mass Spec | Chemical | MassBank | |
| Sphingomyelin d18:0-C16:0 | C39H81N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:0-C18:0 | C41H85N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:0-C20:0 | C43H89N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:0-C22:0 | C45H93N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:0-C23:0 | C46H95N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:0-C24:1 | C47H95N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:1-C16:0 | C39H79N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:1-C17:0 | C40H81N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:1-C18:0 | C41H83N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:1-C19:0 | C42H85N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:1-C20:0 | C43H87N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:1-C21:0 | C44H89N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:1-C22:0 | C45H91N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:1-C22:1 | C45H89N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:1-C23:0 | C46H93N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:1-C23:1 | C46H91N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:1-C24:0 | C47H95N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:1-C24:1 | C47H93N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:2-C16:0 | C39H77N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:2-C18:0 | C41H81N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:2-C20:0 | C43H85N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:2-C22:0 | C45H89N2O6P | Mass Spec | Lipid | MassBank | |
| Sphingomyelin d18:2-C23:0 | C46H91N2O6P | Mass Spec | Lipid | MassBank | |
| Spinetoram J | C42H69NO10 | Mass Spec | Environmental | MassBank | |
| Spinetoram L | C43H69NO10 | Mass Spec | Environmental | MassBank | |
| Spinosad A | C41H65NO10 | Mass Spec | Pesticide | MassBank | |
| Spinosyn A | C41H65NO10 | Mass Spec | Environmental | MassBank | |
| Spinosyn D | C42H67NO10 | Mass Spec | Natural product | MassBank | |
| Spiperone | C23H26FN3O2 | Mass Spec | Chemical | MassBank | |
| Spiraeoside | C21H20O12 | Mass Spec | Natural product | MassBank | |
| Spiramycin | C43H74N2O14 | Mass Spec | Pharmaceutical | MassBank | |
| Spirilloxanthin | C42H60O2 | Mass Spec | Natural product | MassBank | |
| Spirodiclofen | C21H24Cl2O4 | Mass Spec | Chemical | MassBank | |
| Spirodiclofen-enol | C15H14Cl2O3 | Mass Spec | Chemical | MassBank | |
| Spironolactone | C24H32O4S | Mass Spec | Environmental | MassBank | |
| Spirotetramat | C21H27NO5 | Mass Spec | Environmental | MassBank | |
| Spirotetramat BYI08330-enol | C18H23NO3 | Mass Spec | Environmental | MassBank | |
| Spirotetramat BYI08330-ketohydroxy | C18H23NO4 | Mass Spec | Environmental | MassBank | |
| Spirotetramat BYI08330-monohydroxy | C18H25NO3 | Mass Spec | Environmental | MassBank | |
| Spirotetramat Metabolite BYI08330 Enol-Glucoside | C24H33NO8 | Mass Spec | Metabolite | MassBank | |
| Spiroxamine | C18H35NO2 | Mass Spec | Environmental | MassBank |