Browse reference spectra from the USGS Spectral Library Version 7 and other curated sources. Each spectrum includes interactive plots, metadata, and downloadable data.
Have an unknown spectrum? Match it against this entire library with HQI similarity scoring — no install, no data leaves your machine.
Identify My SampleLearn more about how spectral matching works, HQI scoring, and building a personal reference library on the Spectral Library Search page.
| Formula | Modality | Category | Source | ||
|---|---|---|---|---|---|
| (+)-Dizocilpine | C16H15N | Mass Spec | Chemical | MassBank | |
| (+)-Epicatechin | C15H14O6 | Mass Spec | Natural product | MassBank | |
| (+)-Isocorydin | C20H23NO4 | Mass Spec | Environmental | MassBank | |
| (+)-Isoproterenol | C11H17NO3 | Mass Spec | Chemical | MassBank | |
| (+)-Levobunolol | C17H25NO3 | Mass Spec | Chemical | MassBank | |
| (+)-Lupanine | C15H24N2O | Mass Spec | Environmental | MassBank | |
| (+)-Pantothenic acid | C9H17NO5 | Mass Spec | Natural product | MassBank | |
| (+)-Sparteine | C15H26N2 | Mass Spec | Environmental | MassBank | |
| (+)-Tubocurarine chloride | C37H40N2O6 | Mass Spec | Chemical | MassBank | |
| (+)-pantothenate | C9H17NO5 | Mass Spec | Natural product | MassBank | |
| (+-)-1-BENZOCYCLOBUTENECARBOXYLIC ACID | C9H8O2 | Mass Spec | Chemical | MassBank | |
| (+-)-3-METHYL-2-PYRROLIDINONE | C5H9NO | Mass Spec | Chemical | MassBank | |
| (+-)-3-Methyl-2-oxovaleric acid | C6H10O3 | Mass Spec | Natural product | MassBank | |
| (+-)-Baclofen | C10H12ClNO2 | Mass Spec | Chemical | MassBank | |
| (+-)-DIHYDROYASHABUSHIKETOL | C19H22O2 | Mass Spec | Chemical | MassBank | |
| (+-)-GINGEROL | C17H26O4 | Mass Spec | Chemical | MassBank | |
| (+-)-Naringenin | C15H12O5 | Mass Spec | Natural product | MassBank | |
| (+-)-WARFARIN | C19H16O4 | Mass Spec | Chemical | MassBank | |
| (+-)-YASHABUSHIKETOL | C19H20O2 | Mass Spec | Chemical | MassBank | |
| (+-)-alpha-Lipoic acid | C8H14O2S2 | Mass Spec | Chemical | MassBank | |
| (+-)-alpha-Tocopherol | C29H50O2 | Mass Spec | Natural product | MassBank | |
| (+/-) Salsolinol | C10H13NO2 | Mass Spec | Natural product | MassBank | |
| (+/-)-Apomorphinee | C17H17NO2 | Mass Spec | Chemical | MassBank | |
| (+/-)-Camphor | C10H16O | Mass Spec | Chemical | MassBank | |
| (+/-)-cis,trans-abscisic acid | C15H20O4 | Mass Spec | Chemical | MassBank | |
| (+/-)-trans-2,3-Epoxy-1-octanol | C8H16O2 | Mass Spec | Chemical | MassBank | |
| (-)-2,6,6-TRIMETHYL-2(R)-VINYL-5(R)-ACETOXYTETRAHYDROPYRAN | C12H20O3 | Mass Spec | Chemical | MassBank | |
| (-)-2,6,6-TRIMETHYL-2(R)-VINYL-5(R)-HYDROXYTETRAHYDROPYRAN | C10H18O2 | Mass Spec | Chemical | MassBank | |
| (-)-2,6,6-TRIMETHYL-2(R)-VINYLTETRAHYDROPYRAN-5-ONE | C10H16O2 | Mass Spec | Chemical | MassBank | |
| (-)-2-[(1S,2S)-1,2-Dimethyl-3-methylenecyclopentyl]ethyl camphanate | C20H30O4 | Mass Spec | Natural product | MassBank | |
| (-)-3 3' 4' 5 7-Pentahydroxyflavan | C15H14O6 | Mass Spec | Chemical | MassBank | |
| (-)-B-Hydrastine | C21H21NO6 | Mass Spec | Chemical | MassBank | |
| (-)-CINCHONIDINE | C19H22N2O | Mass Spec | Chemical | MassBank | |
| (-)-Citramalic acid | C5H8O5 | Mass Spec | Chemical | MassBank | |
| (-)-Curcumol | C15H24O2 | Mass Spec | Natural product | MassBank | |
| (-)-Dizocilpine | C16H15N | Mass Spec | Chemical | MassBank | |
| (-)-Eburnamonine | C19H22N2O | Mass Spec | Natural product | MassBank | |
| (-)-Epicatechin | C15H14O6 | Mass Spec | Natural product | MassBank | |
| (-)-Epigallocatechin gallate | C22H18O11 | Mass Spec | Chemical | MassBank | |
| (-)-Epinephrine | C9H13NO3 | Mass Spec | Natural product | MassBank | |
| (-)-Isoproterenol | C11H17NO3 | Mass Spec | Chemical | MassBank | |
| (-)-Levobunolol | C17H25NO3 | Mass Spec | Chemical | MassBank | |
| (-)-MENTHYL ACRYLATE | C13H22O2 | Mass Spec | Chemical | MassBank | |
| (-)-Nicotine | C10H14N2 | Mass Spec | Chemical | MassBank | |
| (-)-Nuciferine | C19H21NO2 | Mass Spec | Environmental | MassBank | |
| (-)-RIBOFLAVIN | C17H20N4O6 | Mass Spec | Chemical | MassBank | |
| (-)-Reserpine | C33H40N2O9 | Mass Spec | Environmental | MassBank | |
| (-)-STRYCHNINE | C21H22N2O2 | Mass Spec | Chemical | MassBank | |
| (-)-Scopolamine | C17H21NO4 | Mass Spec | Environmental | MassBank | |
| (-)-Shikimic acid | C7H10O5 | Mass Spec | Natural product | MassBank |