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 | ||
|---|---|---|---|---|---|
| TERT-BUTYLFLUORO(2,4,6-TRIISOPROPYLPHENYL)SILANOL | C19H33FOSi | Mass Spec | Chemical | MassBank | |
| TERT-BUTYLFLUOROMETHOXY(2,4,6-TRI-TERT-BUTYLPHENYL)SILANE | C23H41FOSi | Mass Spec | Chemical | MassBank | |
| TERT-BUTYLIODODIMETHYLSILANE | C6H15ISi | Mass Spec | Chemical | MassBank | |
| TERT-PENTYLBENZENE | C11H16 | Mass Spec | Chemical | MassBank | |
| TERTBUTYL BENZOATE | C11H14O2 | Mass Spec | Chemical | MassBank | |
| TESTOSTERONE METHOXYMETHYL ETHER | C21H32O3 | Mass Spec | Chemical | MassBank | |
| TESTSTERONE | C19H28O2 | Mass Spec | Chemical | MassBank | |
| TETRA(N-BUTYL)-1,2-DICHLORODISILANE | C16H36Cl2Si2 | Mass Spec | Chemical | MassBank | |
| TETRA-N-BUTYLSTANNANE | C16H36Sn | Mass Spec | Chemical | MassBank | |
| TETRA-O-ACETYL-1-DEOXY-D-ARABINO-HEX-1-ENOPYRANOSE | C14H18O9 | Mass Spec | Chemical | MassBank | |
| TETRA-O-ACETYL-3-DEOXY-ALPHA-D-ERYTHRO-HEX-2-ENOPYRANOSE | C14H18O9 | Mass Spec | Chemical | MassBank | |
| TETRAAMYLAMMONIUM IODIDE | C20H44IN | Mass Spec | Chemical | MassBank | |
| TETRABROMOPHTHALIC ACID DIMETHYL ESTER | C10H6Br4O4 | Mass Spec | Chemical | MassBank | |
| TETRABUTYLAMMONIUM BROMIDE | C16H36BrN | Mass Spec | Chemical | MassBank | |
| TETRABUTYLAMMONIUM CHLORIDE | C16H36ClN | Mass Spec | Chemical | MassBank | |
| TETRABUTYLAMMONIUM IODIDE | C16H36IN | Mass Spec | Chemical | MassBank | |
| TETRABUTYLTIN | C16H36Sn | Mass Spec | Chemical | MassBank | |
| TETRACHLORO-1,2-BENZOQUINONE | C6Cl4O2 | Mass Spec | Chemical | MassBank | |
| TETRACHLOROETHYLENE | C2Cl4 | Mass Spec | Chemical | MassBank | |
| TETRACHLOROMETHANE | CCl4 | Mass Spec | Chemical | MassBank | |
| TETRACHLOROPHTHALIC ACID DIMETHY ESTER | C10H6Cl4O4 | Mass Spec | Chemical | MassBank | |
| TETRACHLOROPHTHALIC ANHYDRIDE | C8Cl4O3 | Mass Spec | Chemical | MassBank | |
| TETRACOSANE | C24H50 | Mass Spec | Chemical | MassBank | |
| TETRACOSANOIC ACID | C24H48O2 | Mass Spec | Chemical | MassBank | |
| TETRACOSANOIC ACID BUTYL ESTER | C28H56O2 | Mass Spec | Chemical | MassBank | |
| TETRACOSANOIC ACID HEXYL ESTER | C30H60O2 | Mass Spec | Chemical | MassBank | |
| TETRADECAMETHYLHEXASILANE | C14H42Si6 | Mass Spec | Chemical | MassBank | |
| TETRADECAN-2-OL | C14H30O | Mass Spec | Chemical | MassBank | |
| TETRADECANAL | C14H28O | Mass Spec | Chemical | MassBank | |
| TETRADECANAL O-2,3,4,5,6-PENTAFLUOROBENZYLOXIME | C21H30F5NO | Mass Spec | Chemical | MassBank | |
| TETRADECANE | C14H30 | Mass Spec | Chemical | MassBank | |
| TETRADECANEDIOIC ACID BIS(TRIMETHYLSILYL)ESTER | C20H42O4Si2 | Mass Spec | Chemical | MassBank | |
| TETRADECANOL | C14H30O | Mass Spec | Chemical | MassBank | |
| TETRADECYL ACETATE | C16H32O2 | Mass Spec | Chemical | MassBank | |
| TETRADECYL BROMIDE | C14H29Br | Mass Spec | Chemical | MassBank | |
| TETRAETHOXYMETHANE | C9H20O4 | Mass Spec | Chemical | MassBank | |
| TETRAETHOXYSILANE | C8H20O4Si | Mass Spec | Chemical | MassBank | |
| TETRAETHYL PYROPHOSPHATE | C8H20O7P2 | Mass Spec | Chemical | MassBank | |
| TETRAETHYL TIN | C8H20Sn | Mass Spec | Chemical | MassBank | |
| TETRAETHYL-2-TETRAZENE | C8H20N4 | Mass Spec | Chemical | MassBank | |
| TETRAETHYLAMMONIUM BROMIDE | C8H20BrN | Mass Spec | Chemical | MassBank | |
| TETRAETHYLAMMONIUM IODIDE | C8H20IN | Mass Spec | Chemical | MassBank | |
| TETRAFLUORODIAZIRIDINE | CF4N2 | Mass Spec | Chemical | MassBank | |
| TETRAFLUOROFORMAMIDINE DIMER | C2F8N4 | Mass Spec | Chemical | MassBank | |
| TETRAHYDRO-2-PYRONE | C5H8O2 | Mass Spec | Chemical | MassBank | |
| TETRAHYDRO-BETA-NAPHTHYLACETATE | C12H14O2 | Mass Spec | Chemical | MassBank | |
| TETRAHYDROCORTICOSTERONE | C21H34O4 | Mass Spec | Chemical | MassBank | |
| TETRAHYDROCORTISONE | C21H32O5 | Mass Spec | Chemical | MassBank | |
| TETRAHYDROFURAN | C4H8O | Mass Spec | Chemical | MassBank | |
| TETRAHYDROFURFURYL 9-OCTADECENOATE | C23H42O3 | Mass Spec | Chemical | MassBank |