Reference Spectral Library

Browse reference spectra from the USGS Spectral Library Version 7 and other curated sources. Each spectrum includes interactive plots, metadata, and downloadable data.

	Formula	Modality	Category	Source
(4-Methoxybut-2-en-1-yl)(phenyl)sulfane	C11H14OS	Mass Spec	Chemical	MassBank
(4-PHENYL-2-BUTENYL)TRIMETHYLSILANE	C13H20Si	Mass Spec	Chemical	MassBank
(4-PHENYL-3-BUTENYL)TRIMETHYLSILANE	C13H20Si	Mass Spec	Chemical	MassBank
(4ALPHA)-ACETYL-1(2H)-METHYLENE-3,4,4A,5,6,7,8,(8AALPHA)-OCTAHYDRONAPHTHALENE	C13H20O	Mass Spec	Chemical	MassBank
(4AS,5S)-(+)-1,4ABETA-DIMETHYL-5BETA((P-BROMOBENZOYL)OXY)-4,4A,5,6,7,8-HEXAHYDRONAPHTHALEN-2(3H)-ONE	C19H21BrO3	Mass Spec	Chemical	MassBank
(4AS,5S,8AS)-(+)-5BETA,8ABETA-DIMETHYL-2-FORMYL-5ALPHA-(4-METHYL-3-PENTENYL)-4A,5,6,7,8,8A-HEXAHYDRONAPHTHALEN-1(4H)-ONE	C19H28O2	Mass Spec	Chemical	MassBank
(4AS,5S,8AS)-(-)-5ALPHA-(3-HYDROXYPROPYL)-8A-METHOXYMETHOXYMETHYL-5BETA-METHYL-3,4,4A,5,6,7,8,8A-OCTAHYDRONAPHTHALEN-1(2H)-ONE1-ETHYLENE ACETAL	C19H34O5	Mass Spec	Chemical	MassBank
(4AS,5S,8AS)-(-)-5BETA,8ABETA-DIMETHYL-2-ETHYLENEDIOXYMETHYL-5ALPHA-(4-METHYL-3-PENTENYL)-4A,5,6,7,8,8AALPHA-HEXAHYDRONAPHTHALEN-1(4H)-ONE	C21H32O3	Mass Spec	Chemical	MassBank
(4AS,5S,8AS)-(-)-5BETA,8ABETA-DIMETHYL-5AALPHA-(4-METHYL-3-PENTENYL)-3,4,4A,5,6,7,8,8A-OCTAHYDRONAPHTHALEN-1(2H)-ONE	C20H34O2	Mass Spec	Chemical	MassBank
(4AS,5S,8AS)-(-)-5BETA,8ABETA-DIMETHYL-5ALPHA-(4-METHYL-3-PENTENYL)-3,4,4A,5,6,7,8,8A-OCTAHYDRONAPHTHALEN-1(2H)-ONE	C18H30O	Mass Spec	Chemical	MassBank
(4AS,5S,8AS)-(-)-8ABETA-METHOXYMETHOXYMETHYL-5BETA-METHYL-5ALPHA-(4-METHYL-3-PENTENYL)-3,4,4A,5,6,7,8,8A-OCTAHYDRONAPHTHALEN-1(2H)-ONE 1-ETHYLENE ACETAL	C22H38O4	Mass Spec	Chemical	MassBank
(4AS,5S,8AS)-5ALPHA-ALLYL-8A-METHOXYMETHOXYMETHYL-5BETA-METHYL-3,4,4A,5,6,7,8,8A-OCTAHYDRONAPHTHALEN-1(2H)-ONE	C17H28O3	Mass Spec	Chemical	MassBank
(4AS,5S,8AS)-5BETA-METHYL-8ABETA-HYDROXY-5BETA-(4-METHYL-3-PENTENYL)-3,4,4A,5,6,7,8,8A-OCTAHYDRONAPHTHALEN-1(2H)-ONE	C18H30O2	Mass Spec	Chemical	MassBank
(4AS,5S,8AS)-8ABETA-FORMYL-5BETA-METHYL-5ALPHA-(4-METHYL-3-PENTENYL)-3,4,4A,5,6,7,8,8A-OCTAHYDRONAPHTHALEN-1(2H)-ONE	C18H28O2	Mass Spec	Chemical	MassBank
(4AS,5S,8AS)-8ABETA-METHOXYMETHOXYMETHYL-5BETA-METHYL-5ALPHA-(3-OXOPROPYL)-3,4,4A,5,6,7,8,8A-OCTAHYDRONAPHTHALEN-1(2H)-ONE 1-ETHYLENE ACETAL	C19H32O5	Mass Spec	Chemical	MassBank
(4BETA)-CARBOMETHOXY-1(2H)-METHYLENE-3,4,(4ABETA),5,8,(8AALPHA)-HEXAHYDRONAPHTHALENEETHYLENE ACETAL	C15H22O4	Mass Spec	Chemical	MassBank
(4BETA)-HYDROXYMETHYL-1(2H)-METHYLENE-3,4,(4ABETA),5,8,(8AALPHA)-HEXAHYDRONAPHTHALENE-6(7H)-ONE ETHYLENE ACETAL	C14H22O3	Mass Spec	Chemical	MassBank
(4BETA)-ISOPROPENYL-1(2H)-METHYLENE-3,4,(4ABETA),5,8,(8AALPHA)-HEXAHYDRONAPHTHALENE-6(7H)-ONE ETHYLENE ACETAL	C16H24O2	Mass Spec	Chemical	MassBank
(4BR,8AS)-(+)-4B,5,6,7,8,8A,9,10-OCTAHYDRO-2-ISOPROPYL-4B-((METHOXYMETHOXY)METHYL)-8,8-DIMETHYLPHENANTHREN-3-OL	C22H34O3	Mass Spec	Chemical	MassBank
(4E,8E,13E)-1-(2-HYDROXYETHYL)-1,5,9-TRIMETHYLCYCLOTETRADECATRIENE	C19H32O	Mass Spec	Chemical	MassBank
(4E,8E,13E)-METHYL 1,5,9-TRIMETHYLCYCLOTETRADECATRIENEACETATE	C20H32O2	Mass Spec	Chemical	MassBank
(4R)-1,1-DIBROMO-4-(TERT-BUTYLDIMETHYLSILOXY)-7-METHYL-1,7-OCTADIENE	C15H28Br2OSi	Mass Spec	Chemical	MassBank
(4R)-1-ACETOXY-4-(TERT-BUTYLDIMETHYLSILYLOXY)-5-PIVALOYLOXYHEXENE	C19H36O5Si	Mass Spec	Chemical	MassBank
(4R)-2,2-DIMETHYL-1,3-THIAZOLIDINE-4-CARBOXYLIC ACID	C6H11NO2S	Mass Spec	Chemical	MassBank
(4R)-2-OXO-1,3-THIAZOLIDINE-4-CARBOXYLIC ACID	C4H5NO3S	Mass Spec	Chemical	MassBank
(4R)-3-(TERT-BUTOXYCARBONYL)-4-HYDROXYMETHYL-2,2-DIMETHYL-1,3-THIAZOLIDINE	C11H21NO3S	Mass Spec	Chemical	MassBank
(4R)-3-TERT-BUTOXYCARBONYL-2,2-DIMETHYLTHIAZOLIDINE-4-CARBOXYLIC ACID	C11H19NO4S	Mass Spec	Chemical	MassBank
(4R)-4-Methyl-6-benzyloxyhexanal	C14H20O2	Mass Spec	Natural product	MassBank
(4R)-4-Methyl-6-benzyloxyhexanol	C14H22O2	Mass Spec	Natural product	MassBank
(4R)-4-Methyl-6-heptenyl pivalate	C13H24O2	Mass Spec	Natural product	MassBank
(4R)-4-Methyl-6-pivaloyloxyhexanal	C12H22O3	Mass Spec	Natural product	MassBank
(4R)-4-Methylheptanoic acid	C8H16O2	Mass Spec	Natural product	MassBank
(4R)-4-Methylnonanoic acid	C10H20O2	Mass Spec	Natural product	MassBank
(4R)-4-Methylnonanol	C10H22O	Mass Spec	Natural product	MassBank
(4R)-4-Methyloctanoic acid	C9H18O2	Mass Spec	Natural product	MassBank
(4R)-Ethyl 4-methylheptanoate	C10H20O2	Mass Spec	Natural product	MassBank
(4R)-PERHYDRO-3-BENZYL-4-((E)-STYRYL)-1,3-OXAZIN-2-ONE	C19H19NO2	Mass Spec	Chemical	MassBank
(4R,5R,6R*)-4-(ETHOXYCARBONYL)METHYL-5-(TRIETHYLSILYL)OXY-6-METHYLPERHYDRO-1,3-OXAZINE-2-ONE	C15H29NO5Si	Mass Spec	Chemical	MassBank
(4R,5R)-4,5-BIS(ETHOXYCARBONYL)-2,2-DIMETHYL-1,3-DIOXOLANE	C11H18O6	Mass Spec	Chemical	MassBank
(4S)-1-BENZYL-4-((E)-STYRYL)-2-AZETIDINONE	C18H17NO	Mass Spec	Chemical	MassBank
(4S)-4-Methyl-6-benzyloxyhexanal	C14H20O2	Mass Spec	Natural product	MassBank
(4S)-4-Methyl-6-benzyloxyhexanol	C14H22O2	Mass Spec	Natural product	MassBank
(4S)-4-Methyl-6-heptenyl pivalate	C13H24O2	Mass Spec	Natural product	MassBank
(4S)-4-Methyl-6-pivaloyloxyhexanal	C12H22O3	Mass Spec	Natural product	MassBank
(4S)-4-Methylheptanoic acid	C8H16O2	Mass Spec	Natural product	MassBank
(4S)-4-Methylnonanoic acid	C10H20O2	Mass Spec	Natural product	MassBank
(4S)-4-Methylnonanol	C10H22O	Mass Spec	Natural product	MassBank
(4S)-4-Methyloctanoic acid	C9H18O2	Mass Spec	Natural product	MassBank
(4S)-Ethyl 4-methylheptanoate	C10H20O2	Mass Spec	Natural product	MassBank
(4S)-PERHYDRO-3-BENZYL-4-METHYL-1,3-OXAZIN-2-ONE	C12H15NO2	Mass Spec	Chemical	MassBank

Reference Spectral Library

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