CompoundLookup Search compounds by elements

Chlorine + Oxygen Compounds (Cl + O)

Browse all compounds containing Chlorine + Oxygen by molecular formula, IUPAC name, or traditional name. Explore molecular weights and compound details.

We're currently updating our database. We've sourced 10 million compounds so far, with the full 170 million coming shortly.
Total Compounds: 1,479,729
Showing 1,397,351 - 1,397,400 of 1,479,729
Page 27948 of 29,595
CID Formula IUPAC Name Traditional Name Mol. Weight
6558290 C22H12Cl2N2O6 (1S,3aS,6aR)-5-(2,4-dichlorophenyl)-3-(1,3-dioxoindan-2-ylidene)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-1-carboxylic acid (1S,3aS,6aR)-5-(2,4-dichlorophenyl)-3-(1,3-dioxoindan-2-ylidene)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-1-carboxylic acid 471.2
6558291 C24H16ClF3N4O6 (1S,3aS,6aR)-5-[2-[[3-chloro-5-(trifluoromethyl)-2-pyridyl]amino]ethyl]-3-(1,3-dioxoindan-2-ylidene)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-1-carboxylic acid (1S,3aS,6aR)-5-[2-[[3-chloro-5-(trifluoromethyl)-2-pyridyl]amino]ethyl]-3-(1,3-dioxoindan-2-ylidene)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-1-carboxylic acid 548.9
6558292 C22H19ClN2O2S (1R,2S,7R,8S)-10-(4-chlorophenyl)-7-[(E)-styryl]-4-thia-6,10-diazatricyclo[6.3.0.02,6]undecane-9,11-dione (1R,2S,7R,8S)-10-(4-chlorophenyl)-7-[(E)-styryl]-4-thia-6,10-diazatricyclo[6.3.0.02,6]undecane-9,11-dione 410.9
6558295 C24H17ClN2O6 ethyl (1S,3aR,6aS)-5-(4-chlorophenyl)-3-(1,3-dioxoindan-2-ylidene)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-1-carboxylate ethyl (1S,3aR,6aS)-5-(4-chlorophenyl)-3-(1,3-dioxoindan-2-ylidene)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-1-carboxylate 464.9
6558296 C15H13ClF3N5O4 ethyl (3aR,6aR)-5-[[3-chloro-5-(trifluoromethyl)-2-pyridyl]-methyl-amino]-4,6-dioxo-3a,6a-dihydro-1H-pyrrolo[3,4-c]pyrazole-3-carboxylate ethyl (3aR,6aR)-5-[[3-chloro-5-(trifluoromethyl)-2-pyridyl]-methyl-amino]-4,6-dioxo-3a,6a-dihydro-1H-pyrrolo[3,4-c]pyrazole-3-carboxylate 419.74
6558297 C16H15ClF3N5O4 ethyl (3aR,6aR)-5-[2-[[3-chloro-5-(trifluoromethyl)-2-pyridyl]amino]ethyl]-4,6-dioxo-3a,6a-dihydro-1H-pyrrolo[3,4-c]pyrazole-3-carboxylate ethyl (3aR,6aR)-5-[2-[[3-chloro-5-(trifluoromethyl)-2-pyridyl]amino]ethyl]-4,6-dioxo-3a,6a-dihydro-1H-pyrrolo[3,4-c]pyrazole-3-carboxylate 433.77
6558301 C19H16ClF2N3O2 ethyl (2S)-3-(2-chloro-6-fluoro-phenyl)-2-[2-(6-fluoro-2-pyridyl)pyrazol-3-yl]propanoate ethyl (2S)-3-(2-chloro-6-fluoro-phenyl)-2-[2-(6-fluoro-2-pyridyl)pyrazol-3-yl]propanoate 391.8
6558326 C21H17Cl2N5O4 5-[(5R)-3-(2,4-dichlorophenyl)-4-hydroxy-6-phenyl-5H-1,2,4-triazin-5-yl]-1,3-dimethyl-hexahydropyrimidine-2,4,6-trione 5-[(5R)-3-(2,4-dichlorophenyl)-4-hydroxy-6-phenyl-5H-1,2,4-triazin-5-yl]-1,3-dimethyl-hexahydropyrimidine-2,4,6-trione 474.3
6558327 C21H18ClN5O4 5-[(5R)-3-(4-chlorophenyl)-4-hydroxy-6-phenyl-5H-1,2,4-triazin-5-yl]-1,3-dimethyl-hexahydropyrimidine-2,4,6-trione 5-[(5R)-3-(4-chlorophenyl)-4-hydroxy-6-phenyl-5H-1,2,4-triazin-5-yl]-1,3-dimethyl-hexahydropyrimidine-2,4,6-trione 439.8
6558353 C20H19Cl2NO (3aS,4S,9bR)-4-(2,4-dichlorophenyl)-6-methoxy-9-methyl-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline (3aS,4S,9bR)-4-(2,4-dichlorophenyl)-6-methoxy-9-methyl-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline 360.3
6558355 C20H18ClNO2 methyl 4-[(3aR,4S,9bS)-6-chloro-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinolin-4-yl]benzoate methyl 4-[(3aR,4S,9bS)-6-chloro-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinolin-4-yl]benzoate 339.8
6558372 C24H17Cl2F3N2O5 N-[[(3aR,4R,7S,7aR)-1,3-dioxo-2-[3-(trifluoromethyl)phenyl]-7,7a-dihydro-3aH-4,7-epoxyisoindol-4-yl]methyl]-2-(2,4-dichlorophenoxy)acetamide N-[[(3aR,4R,7S,7aR)-1,3-dioxo-2-[3-(trifluoromethyl)phenyl]-7,7a-dihydro-3aH-4,7-epoxyisoindol-4-yl]methyl]-2-(2,4-dichlorophenoxy)acetamide 541.3
6558374 C21H24ClN3O4 1-[[(3aR,4R,7S,7aR)-2-(3-chloro-4-methyl-phenyl)-1,3-dioxo-7,7a-dihydro-3aH-4,7-epoxyisoindol-4-yl]methyl]-3-tert-butyl-urea 1-[[(3aR,4R,7S,7aR)-2-(3-chloro-4-methyl-phenyl)-1,3-dioxo-7,7a-dihydro-3aH-4,7-epoxyisoindol-4-yl]methyl]-3-tert-butyl-urea 417.9
6558380 C22H22ClN3O3S N-(4-chlorophenyl)-2-[(5R)-4-oxo-2-phenylimino-3-[[(2S)-tetrahydrofuran-2-yl]methyl]thiazolidin-5-yl]acetamide N-(4-chlorophenyl)-2-[(5R)-4-oxo-2-phenylimino-3-[[(2S)-tetrahydrofuran-2-yl]methyl]thiazolidin-5-yl]acetamide 443.9
6558386 C20H20ClNO4 ethyl (1R,2S,5S,6S,7S)-2-allyl-3-(4-chlorophenyl)-4-oxo-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxylate ethyl (1R,2S,5S,6S,7S)-2-allyl-3-(4-chlorophenyl)-4-oxo-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxylate 373.8
6558424 C17H16ClN3O2 4-[(5R)-6-(4-chlorophenyl)-4-hydroxy-5H-1,2,4-triazin-5-yl]-2,6-dimethyl-phenol 4-[(5R)-6-(4-chlorophenyl)-4-hydroxy-5H-1,2,4-triazin-5-yl]-2,6-dimethyl-phenol 329.8
6558448 C21H21ClN4O3S (6S)-2-[(2E)-2-[1-(4-chlorophenyl)ethylidene]hydrazino]-N-(4-ethoxyphenyl)-4-oxo-5,6-dihydro-1,3-thiazine-6-carboxamide (6S)-2-[(2E)-2-[1-(4-chlorophenyl)ethylidene]hydrazino]-N-(4-ethoxyphenyl)-4-oxo-5,6-dihydro-1,3-thiazine-6-carboxamide 444.9
6558464 C29H22ClN3O3 (1S,2S,3aR)-1-benzoyl-7-chloro-2-(3,4-dimethoxyphenyl)-2,3a-dihydro-1H-pyrrolo[1,2-a]quinoline-3,3-dicarbonitrile 1-BENZOYL-7-CHLORO-2-(3,4-DIMETHOXYPHENYL)-1H,2H,3H,3AH-PYRROLO[1,2-A]QUINOLINE-3,3-DICARBONITRILE 496.0
6558469 C26H20ClNO2 (3aR,4R,7R,7aS)-2-(4-chlorophenyl)-4,7-diphenyl-3a,4,7,7a-tetrahydroisoindole-1,3-dione (3aR,4R,7R,7aS)-2-(4-chlorophenyl)-4,7-diphenyl-3a,4,7,7a-tetrahydroisoindole-1,3-dione 413.9
6558470 C26H20ClNO2 (3aR,4R,7R,7aS)-2-(2-chlorophenyl)-4,7-diphenyl-3a,4,7,7a-tetrahydroisoindole-1,3-dione (3aR,4R,7R,7aS)-2-(2-chlorophenyl)-4,7-diphenyl-3a,4,7,7a-tetrahydroisoindole-1,3-dione 413.9
6558473 C26H23ClN4O2 (4S)-2-amino-1-(3-chloro-2-methyl-phenyl)-7,7-dimethyl-2',5-dioxo-spiro[6,8-dihydroquinoline-4,3'-indoline]-3-carbonitrile (4S)-2-amino-1-(3-chloro-2-methyl-phenyl)-7,7-dimethyl-2',5-dioxo-spiro[6,8-dihydroquinoline-4,3'-indoline]-3-carbonitrile 458.9
6558475 C20H13Cl2FOS (1aR,7R,7aR)-1,1-dichloro-7-(4-fluorophenyl)-1a-(2-thienyl)-7,7a-dihydrocyclopropa[b]chromene (1aR,7R,7aR)-1,1-dichloro-7-(4-fluorophenyl)-1a-(2-thienyl)-7,7a-dihydrocyclopropa[b]chromene 391.3
6558489 C20H26ClN3O3 ethyl (4S)-4-(4-chlorophenyl)-6-[[(2R)-2-methyl-1-piperidyl]methyl]-2-oxo-3,4-dihydro-1H-pyrimidine-5-carboxylate ethyl (4S)-4-(4-chlorophenyl)-6-[[(2R)-2-methyl-1-piperidyl]methyl]-2-oxo-3,4-dihydro-1H-pyrimidine-5-carboxylate 391.9
6558501 C17H16ClN3O3S (1S,2R,5R)-2-[4-allyl-3-(2-chlorophenyl)-5-thioxo-1,2,4-triazol-1-yl]-6,8-dioxabicyclo[3.2.1]octan-4-one (1S,2R,5R)-2-[4-allyl-3-(2-chlorophenyl)-5-thioxo-1,2,4-triazol-1-yl]-6,8-dioxabicyclo[3.2.1]octan-4-one 377.8
6558507 C28H24ClN3O3 (1R,3S,3aR,6aR)-1-benzyl-1'-[(2-chlorophenyl)methyl]-5-methyl-spiro[1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3,3'-indoline]-2',4,6-trione (1R,3S,3aR,6aR)-1-benzyl-1'-[(2-chlorophenyl)methyl]-5-methyl-spiro[1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3,3'-indoline]-2',4,6-trione 486.0
6558519 C28H29Cl2NO5S diethyl (4S,6R,7R)-4-(2,3-dichlorophenyl)-5-oxo-2-propyl-7-(2-thienyl)-4,6,7,8-tetrahydro-1H-quinoline-3,6-dicarboxylate diethyl (4S,6R,7R)-4-(2,3-dichlorophenyl)-5-oxo-2-propyl-7-(2-thienyl)-4,6,7,8-tetrahydro-1H-quinoline-3,6-dicarboxylate 562.5
6558520 C28H29Cl2NO5S diethyl (4S,6R,7R)-4-(2,6-dichlorophenyl)-5-oxo-2-propyl-7-(2-thienyl)-4,6,7,8-tetrahydro-1H-quinoline-3,6-dicarboxylate diethyl (4S,6R,7R)-4-(2,6-dichlorophenyl)-5-oxo-2-propyl-7-(2-thienyl)-4,6,7,8-tetrahydro-1H-quinoline-3,6-dicarboxylate 562.5
6558541 C24H21Cl2NO5S dimethyl (4S,6R,7R)-4-(2,3-dichlorophenyl)-2-methyl-5-oxo-7-(2-thienyl)-4,6,7,8-tetrahydro-1H-quinoline-3,6-dicarboxylate dimethyl (4S,6R,7R)-4-(2,3-dichlorophenyl)-2-methyl-5-oxo-7-(2-thienyl)-4,6,7,8-tetrahydro-1H-quinoline-3,6-dicarboxylate 506.4
6558547 C17H20BrClN4O2 [(1R,9aS)-2,3,4,6,7,8,9,9a-octahydro-1H-quinolizin-1-yl]methyl 6-bromo-3-chloro-pyrazolo[1,5-a]pyrimidine-2-carboxylate [(1R,9aS)-2,3,4,6,7,8,9,9a-octahydro-1H-quinolizin-1-yl]methyl 6-bromo-3-chloro-pyrazolo[1,5-a]pyrimidine-2-carboxylate 427.7
6558554 C24H24ClF3N4O2 [(1R,9aS)-2,3,4,6,7,8,9,9a-octahydro-1H-quinolizin-1-yl]methyl 5-(4-chlorophenyl)-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylate [(1R,9aS)-2,3,4,6,7,8,9,9a-octahydro-1H-quinolizin-1-yl]methyl 5-(4-chlorophenyl)-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylate 492.9
6558555 C17H17ClN2O4S N-(3-chlorophenyl)-3-[[(3S,4S)-4-hydroxy-1,1-dioxo-thiolan-3-yl]amino]benzamide N-(3-chlorophenyl)-3-[[(3S,4S)-4-hydroxy-1,1-dioxo-thiolan-3-yl]amino]benzamide 380.8
6558570 C15H11ClN4O2 (1'S,5'S,6'R)-2'-amino-6'-(4-chlorophenyl)spiro[1,3-dioxolane-2,4'-3-azabicyclo[3.1.0]hex-2-ene]-1',5'-dicarbonitrile (1'S,5'S,6'R)-2'-amino-6'-(4-chlorophenyl)spiro[1,3-dioxolane-2,4'-3-azabicyclo[3.1.0]hex-2-ene]-1',5'-dicarbonitrile 314.72
6558578 C23H18ClN3O3 (1R,3R,3aR,6aS)-5-(3-chlorophenyl)-1-methyl-1'-prop-2-ynyl-spiro[1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3,3'-indoline]-2',4,6-trione (1R,3R,3aR,6aS)-5-(3-chlorophenyl)-1-methyl-1'-prop-2-ynyl-spiro[1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3,3'-indoline]-2',4,6-trione 419.9
6558580 C22H19BrClN3O3 (1R,3R,3aR,6aS)-1'-(2-bromoethyl)-5-(3-chlorophenyl)-1-methyl-spiro[1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3,3'-indoline]-2',4,6-trione (1R,3R,3aR,6aS)-1'-(2-bromoethyl)-5-(3-chlorophenyl)-1-methyl-spiro[1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3,3'-indoline]-2',4,6-trione 488.8
6558584 C30H26ClN3O3 (1R,3R,3aS,6aR)-1-benzyl-5-(3-chlorophenyl)-1'-(2-methylallyl)spiro[1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3,3'-indoline]-2',4,6-trione (1R,3R,3aS,6aR)-1-benzyl-5-(3-chlorophenyl)-1'-(2-methylallyl)spiro[1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3,3'-indoline]-2',4,6-trione 512.0
6558587 C26H15ClFNO5 (1S,3aS,6aR)-1-(4-chlorophenyl)-5-(2-fluorophenyl)spiro[3a,6a-dihydro-1H-furo[3,4-c]pyrrole-3,2'-indane]-1',3',4,6-tetrone (1S,3aS,6aR)-1-(4-chlorophenyl)-5-(2-fluorophenyl)spiro[3a,6a-dihydro-1H-furo[3,4-c]pyrrole-3,2'-indane]-1',3',4,6-tetrone 475.8
6558592 C18H15Cl2FO2 (1aR,2R,7bS)-1,1-dichloro-7b-ethoxy-2-(4-fluorophenyl)-1a,2-dihydrocyclopropa[c]chromene (1aR,2R,7bS)-1,1-dichloro-7b-ethoxy-2-(4-fluorophenyl)-1a,2-dihydrocyclopropa[c]chromene 353.2
6558597 C26H25ClN2O4 N-[[(3aR,4R,7S,7aS)-2-(4-chlorophenyl)-1,3-dioxo-7,7a-dihydro-3aH-4,7-epoxyisoindol-4-yl]methyl]-4-tert-butyl-benzamide N-[[(3aR,4R,7S,7aS)-2-(4-chlorophenyl)-1,3-dioxo-7,7a-dihydro-3aH-4,7-epoxyisoindol-4-yl]methyl]-4-tert-butyl-benzamide 464.9
6558604 C22H18ClN3O2 (5S,10bR)-9-chloro-2-(4-methoxyphenyl)-5-(3-pyridyl)-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine (5S,10bR)-9-chloro-2-(4-methoxyphenyl)-5-(3-pyridyl)-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine 391.8
6558610 C18H14ClN3O4S2 (3S,7aS)-6-(3-chloro-4-methoxy-phenyl)-3-(3-nitrophenyl)-5-thioxo-3,7a-dihydro-1H-imidazo[1,5-c]thiazol-7-one (3S,7aS)-6-(3-chloro-4-methoxy-phenyl)-3-(3-nitrophenyl)-5-thioxo-3,7a-dihydro-1H-imidazo[1,5-c]thiazol-7-one 435.9
6558613 C27H21ClFN3O3 (1R,3R,3aR,6aS)-5-(3-chlorophenyl)-1'-[(4-fluorophenyl)methyl]-1-methyl-spiro[1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3,3'-indoline]-2',4,6-trione (1R,3R,3aR,6aS)-5-(3-chlorophenyl)-1'-[(4-fluorophenyl)methyl]-1-methyl-spiro[1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3,3'-indoline]-2',4,6-trione 489.9
6558617 C27H21ClFN3O3 (1R,3R,3aR,6aS)-5-(4-chlorophenyl)-1'-[(4-fluorophenyl)methyl]-1-methyl-spiro[1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3,3'-indoline]-2',4,6-trione (1R,3R,3aR,6aS)-5-(4-chlorophenyl)-1'-[(4-fluorophenyl)methyl]-1-methyl-spiro[1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3,3'-indoline]-2',4,6-trione 489.9
6558623 C19H18ClNO4 (1S,2R,5S,6S,7R)-3-(3-chlorophenyl)-2-(2-methylallyl)-4-oxo-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxylic acid (1S,2R,5S,6S,7R)-3-(3-chlorophenyl)-2-(2-methylallyl)-4-oxo-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxylic acid 359.8
6558628 C25H28ClN7O (1S,9R)-11-[4-(4-chloroanilino)-6-(1-piperidyl)-1,3,5-triazin-2-yl]-7,11-diazatricyclo[7.3.1.02,7]trideca-2,4-dien-6-one (1S,9R)-11-[4-(4-chloroanilino)-6-(1-piperidyl)-1,3,5-triazin-2-yl]-7,11-diazatricyclo[7.3.1.02,7]trideca-2,4-dien-6-one 478.0
6558637 C24H26ClN7O2 (1S,9R)-11-[4-(4-chloroanilino)-6-morpholino-1,3,5-triazin-2-yl]-7,11-diazatricyclo[7.3.1.02,7]trideca-2,4-dien-6-one (1S,9R)-11-[4-(4-chloroanilino)-6-morpholino-1,3,5-triazin-2-yl]-7,11-diazatricyclo[7.3.1.02,7]trideca-2,4-dien-6-one 480.0
6558640 C25H18ClF4N3O (4R)-4-[1-[(2-chloro-6-fluoro-phenyl)methyl]benzimidazol-2-yl]-1-[3-(trifluoromethyl)phenyl]pyrrolidin-2-one (4R)-4-[1-[(2-chloro-6-fluoro-phenyl)methyl]benzimidazol-2-yl]-1-[3-(trifluoromethyl)phenyl]pyrrolidin-2-one 487.9
6558642 C25H20Cl2N2O4 (3R,3aS,6aR)-5-(3,5-dichlorophenyl)-3-(4-methoxyphenyl)-3a-methyl-2-phenyl-3,6a-dihydropyrrolo[3,4-d]isoxazole-4,6-dione (3R,3aS,6aR)-5-(3,5-dichlorophenyl)-3-(4-methoxyphenyl)-3a-methyl-2-phenyl-3,6a-dihydropyrrolo[3,4-d]isoxazole-4,6-dione 483.3
6558643 C26H23ClN2O4 (3R,3aR,6aS)-5-(3-chloro-4-methyl-phenyl)-3-(4-methoxyphenyl)-3a-methyl-2-phenyl-3,6a-dihydropyrrolo[3,4-d]isoxazole-4,6-dione (3R,3aR,6aS)-5-(3-chloro-4-methyl-phenyl)-3-(4-methoxyphenyl)-3a-methyl-2-phenyl-3,6a-dihydropyrrolo[3,4-d]isoxazole-4,6-dione 462.9
6558645 C23H16Cl2N2O3 (3R,3aR,6aS)-5-(2-chlorophenyl)-3-(4-chlorophenyl)-2-phenyl-3a,6a-dihydro-3H-pyrrolo[3,4-d]isoxazole-4,6-dione (3R,3aR,6aS)-5-(2-chlorophenyl)-3-(4-chlorophenyl)-2-phenyl-3a,6a-dihydro-3H-pyrrolo[3,4-d]isoxazole-4,6-dione 439.3
6558648 C23H15BrCl2N2O3 (3R,3aR,6aS)-3-(3-bromophenyl)-5-(3,5-dichlorophenyl)-2-phenyl-3a,6a-dihydro-3H-pyrrolo[3,4-d]isoxazole-4,6-dione (3R,3aR,6aS)-3-(3-bromophenyl)-5-(3,5-dichlorophenyl)-2-phenyl-3a,6a-dihydro-3H-pyrrolo[3,4-d]isoxazole-4,6-dione 518.2

Related Element Combinations

Explore other compound combinations that include similar elements. Discover more chemistry by browsing related searches.

Looking for a specific combination?

Select any elements from the periodic table and discover all known compounds instantly.

NIH

Data Sourced from PubChem

All compound data on CompoundLookup comes from PubChem, the world's largest free chemistry database maintained by the National Institutes of Health (NIH). We've indexed and organized this data to enable element-based searching - a feature not available on any other platform. We're constantly adding more compounds and improving our coverage. Learn more about our mission.