Nitrogen + Oxygen Compounds (N + O)
Browse all compounds containing Nitrogen + Oxygen by molecular formula, IUPAC name, or traditional name. Explore molecular weights and compound details.
| CID | Formula | IUPAC Name | Traditional Name | Mol. Weight |
|---|---|---|---|---|
| 471439 | C29H39NO7S2 | [5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-methyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] N-tert-butylsulfamate | [5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-methyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] N-tert-butylsulfamate | 577.8 |
| 471441 | C32H43NO7S2 | [5-tert-butyl-4-[[2-cyclohexyl-6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] N-ethylsulfamate | [5-tert-butyl-4-[[2-cyclohexyl-6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] N-ethylsulfamate | 617.8 |
| 471443 | C25H31NO4S | 5-(4-amino-2-tert-butyl-5-methyl-phenyl)sulfanyl-6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-methyl-3H-pyran-4-one | 5-(4-amino-2-tert-butyl-5-methyl-phenyl)sulfanyl-6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-methyl-3H-pyran-4-one | 441.6 |
| 471444 | C32H34N2O6S2 | N-[5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-methyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl]-4-cyano-benzenesulfonamide | N-[5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-methyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl]-4-cyano-benzenesulfonamide | 606.8 |
| 471447 | C34H41NO8S2 | [5-tert-butyl-4-[[6-hydroxy-2,2-bis[2-(3-hydroxyphenyl)ethyl]-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] N,N-dimethylsulfamate | [5-tert-butyl-4-[[6-hydroxy-2,2-bis[2-(3-hydroxyphenyl)ethyl]-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] N,N-dimethylsulfamate | 655.8 |
| 471449 | C33H40N2O4S | 2,2-bis[2-(4-aminophenyl)ethyl]-5-[2-tert-butyl-4-(hydroxymethyl)-5-methyl-phenyl]sulfanyl-6-hydroxy-3H-pyran-4-one | 2,2-bis[2-(4-aminophenyl)ethyl]-5-[2-tert-butyl-4-(hydroxymethyl)-5-methyl-phenyl]sulfanyl-6-hydroxy-3H-pyran-4-one | 560.7 |
| 471450 | C38H49N3O7S2 | [5-tert-butyl-4-[[6-hydroxy-4-oxo-2-(2-phenylethyl)-2-[4-(2-piperazin-1-ylethoxy)phenyl]-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] N,N-dimethylsulfamate | [5-tert-butyl-4-[[6-hydroxy-4-oxo-2-(2-phenylethyl)-2-[4-(2-piperazin-1-ylethoxy)phenyl]-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] N,N-dimethylsulfamate | 723.9 |
| 471451 | C34H41NO8S2 | [5-tert-butyl-4-[[6-hydroxy-2,2-bis[2-(4-hydroxyphenyl)ethyl]-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] N-ethylsulfamate | [5-tert-butyl-4-[[6-hydroxy-2,2-bis[2-(4-hydroxyphenyl)ethyl]-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] N-ethylsulfamate | 655.8 |
| 471452 | C34H43N3O6S2 | [4-[[2,2-bis[2-(4-aminophenyl)ethyl]-6-hydroxy-4-oxo-3H-pyran-5-yl]sulfanyl]-5-tert-butyl-2-methyl-phenyl] N-ethylsulfamate | [4-[[2,2-bis[2-(4-aminophenyl)ethyl]-6-hydroxy-4-oxo-3H-pyran-5-yl]sulfanyl]-5-tert-butyl-2-methyl-phenyl] N-ethylsulfamate | 653.9 |
| 471453 | C37H46N2O8S2 | [5-tert-butyl-4-[[6-hydroxy-2,2-bis[2-(4-hydroxyphenyl)ethyl]-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] 4-methylpiperazine-1-sulfonate | [5-tert-butyl-4-[[6-hydroxy-2,2-bis[2-(4-hydroxyphenyl)ethyl]-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] 4-methylpiperazine-1-sulfonate | 710.9 |
| 471454 | C30H40N2O7S2 | [5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-methyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] 4-methylpiperazine-1-sulfonate | [5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-methyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] 4-methylpiperazine-1-sulfonate | 604.8 |
| 471455 | C36H44N2O4S | 5-(2-tert-butyl-5-methyl-phenyl)sulfanyl-6-hydroxy-2-(2-phenylethyl)-2-[4-(2-piperazin-1-ylethoxy)phenyl]-3H-pyran-4-one | 5-(2-tert-butyl-5-methyl-phenyl)sulfanyl-6-hydroxy-2-(2-phenylethyl)-2-[4-(2-piperazin-1-ylethoxy)phenyl]-3H-pyran-4-one | 600.8 |
| 471456 | C25H31NO7S2 | [5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-methyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] sulfamate | [5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-methyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] sulfamate | 521.6 |
| 471457 | C37H46N2O8S2 | [5-tert-butyl-4-[[6-hydroxy-2-[4-(2-hydroxyethoxy)phenyl]-4-oxo-2-(2-phenylethyl)-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] 4-methylpiperazine-1-sulfonate | [5-tert-butyl-4-[[6-hydroxy-2-[4-(2-hydroxyethoxy)phenyl]-4-oxo-2-(2-phenylethyl)-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] 4-methylpiperazine-1-sulfonate | 710.9 |
| 471458 | C35H43NO10S2 | [5-tert-butyl-4-[[6-hydroxy-2-[4-(2-hydroxyethoxy)phenyl]-2-[2-(4-hydroxy-3-methoxy-phenyl)ethyl]-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] N-ethylsulfamate | [5-tert-butyl-4-[[6-hydroxy-2-[4-(2-hydroxyethoxy)phenyl]-2-[2-(4-hydroxy-3-methoxy-phenyl)ethyl]-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] N-ethylsulfamate | 701.8 |
| 471459 | C34H39NO5S | N-[5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-isopropyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl]benzamide | N-[5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-isopropyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl]benzamide | 573.7 |
| 471462 | C32H44N2O7S2 | [5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-isopropyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] 4-methylpiperazine-1-sulfonate | [5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-isopropyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl] 4-methylpiperazine-1-sulfonate | 632.8 |
| 471463 | C33H34N2O5S | N-[5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-methyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl]-4-cyano-benzamide | N-[5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-methyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl]-4-cyano-benzamide | 570.7 |
| 471464 | C31H34FNO6S2 | N-[5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-methyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl]-4-fluoro-benzenesulfonamide | N-[5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-methyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl]-4-fluoro-benzenesulfonamide | 599.7 |
| 471465 | C32H43NO4S | 2-[2-(4-amino-2-methyl-phenyl)ethyl]-5-[2-tert-butyl-4-(hydroxymethyl)-5-methyl-phenyl]sulfanyl-2-cyclohexyl-6-hydroxy-3H-pyran-4-one | 2-[2-(4-amino-2-methyl-phenyl)ethyl]-5-[2-tert-butyl-4-(hydroxymethyl)-5-methyl-phenyl]sulfanyl-2-cyclohexyl-6-hydroxy-3H-pyran-4-one | 537.8 |
| 471466 | C31H37NO6S3 | N-[5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-isopropyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl]thiophene-2-sulfonamide | N-[5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-isopropyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl]thiophene-2-sulfonamide | 615.8 |
| 471467 | C32H43N3O4S2 | N-[5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-isopropyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl]piperazine-1-carboximidothioic acid | N-[5-tert-butyl-4-[[6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-isopropyl-4-oxo-3H-pyran-5-yl]sulfanyl]-2-methyl-phenyl]piperazine-1-carboximidothioic acid | 597.8 |
| 471468 | C34H38N2O6S2 | [4-[[2-[2-(4-aminophenyl)ethyl]-6-hydroxy-2-isopropyl-4-oxo-3H-pyran-5-yl]sulfanyl]-5-tert-butyl-2-methyl-phenyl] 4-cyanobenzenesulfonate | [4-[[2-[2-(4-aminophenyl)ethyl]-6-hydroxy-2-isopropyl-4-oxo-3H-pyran-5-yl]sulfanyl]-5-tert-butyl-2-methyl-phenyl] 4-cyanobenzenesulfonate | 634.8 |
| 471470 | C32H43N3O8S2 | [4-[[2-(4-acetylpiperazin-1-yl)-6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-4-oxo-3H-pyran-5-yl]sulfanyl]-5-tert-butyl-2-methyl-phenyl] N-ethylsulfamate | [4-[[2-(4-acetylpiperazin-1-yl)-6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-4-oxo-3H-pyran-5-yl]sulfanyl]-5-tert-butyl-2-methyl-phenyl] N-ethylsulfamate | 661.8 |
| 471471 | C29H39NO4S | 5-[2-tert-butyl-4-(dimethylamino)-5-methyl-phenyl]sulfanyl-6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-isopropyl-3H-pyran-4-one | 5-[2-tert-butyl-4-(dimethylamino)-5-methyl-phenyl]sulfanyl-6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-2-isopropyl-3H-pyran-4-one | 497.7 |
| 471478 | C32H37NO5S | 5-(4-amino-2-tert-butyl-5-methyl-phenyl)sulfanyl-6-hydroxy-2,2-bis[2-(4-hydroxyphenyl)ethyl]-3H-pyran-4-one | 5-(4-amino-2-tert-butyl-5-methyl-phenyl)sulfanyl-6-hydroxy-2,2-bis[2-(4-hydroxyphenyl)ethyl]-3H-pyran-4-one | 547.7 |
| 471479 | C27H40N2O3 | (4R,5S,6S,7R)-1-benzyl-3-(cyclohexa-1,5-dien-1-ylmethyl)-5,6-dihydroxy-4,7-diisobutyl-1,3-diazepan-2-one | XN127 | 440.6 |
| 471480 | C35H36N2O7 | (4R,5S,6S,7R)-4,7-bis(1,3-benzodioxol-5-ylmethyl)-1-benzyl-3-(cyclohexa-1,5-dien-1-ylmethyl)-5,6-dihydroxy-1,3-diazepan-2-one | SC120 | 596.7 |
| 471481 | C37H40N2O7 | (4R,5S,6S,7R)-1-benzyl-3-(cyclohexa-1,5-dien-1-ylmethyl)-4,7-bis(2,3-dihydro-1,4-benzodioxin-6-ylmethyl)-5,6-dihydroxy-1,3-diazepan-2-one | SC133 | 624.7 |
| 471482 | C31H48N2O3 | (4R,5S,6S,7R)-1-benzyl-3-(cyclohexa-1,5-dien-1-ylmethyl)-4,7-bis(2-ethylbutyl)-5,6-dihydroxy-1,3-diazepan-2-one | 167826-88-2 | 496.7 |
| 471483 | C29H32N2O5 | (4R,5S,6S,7R)-1-benzyl-3-(cyclohexa-1,5-dien-1-ylmethyl)-4,7-bis(3-furylmethyl)-5,6-dihydroxy-1,3-diazepan-2-one | XV076 | 488.6 |
| 471484 | C37H38N6O3 | (4R,5S,6S,7R)-4,7-dibenzyl-5,6-dihydroxy-1,3-bis[(3-methyl-2H-indazol-5-yl)methyl]-1,3-diazepan-2-one | XZ885 | 614.7 |
| 471485 | C11H14N2O5 | 1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)-3-methylene-tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione | methylenethymidine | 254.24 |
| 471486 | C9H12N4O4 | 5-amino-2-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)-3-methylene-tetrahydrofuran-2-yl]-1,2,4-triazin-3-one | 2'-Deoxy-2'-methylene-6-azacytidine | 240.22 |
| 471487 | C37H56N8O4S2 | (2S)-N-tert-butyl-1-[(2R,3S)-2-hydroxy-3-[[(2S)-2-[[(2-isopropylthiazol-4-yl)methyl-methyl-carbamoyl]amino]-3-methyl-butanoyl]amino]-4-phenyl-butyl]-4-(thiazol-5-ylmethyl)piperazine-2-carboxamide | CHEMBL403511 | 741.0 |
| 471488 | C25H41N9O6 | [(2S,3S,5R)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methyl 5-oxo-5-(1,4,8,11-tetrazacyclotetradec-1-yl)pentanoate | [(2s,3s,5r)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methyl 5-oxo-5-(1,4,8,11-tetrazacyclotetradec-1-yl)pentanoate | 563.7 |
| 471489 | C65H111N13O17 | tritert-butyl 11-[5-[11-[5-[[(2S,3S,5R)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methoxy]-5-oxo-pentyl]-4,8-bis(tert-butoxycarbonyl)-1,4,8,11-tetrazacyclotetradec-1-yl]-5-oxo-pentanoyl]-1,4,8,11-tetrazacyclotetradecane-1,4,8-tricarboxylate | 3'-Azido-3'-deoxy-5'-O-{5-[4,8-bis(tert-butoxycarbonyl)-11-{5-oxo-5-[4,8,11-tris(tert-butoxycarbonyl)-1,4,8,11-tetraazacyclotetradecanyl]pentanoyl}-1,4,8,11-tetraazacyclotetradecanyl]pentanoyl}thymidine | 1346.7 |
| 471490 | C40H71N13O7 | [(2S,3S,5R)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methyl 5-[11-[5-oxo-5-(1,4,8,11-tetrazacyclotetradec-1-yl)pentanoyl]-1,4,8,11-tetrazacyclotetradec-1-yl]pentanoate | [(2s,3s,5r)-3-azido-5-(5-methyl-2,4-dioxo-pyrimidin-1-yl)tetrahydrofuran-2-yl]methyl 5-[11-[5-oxo-5-(1,4,8,11-tetrazacyclotetradec-1-yl)pentanoyl]-1,4,8,11-tetrazacyclotetradec-1-yl]pentanoate | 846.1 |
| 471491 | C28H50N8O2 | [4-(1,4,8,11-tetrazacyclotetradecane-1-carbonyl)phenyl]-(1,4,8,11-tetrazacyclotetradec-1-yl)methanone | CHEMBL81783 | 530.7 |
| 471492 | C33H47N7O5S2 | thiazol-5-ylmethyl N-[(1S)-1-[[(1S,2R)-1-benzyl-3-[(2S)-2-(tert-butylcarbamoyl)-4-(thiazol-5-ylmethyl)piperazin-1-yl]-2-hydroxy-propyl]carbamoyl]-2-methyl-propyl]carbamate | CHEMBL118557 | 685.9 |
| 471493 | C36H50N6O5S | thiazol-5-ylmethyl N-[(1S)-1-[[(1S,2R)-1-benzyl-3-[(2S)-4-benzyl-2-(tert-butylcarbamoyl)piperazin-1-yl]-2-hydroxy-propyl]carbamoyl]-2-methyl-propyl]carbamate | CHEMBL81066 | 678.9 |
| 471494 | C37H53N7O4S | (2S)-4-benzyl-N-tert-butyl-1-[(2R,3S)-2-hydroxy-3-[[(2R)-3-methyl-2-[[methyl(thiazol-5-ylmethyl)carbamoyl]amino]butanoyl]amino]-4-phenyl-butyl]piperazine-2-carboxamide | CHEMBL118234 | 691.9 |
| 471495 | C39H56N6O5S | (2-isopropylthiazol-4-yl)methyl N-[(1S)-1-[[(1S,2R)-1-benzyl-3-[(2S)-4-benzyl-2-(tert-butylcarbamoyl)piperazin-1-yl]-2-hydroxy-propyl]carbamoyl]-2-methyl-propyl]carbamate | CHEMBL324795 | 721.0 |
| 471496 | C40H59N7O4S | (2S)-4-benzyl-N-tert-butyl-1-[(2R,3S)-2-hydroxy-3-[[(2S)-2-[[(2-isopropylthiazol-4-yl)methyl-methyl-carbamoyl]amino]-3-methyl-butanoyl]amino]-4-phenyl-butyl]piperazine-2-carboxamide | CHEMBL118590 | 734.0 |
| 471497 | C39H55FN6O5S | (2-isopropylthiazol-4-yl)methyl N-[(1S)-1-[[(1S,2R)-1-benzyl-3-[(2S)-2-(tert-butylcarbamoyl)-4-[(4-fluorophenyl)methyl]piperazin-1-yl]-2-hydroxy-propyl]carbamoyl]-2-methyl-propyl]carbamate | CHEMBL325018 | 739.0 |
| 471498 | C37H51FN6O5S | (2-methylthiazol-4-yl)methyl N-[(1S)-1-[[(1S,2R)-1-benzyl-3-[(2S)-2-(tert-butylcarbamoyl)-4-[(4-fluorophenyl)methyl]piperazin-1-yl]-2-hydroxy-propyl]carbamoyl]-2-methyl-propyl]carbamate | CHEMBL122011 | 710.9 |
| 471499 | C39H56N6O6S | (2-isopropylthiazol-4-yl)methyl N-[(1S)-1-[[(1S,2R)-1-benzyl-3-[(2S)-2-(tert-butylcarbamoyl)-4-[(3-hydroxyphenyl)methyl]piperazin-1-yl]-2-hydroxy-propyl]carbamoyl]-2-methyl-propyl]carbamate | CHEMBL119283 | 737.0 |
| 471500 | C38H55N7O5S | (2-isopropylthiazol-4-yl)methyl N-[(1S)-1-[[(1S,2R)-1-benzyl-3-[(2S)-2-(tert-butylcarbamoyl)-4-(3-pyridylmethyl)piperazin-1-yl]-2-hydroxy-propyl]carbamoyl]-2-methyl-propyl]carbamate | CHEMBL324033 | 722.0 |
| 471501 | C40H56N6O7S | (2-isopropylthiazol-4-yl)methyl N-[(1S)-1-[[(1S,2R)-3-[(2S)-4-(1,3-benzodioxol-5-ylmethyl)-2-(tert-butylcarbamoyl)piperazin-1-yl]-1-benzyl-2-hydroxy-propyl]carbamoyl]-2-methyl-propyl]carbamate | P70V90DFSK | 765.0 |
| 471502 | C42H57N7O5S | (2-isopropylthiazol-4-yl)methyl N-[(1S)-1-[[(1S,2R)-1-benzyl-3-[(2S)-2-(tert-butylcarbamoyl)-4-(2-quinolylmethyl)piperazin-1-yl]-2-hydroxy-propyl]carbamoyl]-2-methyl-propyl]carbamate | (2-isopropylthiazol-4-yl)methyl N-[(1S)-1-[[(1S,2R)-1-benzyl-3-[(2S)-2-(tert-butylcarbamoyl)-4-(2-quinolylmethyl)piperazin-1-yl]-2-hydroxy-propyl]carbamoyl]-2-methyl-propyl]carbamate | 772.0 |
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.
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.