| 3,4-Dihydroxyphenylacetaldehyde (DOPAL) DBMET02445 |  | Not Available | 3,4-dihydroxyphenylacetic acid (DOPAC) |  | Details |
| 3,4-Dihydroxyphenylacetaldehyde (DOPAL) DBMET02445 | | Not Available | 3,4-dihydroxyphenylethanol (DOPET) |  | Details |
| 3,4-dihydroxyphenylacetic acid (DOPAC) DBMET02446 | | Catechol O-methyltransferase | Homovanillic acid |  | Details |
| 3,4-Dihydroxyphenylacetone DBMET00637 |  | UDP-glucuronosyltransferases (UGTs) | 3,4-Dihydroxyphenylacetone glucuronide |  | Details |
| 3-(4-carboxybenzylidene)camphor DBMET02092 |  | Not Available | 3-(4-carboxybenzylidene)-6-hydroxycamphor |  | Details |
| 3-(4-hydroxymethylbenzylidene)camphor DBMET02091 |  | Alcohol dehydrogenase [NADP(+)] / Aldehyde dehydrogenase, mitochondrial | 3-(4-carboxybenzylidene)camphor | | Details |
| 3-(piperazine-1-yl)-1,2-benzisothiazole DBMET02989 |  | Not Available | 3-(piperazine-1-yl)-1,2-benzisothiazole sulfoxide |  | Details |
| 3-(piperazine-1-yl)-1,2-benzisothiazole sulfone DBMET02991 |  | Not Available | 3-(piperazine-1-yl)-1,2-benzisothiazole sulfone lactam |  | Details |
| 3-(piperazine-1-yl)-1,2-benzisothiazole sulfoxide DBMET02990 | | Not Available | 3-(piperazine-1-yl)-1,2-benzisothiazole sulfone | | Details |
| 3-alpha-isopravastatin DBMET02469 |  | Not Available | 5,6-epoxy-3-alpha-isopravastatin / 7-hydroxy-3-alpha-isopravastatin |   | Details |
| 3-Carbamoyl-2-phenylpropionaldehyde DBMET01094 |  | Not Available | Atropaldehyde |  | Details |
| 3-Carbamoyl-2-phenylpropionaldehyde DBMET01094 | | Not Available | 4-Hydroxy-5-phenyltetrahydro-1,3-oxazin-2-one |  | Details |
| 3-Carbamoyl-2-phenylpropionaldehyde DBMET01094 | | Aldehyde dehydrogenase, dimeric NADP-preferring | 3-Carbamoyl-2-phenylpropionic acid |  | Details |
| 3-desmethyltrimetazidine DBMET03344 |  | Not Available | 3-desmethyltrimetazidine O-sulphate |  | Details |
| 3-desmethyltrimetazidine DBMET03344 | | Not Available | 3-desmethyltrimetazidine O-glucuronide |  | Details |
| 3-dimethyl thiocolchicoside DBMET03371 |  | Not Available | SL18.0740 |  | Details |
| 3-Hydroxy Pindolol DBMET03287 |  | Not Available | Pindolol 3-glucuronide |  | Details |
| 3-Hydroxy Pindolol DBMET03287 | | Not Available | Pindolol Sulfate |  | Details |
| 3-hydroxy-methyltriazolophthalazine DBMET02823 |  | Not Available | Triazolophthalazine |  | Details |
| 3-hydroxycarbamazepine DBMET00710 |  | Cytochrome P450 2C19 / Cytochrome P450 3A4 / Cytochrome P450 3A5 | 2,3-Dihydroxycarbamazepine |  | Details |
| 3-hydroxydesloratadine DBMET02787 |  | UDP-glucuronosyltransferase 1-1 / UDP-glucuronosyltransferase 1-3 / UDP-glucuronosyltransferase 2B15 | 3-hydroxydesloratadine glucuronide |  | Details |
| 3-hydroxyguanfacine DBMET02968 |  | Not Available | Guanfacine 3-glucuronide |  | Details |
| 3-hydroxyguanfacine DBMET02968 | | Not Available | Guanfacine 3-sulfate |  | Details |
| 3-Hydroxyibuprofen DBMET00155 |  | Cytochrome P450 2C9 | Carboxy-ibuprofen |  | Details |
| 3-hydroxylidocaine DBMET00256 |  | Not Available | 3-Hydroxymonoethylglycinexylidide |  | Details |
| 3-hydroxymethylphenytoin DBMET03216 |  | Not Available | Phenytoin |  | Details |
| 3-Hydroxymorphinan DBMET01318 |  | UDP-glucuronosyltransferases (UGTs) / UDP-glucuronosyltransferase 2B4 / UDP-glucuronosyltransferase 2B7 / UDP-glucuronosyltransferase 2B15 / UDP-glucuronosyltransferase 2B17 | 3-Hydroxymorphinan O-glucuronide |  | Details |
| 3-Hydroxymorphinan DBMET01318 | | Not Available | 3-Hydroxymorphinan sulfate |  | Details |
| 3-Hydroxynevirapine DBMET00077 |  | Not Available | 3-hydroxynevirapine glucuronide |  | Details |
| 3-Hydroxyvalproic acid DBMET00062 |  | Not Available | 3-Oxovalproic acid |  | Details |