| English | eng-000 |
| pyrocatechol | |
| čeština | ces-000 | pyrokatechol |
| 普通话 | cmn-000 | 儿茶酚 |
| 普通话 | cmn-000 | 八茶酚 |
| 普通话 | cmn-000 | 焦儿茶酚 |
| 普通话 | cmn-000 | 邻苯二酚 |
| English | eng-000 | catechin |
| English | eng-000 | catechol |
| English | eng-000 | o-dihydroxy benzene |
| English | eng-000 | o-dihydroxy-benzene |
| English | eng-000 | pyrocatechin |
| English | eng-000 | pyrocatechnic acid |
| English | eng-000 | pyrocatechuic acid |
| русский | rus-000 | пирокатехин |