| parent | Volatiles | LP18221-9 |
| child | 4-Hydroxy 3-Nitrophenylacetate (HNPAA) | Urine | Drug toxicology | LP387786-9 |
| STATUS | ACTIVE |
| PartDisplayName | en-US | 4-Hydroxy 3-Nitrophenylacetate |
| DisplayName | en-US | 4-Hydroxy 3-Nitrophenylacetate (HNPAA) |
LOINC Version: 2.78