Oxide of nitrogen (substance)
| Code | 311735009 |
|---|---|
| Semantic tag | substance |
| Module | international |
| Definition | primitive |
| Effective time | 20020131 |
74947009Gaseous substance
substance
11257001Nitrogen compound
substance
6710000Nitric oxide
substance
91424007Nitrogen dioxide
substance
111132001Nitrous oxide
substance