Description
4-Hydroxy-TEMPO or TEMPOL, formally 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl, is a heterocyclic compound. Like the related TEMPO, it is used as a catalyst and chemical oxidant by virtue of being a stable radical.
| 4-Hydroxy-tempo, 98%+- Properties | |
| Synonyms | 4-Hydroxy-2,2,6,6-tetramethylpiperidine 1-oxyl, TEMPOL |
| Categories | Radical Chemistry, Azo compounds |
| Assay | 98%+ |
| Appearance (Form) | Solid to flakes to chunks |
| Appearance (Colour) | Orange to very dark brown to dark orange |
| Melting point | 69~72 °C |
| Water content | Max 0.5% |
| Ethanol solubility | Clear |
| Ash | Max 0.1% |
| 4-Hydroxy-tempo, 95%+- Properties | |
| Synonyms | 4-Hydroxy-2,2,6,6-tetramethylpiperidine 1-oxyl, TEMPOL |
| Categories | Radical Chemistry, Azo compounds |
| Assay | 95%+ |
| Appearance (Form) | Solid to flakes to chunks |
| Appearance (Colour) | Orange to very dark brown to dark orange |
| Melting point | 68-73 °C |
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