| CAS No. | 158518-97-9 |
| Molecular Formula | C21H22N2O6 |
| Molecular Weight | 398.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
3,3,3',3'-Tetramethyl-5,5'-dinitro-2,2',3,3'-tetrahydro-1,1'-spirobi[indene]-6,6'-diol (CAS 158518-97-9) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C21H22N2O6. Molecular weight: 398.41 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
| Molecular Formula | C21H22N2O6 |
| Molecular Weight | 398.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 2 |