1,3,6,8-Tetranitro-9H-carbazole CAS 4543-33-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4543-33-3 |
| Molecular Formula | C12H5N5O8 |
| Molecular Weight | 347.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,3,6,8-Tetranitro-9H-carbazole (CAS 4543-33-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C12H5N5O8. Molecular weight: 347.20 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C12H5N5O8 |
| Molecular Weight | 347.20 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 5 |
Related Tetranitro Standards
Recommended Standards
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- 94-67-7 Salicylaldoxime Benzaldehyde, 2-hydroxy-, oxime Salicylaldehyde oxime 1-08-00-00520 (Beilstein Handbook Reference) AI3-10566 BRN 1859881 EINECS 202-353-8 o-Hydroxybenzaldehyde oxime 2-Hydroxybenzaldehyde oxime o-Hydroxybenzaldoxime 2-Hydroxybenzaldoxime (2-Hydroxyphenylmethylene)azanol NSC 5057 Saldox Salicylaldehydoxime (CAS 94-67-7)
- 7-(3,5-Dimethylisoxazol-4-yl)-6-methoxy-4-(((R)-1-(pyridin-2-yl)ethyl)amino)quinoline-3-carboxamide (CAS 1300737-69-2)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
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