2-Cyclohexyl-4,6-Dinitrophenol CAS 131-89-5
| CAS No. | 131-89-5 |
| Molecular Formula | C12H14N2O5 |
| Molecular Weight | 266.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Cyclohexyl-4,6-Dinitrophenol (CAS 131-89-5) is a high-purity analytical reference standard with the molecular formula C12H14N2O5 and a molecular weight of 266.25 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 2-Cyclohexyl-4,6-Dinitrophenol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 266.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H14N2O5 |
| Molecular Weight | 266.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- Protirelin EP Impurity C (CAS 32159-22-1)
- 5-(2-Methoxyphenyl)-1,2,4-triazin-3-amine (CAS 1094231-72-7)
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- Chromium(III) 2-ethylhexanoate (CAS 3444-17-5)
- Tiamulin EP Impurity K (CAS 31716-11-7)
- 3,7-Dimethyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 4919-14-6)
- 6-Bromo-3-(1,2,3,6-tetrahydropyridin-4-yl)-1H-indole (CAS 1247577-87-2)
- 2,3-Difluoro-6-(trifluoromethoxy)phenol (CAS 2386799-38-6)
- 2-Formyl-4-methoxybenzoic acid (CAS 60373-42-4)
- Ethyl 7-(4-chlorophenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 741710-05-4)
- Des-Leu26-Tirzepatide (CAS CATO-CPTD788947)
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