10-(2',4'-Dinitrophenylazo)-9-phenanthrol CAS 54261-71-1
| CAS No. | 54261-71-1 |
| Molecular Formula | C20H12N4O5 |
| Molecular Weight | 388.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
10-(2',4'-Dinitrophenylazo)-9-phenanthrol (CAS 54261-71-1), molecular formula C20H12N4O5 and molecular weight 388.33 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H12N4O5, 10-(2',4'-Dinitrophenylazo)-9-phenanthrol contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 388.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 10-(2',4'-Dinitrophenylazo)-9-phenanthrol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H12N4O5 |
| Molecular Weight | 388.33 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 4 |
Recommended Standards
- (2R,3R,4S,5R)-2-(6-Amino-2-(4-nitrophenyl)-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol (CAS 37151-16-9)
- 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydrobenzo[b]thiepin-8-yl pivalate (CAS 2226905-78-6)
- tert-Butyl 3-(3,4-dichlorophenyl)-3-(3-hydroxypropyl)-1-piperidinecarboxylate (CAS 172734-66-6)
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