4-Nitro-1-naphthaldehyde CAS 42758-54-3
| CAS No. | 42758-54-3 |
| Molecular Formula | C11H7NO3 |
| Molecular Weight | 201.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 201.18 g/mol gives 4-Nitro-1-naphthaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Nitro-1-naphthaldehyde (CAS 42758-54-3), molecular formula C11H7NO3 and molecular weight 201.18 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Nitro-1-naphthaldehyde (C11H7NO3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 4-Nitro-1-naphthaldehyde 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 | C11H7NO3 |
| Molecular Weight | 201.18 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Nitrogen Atoms | 1 |
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- 6-Amino-4-hydroxyquinoline-2-carboxylic acid (CAS 708258-08-6)
- 2,3,6-Triphenylpyrimidine-4(3H)-thione (CAS 89070-06-4)
- 1,5-Dimethyl-2-(methylthio)-1H-benzo[d]imidazole (CAS 419540-44-6)
- 1-(3,4-Dimethylphenyl)-1H-pyrrole-2,5-dione (CAS 64059-57-0)
- N-(4'-Formyl[1,1'-biphenyl]-4-yl)acetamide (CAS 400744-95-8)
- Liraglutide (13-21) TFA Salt (CAS CATO-C4X-19928)
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