3-ACETOXY-4-NITROBENZOIC ACID CAS 51257-24-0
| CAS No. | 51257-24-0 |
| Molecular Formula | C9H7NO6 |
| Molecular Weight | 225.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
3-ACETOXY-4-NITROBENZOIC ACID (CAS 51257-24-0), molecular formula C9H7NO6 and molecular weight 225.15 g/mol, is a CATO reference standard with documented purity and traceability.
3-ACETOXY-4-NITROBENZOIC ACID (C9H7NO6) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
As a certified reference material (CRM), 3-ACETOXY-4-NITROBENZOIC ACID 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 | C9H7NO6 |
| Molecular Weight | 225.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 1 |
Related ACETOXY Standards
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- 3-(2-Acetoxy-5-fluorophenyl)propanoic acid (CAS 100754-78-7)
- 4-Acetoxy-2-amino-5-methoxybenzoic acid (CAS 887587-22-6)
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Recommended Standards
- 3-(Methoxycarbonyl)-4-nitrobenzoic Acid (CAS 64152-09-6)
- 4-(Carboxymethyl)-3-nitrobenzoic Acid (CAS 444667-11-2)
- 3-(Carboxymethyl)-4-nitrobenzoic acid (CAS 884494-72-8)
- 4-(Methoxycarbonyl)-2-nitrobenzoic acid (CAS 55737-66-1)
- 2-Hydroxy-3-methoxy-5-nitrobenzoic acid (CAS 20718-78-9)
- 1-[(2,2-Dimethyl-1,3-dioxolan-4-yl)methoxy]-3-[4-(2-methoxyethyl)phenoxy]-2-propanol (CAS 163685-40-3)
- Sucrose dodecanoate (CAS 37266-93-6)
- 1-(3-chloro-4-methoxyphenyl)-5-ethyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 1267764-41-9)
- tert-Butyl 10,10-difluoro-1-oxo-2,7-diazaspiro[4.5]decane-7-carboxylate (CAS 1228630-96-3)
- 2,2-Difluoro-6-azabicyclo[3.2.2]nonane-5-carboxylic acid hydrochloride (CAS 1394042-78-4)
- 132766-78-0 [5-(Pyridin-4-yl)-2H-tetrazol-2-yl]acetic acid MFCD05245485 (CAS 132766-78-0)
- 3-((Dibutylamino)methyl)benzenethiol (CAS 1443303-81-8)
- NLG919 (CAS 1402836-58-1)
- Tyr-Proinsulin C-Peptide (55-89) (human) (CAS 139532-11-9)
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