3-Chloro-5-methoxy-4-[(3-nitrobenzyl)oxy]benzaldehyde CAS 428502-97-0
| CAS No. | 428502-97-0 |
| Molecular Formula | C15H12ClNO5 |
| Molecular Weight | 321.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Chloro-5-methoxy-4-[(3-nitrobenzyl)oxy]benzaldehyde is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Chloro-5-methoxy-4-[(3-nitrobenzyl)oxy]benzaldehyde (CAS 428502-97-0), molecular formula C15H12ClNO5 and molecular weight 321.71 g/mol, is a CATO reference standard with documented purity and traceability.
3-Chloro-5-methoxy-4-[(3-nitrobenzyl)oxy]benzaldehyde (C15H12ClNO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C15H12ClNO5 |
| Molecular Weight | 321.71 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- Methyl 3-(2-chloro-5-methoxyphenyl)-5-nitrobenzoate (CAS 1820705-15-4)
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- 2-Chloro-5-nitrobenzyl 4-methoxybenzoate (CAS 331460-06-1)
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Recommended Standards
- 7-(Difluoromethyl)-5-(p-tolyl)pyrazolo[1,5-a]pyrimidine-3-carbonyl chloride (CAS 862657-67-8)
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- (4-Chlorophenyl)(4,5-dimethoxy-2-nitrophenyl)methanone (CAS 681469-99-8)
- 5-Bromo-2-chlorophenoxy(tert-butyl)dimethylsilane (CAS 1881291-40-2)
- Ethyl 3-isobutyl-1H-1,2,4-triazole-5-carboxylate (CAS 1416340-92-5)
- 4-(6-Bromo-pyridin-2-yl)-2-methyl-benzoic acid (CAS 1020718-62-0)
- 3-Ethyl-4-oxo-3,4-dihydrophthalazine-1-carbohydrazide (CAS 565192-00-9)
- (Dimethylphenylphosphine)(1,5-cyclooctadiene)[1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene]iridium(I) hexafluorophosphate, min. 98% (CAS 1019853-03-2)
- 4-(Methoxymethyl)cyclohexan-1-amine (CAS 1314928-41-0)
- (4-(cyclopropylmethyl)morpholin-2-yl)methanamine dihydrochloride (CAS 141815-15-8)
- 1-tert-butyl 2-methyl 2-(3-methylbut-2-enyl)azetidine-1,2-dicarboxylate (CAS 1148044-26-1)
- 2-(3,5-Difluorophenyl)piperidine (CAS 1203799-01-2)
- 3-(2,4-Difluorophenyl)-3H-[1,2,3]triazolo[4,5-b]pyridine (CAS 62051-90-5)
- C-telopeptide (CAS 162929-64-8)
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