4,4'-((3-Nitrophenyl)methylene)bis(2-chloroaniline) CAS 40530-26-5
| CAS No. | 40530-26-5 |
| Molecular Formula | C19H15Cl2N3O2 |
| Molecular Weight | 388.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4,4'-((3-Nitrophenyl)methylene)bis(2-chloroaniline) (CAS 40530-26-5), molecular formula C19H15Cl2N3O2 and molecular weight 388.25 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C19H15Cl2N3O2, 4,4'-((3-Nitrophenyl)methylene)bis(2-chloroaniline) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 388.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C19H15Cl2N3O2 |
| Molecular Weight | 388.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 2-Chloro-N-(2-(3-(4-chlorophenyl)-6-oxopyridazin-1(6H)-yl)ethyl)benzamide (CAS 921531-81-9)
- N-(4-Chlorophenyl)-3-((4-chlorophenyl)amino)-2-(3-methylisoxazol-5-yl)acrylamide (CAS 917837-54-8)
- 1-(1-(2,6-Dichlorobenzyl)-6-oxo-1,6-dihydropyridin-3-yl)-3-phenylurea (CAS 338784-63-7)
- N-{(Z)-[2-(2,4-Dichlorophenoxy)phenyl]methylidene}-1-methyl-1H-pyrrole-2-carbohydrazide (CAS 866019-92-3)
- 3-(2-Chlorophenyl)-3-(3-(methoxymethoxy)phenyl)propanoic acid (CAS 1142210-90-9)
- piperazin-2-one hydrochloride (CAS 24123-06-6)
- (2-Nitrophenyl)(3-nitrophenyl)methanone (CAS 60191-42-6)
- Methyl 2-amino-5-fluoro-4-(trifluoromethyl)benzoate (CAS 1807165-96-3)
- Ezetimibe Impurity 99 (CAS CATO-C4X-109899)
- 2-Methyl-5-phenylpyrimidin-4(3h)-imine (CAS 102249-48-9)
- 2-(3,6-Dichloropyridazin-4-yl)cyclohexanol (CAS 108288-12-6)
- (6R)-Benzyl 7-oxa-3-azabicyclo[4.1.0]heptane-3-carboxylate (CAS 1624258-63-4)
- 2-(4-Methoxyphenyl)quinoline-8-carboxamide (CAS 655222-47-2)
- Liraglutide Impurity 25 (CAS CATO-C4X-199225)
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