4,4'-Methylenebis(2,3-dichloroaniline) CAS 42240-73-3
| CAS No. | 42240-73-3 |
| Molecular Formula | C13H10Cl4N2 |
| Molecular Weight | 336.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4,4'-Methylenebis(2,3-dichloroaniline) (CAS 42240-73-3) is a high-purity analytical reference standard with the molecular formula C13H10Cl4N2 and a molecular weight of 336.04 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 4,4'-Methylenebis(2,3-dichloroaniline) is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 336.04 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures 4,4'-Methylenebis(2,3-dichloroaniline) under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H10Cl4N2 |
| Molecular Weight | 336.04 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 |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Methylenebis Standards
- 4,4'-Methylenebis(2-(trifluoromethyl)aniline) (CAS 15403-97-1)
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- 4,4'-Methylenebis(2-(tert-butyl)-5-methylphenol) (CAS 2872-08-4)
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- 3,3-Methylenebis[5-chlorosaligenin (CAS 40542-32-3)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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