3-chloro-4-[(4-methoxyphenyl)amino]-1-(4-methylphenyl)-1H-pyrrole-2,5-dione CAS 303034-29-9
| CAS No. | 303034-29-9 |
| Molecular Formula | C18H15ClN2O3 |
| Molecular Weight | 342.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3-chloro-4-[(4-methoxyphenyl)amino]-1-(4-methylphenyl)-1H-pyrrole-2,5-dione 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.
CATO supplies 3-chloro-4-[(4-methoxyphenyl)amino]-1-(4-methylphenyl)-1H-pyrrole-2,5-dione (CAS 303034-29-9), a certified reference material (molecular formula C18H15ClN2O3, MW 342.78 g/mol) for analytical method development and quality control.
Structurally, 3-chloro-4-[(4-methoxyphenyl)amino]-1-(4-methylphenyl)-1H-pyrrole-2,5-dione (C18H15ClN2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 342.78 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C18H15ClN2O3 |
| Molecular Weight | 342.78 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 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 2,4-Difluoro-5-nitrobenzamide (CAS 1097799-57-9)
- 3-([1,1'-Biphenyl]-4-yl)-2-(m-tolyl)isoxazolidine-5-carbonitrile (CAS 629643-10-3)
- (S)-2-(3-(pyrrolidin-2-yl)phenyl)acetic acid (CAS 1213476-76-6)
- 5-(3-Azetidinyl)-2-methoxypyridine (CAS 1260833-63-3)
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- 302798-54-5 (Leu31,Pro34)-Neuropeptide Y (13-36) (human, rat) MFCD00672463 (CAS 302798-54-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com