Ethyl 3,4-dichloro-5-methyl-1H-pyrrole-2-carboxylate CAS 24691-21-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 24691-21-2 |
| Molecular Formula | C8H9Cl2NO2 |
| Molecular Weight | 222.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ethyl 3,4-dichloro-5-methyl-1H-pyrrole-2-carboxylate (CAS 24691-21-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C8H9Cl2NO2. Molecular weight: 222.07 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C8H9Cl2NO2 |
| Molecular Weight | 222.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
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- 3,5-Dichloro-1-(tetrahydro-2H-pyran-2-yl)-1H-1,2,4-triazole (CAS 1088834-41-6)
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Recommended Standards
- 7-Iodohept-1-yne (CAS 87462-66-6)
- 1H-Indole-2, 5,7-dichloro- 5,3-dione 5,7-Dichloroisatin 6374-92-1 Indole-2, 5,7-dichloro- Isatin,7-dichloro- MLS002639083 NSC-26045 NSC26045 (CAS 6374-92-1)
- 4-Iodohepta-1,6-diene (CAS 921926-33-2)
- 2-{[(2H-1,3-benzodioxol-5-yl)methyl]amino}-4-(4-chlorophenyl)-4-oxobutanoic acid (CAS 1031274-88-0)
- tert-Butyl 5-methoxyspiro[1,2-dihydroindene-3,4'-piperidine]-1'-carboxylate (CAS 1160247-35-7)
- Bosentan USP Related Compound A (CAS 150727-06-3)
- Isoquinolin-5-amine dihydrochloride (CAS 58143-00-3)
- 2-(6-Chloropyridin-2-yl)ethan-1-amine (CAS 933734-79-3)
- Ceftaroline Impurity 4 (CAS CATO-C4X-14834)
- Semaglutide Impurity 176 (CAS CATO-C4X-2226176)
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 13829788188 / jacky.chen@cato-chem.com