3,4-Dichloro-1-(2-ethoxyphenyl)-1H-pyrrole-2,5-dione CAS 138509-79-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 138509-79-2 |
| Molecular Formula | C12H9Cl2NO3 |
| Molecular Weight | 286.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,4-Dichloro-1-(2-ethoxyphenyl)-1H-pyrrole-2,5-dione (CAS 138509-79-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C12H9Cl2NO3. Molecular weight: 286.11 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C12H9Cl2NO3 |
| Molecular Weight | 286.11 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, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- Phenyl(trimethylsilyl)methanone (CAS 5908-41-8)
- Imino(3-iodophenyl)(methyl)-l6-sulfanone (CAS 2100254-07-5)
- 2-Decyl-5,6-dimethoxy-3-methylcyclohexa-2,5-diene-1,4-dione (CAS 55486-00-5)
- Ethyl 2-(2-iodoethoxy)acetate (CAS 56703-25-4)
- Galanin-Like Peptide (rat) trifluoroacetate salt (CAS 245114-97-0)
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