1-Butyl-3-chloro-4-phenyl-1H-pyrrole-2,5-dione CAS 828938-45-0
| CAS No. | 828938-45-0 |
| Molecular Formula | C14H14ClNO2 |
| Molecular Weight | 263.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-Butyl-3-chloro-4-phenyl-1H-pyrrole-2,5-dione (C14H14ClNO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 263.72 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
1-Butyl-3-chloro-4-phenyl-1H-pyrrole-2,5-dione (CAS 828938-45-0) is a high-purity analytical reference standard with the molecular formula C14H14ClNO2 and a molecular weight of 263.72 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 1-Butyl-3-chloro-4-phenyl-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.
Physical & Chemical Properties
| Molecular Formula | C14H14ClNO2 |
| Molecular Weight | 263.72 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 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; 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.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 1-(5-Chloro-2-methoxyphenyl)-2,5-dimethyl-1h-pyrrole-3-carbaldehyde (CAS 426221-04-7)
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- 1-(3-Chloroquinoxalin-2-yl)piperidin-4-ol (CAS 353257-77-9)
- 1-tert-butyl 2-methyl (2S,4R)-4-chloropyrrolidine-1,2-dicarboxylate (CAS 317356-97-1)
- 1-((1-Phenyl-1H-tetrazol-5-yl)methyl)-3-(p-tolyl)urea (CAS 1005293-36-6)
- 2,5-dimethyloxolane-3-carboxylic acid (CAS 1858691-18-5)
- [1,2,4]triazolo[4,3-a]pyridine-5-carboxylic acid (CAS 1234615-95-2)
- 3-Chloro-4-(trifluoromethoxy)phenylacetonitrile (CAS 78240-45-6)
- Octahydrocyclopenta[c]pyrrole-1-carboxylic Acid Hydrochloride (CAS 1219204-23-5)
- (2R,4R)-Teneligliptin TFA (CAS 1404559-17-6 (free base))
- 2-((4-(Tert-butyl)benzyl)thio)-4H-pyrido[1,2-a][1,3,5]triazin-4-one (CAS 303145-16-6)
- (5-Amino-2-chloro-pyridin-4-yl)-carbamic acid tert-butyl ester (CAS 240815-75-2)
- 3-(4-Piperidyl)isoxazole-5-carboxylic Acid (CAS 1523500-41-5)
- Semaglutide impurity 58 (CAS CATO-C4X-222658)
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