3-(2-Chlorophenyl)-1H-pyrrole-2,5-dione CAS 21724-91-4
| CAS No. | 21724-91-4 |
| Molecular Formula | C10H6ClNO2 |
| Molecular Weight | 207.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies 3-(2-Chlorophenyl)-1H-pyrrole-2,5-dione (CAS 21724-91-4), a certified reference material (molecular formula C10H6ClNO2, MW 207.61 g/mol) for analytical method development and quality control.
Based on its molecular formula C10H6ClNO2, 3-(2-Chlorophenyl)-1H-pyrrole-2,5-dione contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 207.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 3-(2-Chlorophenyl)-1H-pyrrole-2,5-dione meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H6ClNO2 |
| Molecular Weight | 207.61 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-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.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chlorophenyl Standards
- 1-(2-Chlorophenyl)-2,5-dihydro-1H-pyrrole-2,5-dione (CAS 1203-24-3)
- 1-(3-Chlorophenyl)-2,5-dihydro-1H-pyrrole-2,5-dione (CAS 1204-35-9)
- 3-(4-Chlorophenyl)isoxazole-5-carbaldehyde (CAS 121769-18-4)
- 1-(4-Chlorophenyl)-2,5-dihydro-1H-pyrrole-2,5-dione (CAS 1631-29-4)
- (3-Chlorophenyl)(oxazol-2-yl)methanone (CAS 898759-75-6)
- (4-Chlorophenyl)(oxazol-2-yl)methanone (CAS 898759-77-8)
- 2-(2-Chlorophenyl)oxazole-4-carbaldehyde (CAS 885274-43-1)
- 2-(3-Chlorophenyl)oxazole-4-carbaldehyde (CAS 885273-15-4)
Recommended Standards
- 2-Hydroxyquinoline-4-carbonyl chloride (CAS 57659-08-2)
- 3-(2-Chlorophenyl)isoxazole-5-carbaldehyde (CAS 337355-80-3)
- 2-Chloroquinoline-4-carboxylic Acid (CAS 5467-57-2)
- 3-(3-Chloro-phenyl)-isoxazole-5-carbaldehyde (CAS 869496-60-6)
- N-(4-(Pyridin-3-yl)thiazol-2-yl)-[1,3]dioxolo[4',5':4,5]benzo[1,2-d]thiazol-6-amine (CAS 862976-66-7)
- 4-(2-Fluoroethoxy)piperidine hydrochloride (CAS 1220033-03-3)
- 2-{[5-chloro-1-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridazin-4-yl](methyl)amino}ethyl cyclopropanecarboxylate (CAS 477867-34-8)
- 4-((Sec-butylamino)methyl)-N,N-diethylaniline (CAS 893590-44-8)
- 2-(Ethylsulfonyl)-1-(4-nitrophenyl)ethanone (CAS 139268-92-1)
- N-(2,2-dimethylpropyl)-N-methylcarbamoyl chloride (CAS 1543028-41-6)
- 3'-(4-Chlorophenyl)-1-[(3,4-dichlorophenyl)methyl]-1,2-dihydrospiro[indole-3,2'-[1,3]thiazolidine]-2,4'-dione (CAS 477859-00-0)
- 3-(2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]sulfanyl}phenyl)-1-cyclohexylurea (CAS 338407-29-7)
- 3-Amino-1H-pyrrole-2-carboxylic acid (CAS 885951-53-1)
- Peptide 440 (CAS CATO-CPTD788440)
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