1-(2,4,5-Trichlorophenyl)-2,5-dihydro-1H-pyrrole-2,5-dione CAS 31489-22-2
| CAS No. | 31489-22-2 |
| Molecular Formula | C10H4Cl3NO2 |
| Molecular Weight | 276.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-(2,4,5-Trichlorophenyl)-2,5-dihydro-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.
1-(2,4,5-Trichlorophenyl)-2,5-dihydro-1H-pyrrole-2,5-dione (CAS 31489-22-2), molecular formula C10H4Cl3NO2 and molecular weight 276.50 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 1-(2,4,5-Trichlorophenyl)-2,5-dihydro-1H-pyrrole-2,5-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 276.50 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C10H4Cl3NO2 |
| Molecular Weight | 276.50 g/mol |
| Appearance | Pale yellow to 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 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.) | 1965 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Trichlorophenyl Standards
- 1-(2,4,6-Trichlorophenyl)-1H-pyrrole-2,5-dione (CAS 13167-25-4)
- 3-Methyl-1-(2,4,6-trichlorophenyl)-1H-pyrazol-5-amine (CAS 106259-87-4)
- 5-(2,4,5-Trichlorophenyl)furan-2-carbaldehyde (CAS 68502-15-8)
- 5-Methyl-1-(2,4,5-trichlorophenyl)-1H-pyrazol-3(2H)-one (CAS 14575-29-2)
- 3-Methyl-1-(2,4,6-trichlorophenyl)-1H-pyrazol-5(4H)-one (CAS 14657-25-1)
- (5-(2,4,5-Trichlorophenyl)furan-2-yl)methanol (CAS 773870-51-2)
- 5-(2,4,6-Trichlorophenyl)pyrimidin-2-amine (CAS 1111102-01-2)
- 5-(3,4,5-Trichlorophenyl)pyrimidin-2-amine (CAS 1111106-80-9)
Recommended Standards
- 4,6,7-Trichloro-1-methyl-3-oxo-1,3-dihydroisobenzofuran-5-carbonitrile (CAS 194923-81-4)
- 2-(4-Chlorophenyl)-4-(dichloromethylene)oxazol-5(4H)-one (CAS 61767-33-7)
- 4,6,8-Trichloroquinoline-3-carboxylic acid (CAS 1820687-03-3)
- 3,4-Dichloro-1-(4-chlorophenyl)-1H-pyrrole-2,5-dione (CAS 29236-09-7)
- 3,5,4'-Trihydroxystilbene (CAS 133294-37-8)
- 3-(Trifluoromethyl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-amine (CAS 24848-34-8)
- (2-methoxy-3-methylphenyl)methanamine (CAS 623570-52-5)
- 3-Isopropyl-5-(methylthio)benzaldehyde (CAS 1289031-77-1)
- N-Methyl-1-(3-(trifluoromethyl)pyridin-2-yl)methanamine hydrochloride (CAS 1951441-74-9)
- 2-Methoxy-1-methyl-1H-purine (CAS 61078-15-7)
- 4-Chloro-7-fluoro-2,3-dihydro-1H-inden-1-amine (CAS 1337690-24-0)
- 5,5-Dibromo-2,2-dimethyl-1,3-dioxane-4,6-dione (CAS 66131-14-4)
- 6-(thiophen-2-yl)-1H-indole (CAS 243972-30-7)
- Insulin Degludec Impurity 10 (CAS CATO-C4X-215710)
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