1-(2-Chloropyridin-3-yl)-1H-pyrrole-2,5-dione CAS 278610-39-2
| CAS No. | 278610-39-2 |
| Molecular Formula | C9H5ClN2O2 |
| Molecular Weight | 208.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-(2-Chloropyridin-3-yl)-1H-pyrrole-2,5-dione.
1-(2-Chloropyridin-3-yl)-1H-pyrrole-2,5-dione (CAS 278610-39-2), molecular formula C9H5ClN2O2 and molecular weight 208.60 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H5ClN2O2, 1-(2-Chloropyridin-3-yl)-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 208.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1-(2-Chloropyridin-3-yl)-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 | C9H5ClN2O2 |
| Molecular Weight | 208.60 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 sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloropyridin Standards
- 5-(2-Chloropyridin-3-yl)-5-oxopentanenitrile (CAS 890100-76-2)
- (2S)-2-(6-Chloropyridin-3-yl)-7-azabicyclo[2.2.1]heptane dihydrochloride (CAS 152378-30-8)
- (2Z)-2-(6-Chloropyridin-3-yl)-3-(dimethylamino)prop-2-enenitrile (CAS 1092346-79-6)
- 1-(2-Chloropyridin-3-yl)-2,2,2-trifluoroethanone (CAS 1057657-62-1)
- 1-(3-Chloropyridin-2-yl)-2,2,2-trifluoroethan-1-one (CAS 1060802-07-4)
- 1-(5-Chloropyridin-2-yl)-2,2,2-trifluoroethan-1-one (CAS 1060802-09-6)
- 1-(5-Chloropyridin-3-yl)-2,2,2-trifluoroethan-1-one (CAS 1060802-11-0)
- 1-(3-Chloropyridin-4-yl)-2,2,2-trifluoroethan-1-one (CAS 1060802-13-2)
Recommended Standards
- 7-Amino-6-chloroisoquinoline-5,8-dione (CAS 192630-52-7)
- 1-Chloro-4-nitroisoquinoline (CAS 65092-53-7)
- 2-Chloro-8-hydroxynaphthalene-1,4-dione (CAS 18855-92-0)
- 1-Chloro-5-nitroisoquinoline (CAS 58142-97-5)
- 2-amino-1-(4-ethoxyphenyl)ethanol (CAS 145412-87-9)
- 5-Formylpicolinic acid (CAS 53574-58-6)
- 3-Amino-1-(difluoromethyl)cyclobutan-1-ol hydrochloride (CAS 2306278-07-7)
- 4-Methylpiperidine-4-carbonitrile (CAS 948988-53-2)
- Tenofovir alafenamide Impurity 52 (CAS 383365-04-6)
- Solifenacin EP Impurity A D-(-)-tartrate (CAS 869884-00-4)
- 2-{[2,6-bis(propan-2-yl)phenyl]amino}ethan-1-ol (CAS 790206-40-5)
- 2-Chloro-N-(3-cyanophenyl)propanamide (CAS 565179-44-4)
- 2-Propenoic acid, 2-methyl-, polymer with N-(1,1-dimethyl-3-oxobutyl)-2-propenamide (CAS 77431-37-9)
- Semaglutide impurity 290 (CAS CATO-C4X-2226290)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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