(3R,4S)-4-(2-chloro-4-methoxyphenyl)-2-oxopyrrolidine-3-carboxylic acid CAS 1784747-76-7
| CAS No. | 1784747-76-7 |
| Molecular Formula | C12H12ClNO4 |
| Molecular Weight | 269.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3R,4S)-4-(2-chloro-4-methoxyphenyl)-2-oxopyrrolidine-3-carboxylic acid (C12H12ClNO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
(3R,4S)-4-(2-chloro-4-methoxyphenyl)-2-oxopyrrolidine-3-carboxylic acid (CAS 1784747-76-7), molecular formula C12H12ClNO4 and molecular weight 269.68 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H12ClNO4 |
| Molecular Weight | 269.68 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- Methyl 3-[(3S)-6-chloro-2-oxo-1H,2H,3H,4H-pyrido[2,3-b]pyrazin-3-yl]propanoate (CAS 1638603-92-5)
- 1-(2-Chloro-5-nitrobenzoyl)piperazine (CAS 784135-98-4)
- Ethyl 4-(chlorosulfonyl)-3-fluoro-1-methyl-1H-pyrrole-2-carboxylate (CAS 1638268-96-8)
- 1-(3-Chloro-4-methoxyphenyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 63674-98-6)
- 1-(2-Bromo-1-butoxyethyl)-2-fluorobenzene (CAS 1248082-26-9)
- Pyrazolo[1,5-c]pyrimidin-7-ylamine (CAS 1369346-27-9)
- 2-Phenylcyclohexanone (CAS 1444-65-1)
- 7-Bromo-8-(chloromethyl)-2-methylimidazo[1,2-a]pyridine (CAS 2443448-72-2)
- 4-(Aminomethyl)-6-methylpyridin-2-ol (CAS 1393547-88-0)
- Moxifloxacin Impurity 155 (CAS CATO-C4X-1074155)
- N-Methyl-1-(2-methylbenzoyl)indoline-5-sulfonamide (CAS 1252472-60-8)
- 4-Methoxythiophen-3-amine hydrochloride (CAS 1416714-13-0)
- 4',6'-Bis(4-aminophenyl)-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde (CAS 2583822-09-5)
- Anxiety Peptide (CAS 95237-86-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com