5-(4-Chlorophenyl)-3-(1,3-dioxo-2,3-dihydro-1H-inden-2-ylidene)-4,6-dioxo-octahydropyrrolo[3,4-c]pyrrole-1-carboxylic acid CAS 321392-14-7
| CAS No. | 321392-14-7 |
| Molecular Formula | C22H13ClN2O6 |
| Molecular Weight | 436.80 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-(4-Chlorophenyl)-3-(1,3-dioxo-2,3-dihydro-1H-inden-2-ylidene)-4,6-dioxo-octahydropyrrolo[3,4-c]pyrrole-1-carboxylic acid 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.
CATO supplies 5-(4-Chlorophenyl)-3-(1,3-dioxo-2,3-dihydro-1H-inden-2-ylidene)-4,6-dioxo-octahydropyrrolo[3,4-c]pyrrole-1-carboxylic acid (CAS 321392-14-7), a certified reference material (molecular formula C22H13ClN2O6, MW 436.80 g/mol) for analytical method development and quality control.
Structurally, 5-(4-Chlorophenyl)-3-(1,3-dioxo-2,3-dihydro-1H-inden-2-ylidene)-4,6-dioxo-octahydropyrrolo[3,4-c]pyrrole-1-carboxylic acid (C22H13ClN2O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 17.0, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 436.80 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C22H13ClN2O6 |
| Molecular Weight | 436.80 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- Ensitrelvir Impurity 7 (CAS CATO-C4X-25197)
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- tert-Butyl 4-(5-chloro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)piperazine-1-carboxylate (CAS 2096341-22-7)
- Triacontanal (CAS 22725-63-9)
- 1-(2-Phenylpyrimidin-4-yl)propan-1-one (CAS 89967-16-8)
- 2-((3-Cyano-6-phenyl-4-(p-tolyl)pyridin-2-yl)thio)-N-(3-nitrophenyl)propanamide (CAS 332128-03-7)
- Ethyl 3-styryl-1H-pyrazole-5-carboxylate (CAS 40753-30-8)
- 5-Phenylbenzo[d]thiazol-2-amine (CAS 1208394-99-3)
- Ethyl 5-sulfamoyl-2,3-dihydrobenzofuran-2-carboxylate (CAS 1490443-66-7)
- 1-(Tetrahydro-2H-pyran-2-yl)propan-2-ol (CAS 3578-82-3)
- (R)-Terazosin (CAS 109351-34-0)
- (3R)-3-Methanesulfonylpiperidine (CAS 1234576-83-0)
- N-(4-Acetylaminophenyl)-N,N-dimethylacetamidine (CAS 1358054-66-6)
- Semaglutide Impurity 9 (CAS CATO-C4X-22269)
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