1H-Pyrrole-2,3-dicarboxylic acid hydrate CAS 1329802-41-6
| CAS No. | 1329802-41-6 |
| Molecular Formula | C6H5NO4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1H-Pyrrole-2,3-dicarboxylic acid hydrate is closely related to a carbohydrate-derived structure, an amide group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1H-Pyrrole-2,3-dicarboxylic acid hydrate (CAS 1329802-41-6), molecular formula C6H5NO4H2O and molecular weight 173.12 g/mol, is a CATO reference standard with documented purity and traceability.
1H-Pyrrole-2,3-dicarboxylic acid hydrate (C6H5NO4H2O) contains a carbohydrate-derived structure, an amide group. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
As a certified reference material (CRM), 1H-Pyrrole-2,3-dicarboxylic acid hydrate 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 | C6H5NO4 H2O |
| Molecular Weight | 173.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |
Related H Standards
- Pyrrole-ND (CAS 10162-82-0)
- 1H-Pyrrole-2,5-dione, 1,1'-(methylenedi-4,1-phenylene)bis-, polymer with 2,4-bis[(4-aminophenyl)methyl]benzenamine and 4,4'-methylenebis[benzenamine] (CAS 102900-05-0)
- 1-(1H-Pyrrole-2-carbonyl)piperidine-4-carboxylic acid (CAS 1038214-60-6)
- 1-(1H-Pyrrole-2-carbonyl)piperidine-3-carboxylic acid (CAS 1042602-88-9)
- 1H-Pyrrole-2-carboximidamide (CAS 105533-75-3)
- Pyrrole (CAS 109-97-7)
- 1H-Pyrrole-3-propanoic-β-13C acid, 5-formyl-2,4-dimethyl-, methyl ester (CAS 110995-29-4)
- 1H-pyrrole-2,3-dicarboxylic acid (CAS 1125-32-2)
Recommended Standards
- 1-(2-Fluoroethyl)-3-methyl-1H-pyrazole-4-carboxylic acid (CAS 1427012-08-5)
- 6-Methyl-1,2,3,4-tetrahydroquinolin-8-amine (CAS 160431-50-5)
- 2-(2-Fluorophenyl)acetamide (CAS 326-63-6)
- 2-Cyclopropyl-1H-benzo[d]imidazole-5-carboxylic acid (CAS 1082847-74-2)
- Octadecyl dodecanoate (CAS 3234-84-2)
- (R)-2-Ethynylpiperidine (CAS 128959-93-3)
- N-(m-tolyl)-2-(2-(trifluoromethyl)-1H-benzo[d]imidazol-1-yl)propanamide (CAS 866049-65-2)
- 4-Formylphenyl 3,5-dinitrobenzoate (CAS 311330-89-9)
- (S)-Etodolac Potassium Salt (CAS 170222-32-9)
- D-Thr7-Tirzepatide (CAS CATO-CPTD788924)
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