4,5-Dihydro-1H-pyrrole-2-carboxylic acid CAS 872264-15-8
| CAS No. | 872264-15-8 |
| Molecular Formula | C5H7NO2 |
| Molecular Weight | 113.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4,5-Dihydro-1H-pyrrole-2-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.
4,5-Dihydro-1H-pyrrole-2-carboxylic acid (CAS 872264-15-8) is a high-purity analytical reference standard with the molecular formula C5H7NO2 and a molecular weight of 113.11 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 4,5-Dihydro-1H-pyrrole-2-carboxylic acid is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 113.11 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 | C5H7NO2 |
| Molecular Weight | 113.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Dihydro Standards
- (R)-2,5-Dihydro-1H-pyrrole-2-carboxylic Acid (CAS 58640-72-5)
- (S)-3,4-Dihydro-2H-pyrrole-2-carboxylic acid (CAS 64199-88-8)
- 2,3-Dihydro-[1,4]oxazine-4-carbaldehyde, 98% (CAS 61157-72-0)
- 2,5-Dihydro-1H-pyrrole-3-carboxylic acid (CAS 72519-12-1)
- (5,6-Dihydro-2h-pyran-3-yl)methanamine (CAS 1082041-24-4)
- (2R)-3,4-dihydro-2H-pyran-2-ylmethanamine (CAS 144069-81-8)
- (3,6-dihydro-2H-pyran-4-yl)methanamine (CAS 1626424-13-2)
- 6,7-dihydro-5H-pyrrolo[1,2-b][1,2,4]triazole (CAS 1956327-30-2)
Recommended Standards
- 4-(Methylamino)furan-2(5H)-one (CAS 30290-18-7)
- 4,5-Dimethyl-2,3-dihydro-1,3-oxazol-2-one (CAS 59167-68-9)
- 3-Vinyloxazolidin-2-one (CAS 4271-26-5)
- 4-Hydroxy-5,6-dihydropyridin-2(1H)-one (CAS 500102-31-8)
- Chloroethane-1,1,2,2-d4 (gas) (CAS 25854-33-5)
- 1-(4-Chloro-3-nitrophenyl)-2,2,2-trifluoroethan-1-ol (CAS 1554108-97-2)
- tert-butyl (2S)-2-(2-hydroxyethyl)piperazine-1-carboxylate hydrochloride (CAS 1638487-43-0)
- 2-Methyl-2-(4-((phenylthio)methyl)phenyl)propanenitrile (CAS 1185311-16-3)
- 3-Iododibenzofuran (CAS 5896-29-7)
- 4-[(2-Bromoacetyl)amino]-N-ethyl-N-phenylbenzamide (CAS 1138443-02-3)
- Hexyl Methanethiosulfonate (CAS 53603-16-0)
- 5-Methoxypentanal (CAS 84629-00-5)
- Cyclobutyl(cyclohexyl)methanamine (CAS 1337610-10-2)
- Palmitoyl Hexapeptide-12 TFA salt (CAS 171263-26-6(Free Base))
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