4-(Pyrrolidin-2-yl)benzoic acid CAS 937685-45-5
| CAS No. | 937685-45-5 |
| Molecular Formula | C11H13NO2 |
| Molecular Weight | 191.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(Pyrrolidin-2-yl)benzoic acid (CAS 937685-45-5), molecular formula C11H13NO2 and molecular weight 191.23 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 4-(Pyrrolidin-2-yl)benzoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 191.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-(Pyrrolidin-2-yl)benzoic 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.
Physical & Chemical Properties
| Molecular Formula | C11H13NO2 |
| Molecular Weight | 191.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Pyrrolidin Standards
- 3-(Pyrrolidin-2-yl)benzoic acid (CAS 1187932-57-5)
- (S)-3-(pyrrolidin-2-yl)benzoic acid (CAS 1213410-24-2)
- 4-[(2s)-pyrrolidin-2-yl]benzoicacid (CAS 1213448-39-5)
- (R)-4-(Pyrrolidin-2-yl)benzoic acid (CAS 1213517-69-1)
- (R)-3-(pyrrolidin-2-yl)benzoic acid (CAS 1213698-21-5)
- 2-(Pyrrolidin-1-yl)isonicotinamide (CAS 1378457-21-6)
- 2-(Pyrrolidin-1-yl)nicotinamide (CAS 784083-31-4)
- (6-methyl-2-pyrrolidin-1-ylpyridin-3-yl)methylamine (CAS 1209616-87-4)
Recommended Standards
- 4-(Hydroxymethyl)-1-phenylpyrrolidin-2-one (CAS 64320-90-7)
- 4,4-Dimethyl-2-phenylisoxazolidin-3-one (CAS 81777-90-4)
- 4-(Dimethylamino)cinnamic Acid (CAS 5676-65-3)
- 4,4-Dimethyl-5-phenyl-4,5-dihydroisoxazol-5-ol (CAS 53009-30-6)
- 4-(4-Ethylphenyl)-3-(methylsulfonyl)-1H-pyrazole (CAS 1708380-20-4)
- Methyl 4-bromo-1-(cyclobutylmethyl)-1H-pyrazole-3-carboxylate (CAS 1707398-78-4)
- 2,2-Difluoro-3-hydroxy-3,5-dimethylhexanoic acid (CAS 1248448-97-6)
- 6,9-Dimethyl-1H,2H,3H,4H,5H,10H-benzo[b]1,6-naphthyridin-10-one (CAS 1338675-56-1)
- Vinpocetine Impurity 30 (CAS CATO-C4X-184330)
- 2-[2-(2,6-dioxo-3-piperidyl)-1,3-dioxo-isoindolin-4-yl]oxypropanoic acid (CAS 2412988-22-6)
- 4-Chloro-6-methoxy-2-methyl-1,5-naphthyridine (CAS 81935-22-0)
- 5-Amino-2-Methylphenylboronic Acid Pinacol Ester (CAS 882670-69-1)
- 4-Fluoro-2-methyl-3-nitroanisole (CAS 122455-87-2)
- (Pro3)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 299898-52-5)
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