(2R,5S)-5-Ethynylpyrrolidine-2-carboxylic acid CAS 138957-97-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 138957-97-8 |
| Molecular Formula | C7H9NO2 |
| Molecular Weight | 139.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order (2R,5S)-5-Ethynylpyrrolidine-2-carboxylic acid (CAS 138957-97-8) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C7H9NO2. Molecular weight: 139.15 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C7H9NO2 |
| Molecular Weight | 139.15 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 2-ethyl-1H-pyrrole-3-carboxylic acid (CAS 1368126-32-2)
- 1-Methyl-1,4-dihydropyridine-3-carboxylic acid (CAS 140201-08-7)
- 3-(Propan-2-ylidene)pyrrolidine-2,5-dione (CAS 13678-37-0)
- Ecopipam-13C6 (CAS 112108-01-7)
- N-Isobutyl-4-methoxybenzenesulfonamide (CAS 172738-60-2)
- 3-Iodo-1-methyl-1H-pyrazol-5-amine hydrochloride (CAS 2680527-79-9)
- 2-(3-(4-Hydroxyphenyl)-4-(4-methoxyphenyl)isoxazol-5-yl)acetic acid (CAS 112453-43-7)
- 1185101-22-7 4-[3-[4-(2-Chlorophenyl)-9-methyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-2-yl]-1-oxopropyl]morpholine-d8 Apafant-d8 WEB 2086-d8 WEB 2086BS-d8 (CAS 1185101-22-7)
- 2-((Tert-butoxycarbonyl)amino)-3-(2-chlorophenyl)propanoic acid (CAS 1407973-04-9)
- Tirzepatide Impurity 45 (CAS CATO-C4X-324045)
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)
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