5-Oxo-2-pyrrolidinecarbonyl chloride CAS 55478-53-0
| CAS No. | 55478-53-0 |
| Molecular Formula | C5H6ClNO2 |
| Molecular Weight | 147.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Oxo-2-pyrrolidinecarbonyl chloride is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Oxo-2-pyrrolidinecarbonyl chloride (CAS 55478-53-0) is a high-purity analytical reference standard with the molecular formula C5H6ClNO2 and a molecular weight of 147.56 g/mol.
The molecular framework of 5-Oxo-2-pyrrolidinecarbonyl chloride (C5H6ClNO2) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Oxo-2-pyrrolidinecarbonyl chloride under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H6ClNO2 |
| Molecular Weight | 147.56 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Oxo Standards
Recommended Standards
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- 2-(4-Methylphenyl)-4-(pyridin-4-yl)pyrimidine-5-carbohydrazide dihydrochloride (CAS 1046801-89-1)
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