(R)-5-(Chloromethyl)pyrrolidin-2-one CAS 138541-53-4

Purity 97%+In StockPharmaceutical Standards
CAS No.138541-53-4
Molecular FormulaC5H8ClNO
Molecular Weight133.58 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(R)-5-(Chloromethyl)pyrrolidin-2-one CAS 138541-53-4 chemical structure

Description

Owing to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, (R)-5-(Chloromethyl)pyrrolidin-2-one is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 133.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

(R)-5-(Chloromethyl)pyrrolidin-2-one (CAS 138541-53-4), molecular formula C5H8ClNO and molecular weight 133.58 g/mol, is a CATO reference standard with documented purity and traceability.

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), (R)-5-(Chloromethyl)pyrrolidin-2-one 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 FormulaC5H8ClNO
Molecular Weight133.58 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1996
Halogen ContentCl-containing
Nitrogen Atoms1

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Why CATO?