(2E)-Pent-2-enoyl chloride CAS 33698-85-0

Purity 97%+In StockPharmaceutical Standards
CAS No.33698-85-0
Molecular FormulaC5H7ClO
Molecular Weight118.56 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2E)-Pent-2-enoyl chloride CAS 33698-85-0 chemical structure

Description

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.

(2E)-Pent-2-enoyl chloride (CAS 33698-85-0), molecular formula C5H7ClO and molecular weight 118.56 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C5H7ClO, (2E)-Pent-2-enoyl chloride contains a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 118.56 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

As a certified reference material (CRM), (2E)-Pent-2-enoyl chloride 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 FormulaC5H7ClO
Molecular Weight118.56 g/mol
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1966
Halogen ContentCl-containing

Related E Standards

Recommended Standards

Why CATO?