trans-Crotononitrile(contains ca. 20% cis- isomer) CAS 627-26-9

Purity 97%+In StockPharmaceutical Standards
CAS No.627-26-9
Molecular FormulaC4H5N
Molecular Weight67.09 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

trans-Crotononitrile(contains ca. 20% cis- isomer) CAS 627-26-9 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.

trans-Crotononitrile(contains ca. 20% cis- isomer) (CAS 627-26-9), molecular formula C4H5N and molecular weight 67.09 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrile group, trans-Crotononitrile(contains ca. 20% cis- isomer) is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 67.09 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

As a certified reference material (CRM), trans-Crotononitrile(contains ca. 20% cis- isomer) 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 FormulaC4H5N
Molecular Weight67.09 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1957
Nitrogen Atoms1

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