(1E)-1-[1-(4-Chlorophenyl)-2,5-dimethyl-1H-pyrrol-3-yl]-N-(4-ethylphenyl)methanimine CAS 357664-69-8

Purity 97%+In StockPharmaceutical Standards
CAS No.357664-69-8
Molecular FormulaC21H21ClN2
Molecular Weight336.86 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(1E)-1-[1-(4-Chlorophenyl)-2,5-dimethyl-1H-pyrrol-3-yl]-N-(4-ethylphenyl)methanimine CAS 357664-69-8 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.

(1E)-1-[1-(4-Chlorophenyl)-2,5-dimethyl-1H-pyrrol-3-yl]-N-(4-ethylphenyl)methanimine (CAS 357664-69-8) is a high-purity analytical reference standard with the molecular formula C21H21ClN2 and a molecular weight of 336.86 g/mol.

Structurally, (1E)-1-[1-(4-Chlorophenyl)-2,5-dimethyl-1H-pyrrol-3-yl]-N-(4-ethylphenyl)methanimine (C21H21ClN2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 336.86 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

As a certified reference material (CRM), (1E)-1-[1-(4-Chlorophenyl)-2,5-dimethyl-1H-pyrrol-3-yl]-N-(4-ethylphenyl)methanimine 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 FormulaC21H21ClN2
Molecular Weight336.86 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms2

Related E Standards

Recommended Standards

Why CATO?