(4-Chlorophenyl)(4-(p-tolyl)-1H-pyrrol-3-yl)methanol CAS 338413-71-1

Purity 97%+In StockPharmaceutical Standards
CAS No.338413-71-1
Molecular FormulaC18H16ClNO
Molecular Weight297.78 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(4-Chlorophenyl)(4-(p-tolyl)-1H-pyrrol-3-yl)methanol CAS 338413-71-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 297.78 g/mol gives (4-Chlorophenyl)(4-(p-tolyl)-1H-pyrrol-3-yl)methanol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(4-Chlorophenyl)(4-(p-tolyl)-1H-pyrrol-3-yl)methanol (CAS 338413-71-1), molecular formula C18H16ClNO and molecular weight 297.78 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, (4-Chlorophenyl)(4-(p-tolyl)-1H-pyrrol-3-yl)methanol (C18H16ClNO) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 297.78 g/mol, it falls into the medium-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.

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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC18H16ClNO
Molecular Weight297.78 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms1

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