4-Chloro-1-methyl-2-phenylbenzene CAS 19482-17-8

Purity 97%+In StockPharmaceutical Standards
CAS No.19482-17-8
Molecular FormulaC13H11Cl
Molecular Weight202.68 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Chloro-1-methyl-2-phenylbenzene CAS 19482-17-8 chemical structure

Description

As a certified reference material (CRM), 4-Chloro-1-methyl-2-phenylbenzene 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.

4-Chloro-1-methyl-2-phenylbenzene (CAS 19482-17-8), molecular formula C13H11Cl and molecular weight 202.68 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-Chloro-1-methyl-2-phenylbenzene (C13H11Cl) contains chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 202.68 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

Physical & Chemical Properties

Molecular FormulaC13H11Cl
Molecular Weight202.68 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Halogen ContentCl-containing

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