3-Methylbiphenyl CAS 643-93-6

Purity >95%In StockPharmaceutical Standards
CAS No.643-93-6
Molecular FormulaC13H12
Molecular Weight168.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Methylbiphenyl CAS 643-93-6 chemical structure

Description

As a certified reference material (CRM), 3-Methylbiphenyl 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.

3-Methylbiphenyl (CAS 643-93-6) is a high-purity analytical reference standard with the molecular formula C13H12 and a molecular weight of 168.23 g/mol.

Structurally, 3-Methylbiphenyl (C13H12) contains 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 168.23 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC13H12
Molecular Weight168.23 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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