2,2',5,5'-Tetramethylbiphenyl CAS 3075-84-1

Purity 97%+In StockPharmaceutical Standards
CAS No.3075-84-1
Molecular FormulaC16H18
Molecular Weight210.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,2',5,5'-Tetramethylbiphenyl CAS 3075-84-1 chemical structure

Description

2,2',5,5'-Tetramethylbiphenyl (CAS 3075-84-1), molecular formula C16H18 and molecular weight 210.31 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 2,2',5,5'-Tetramethylbiphenyl (C16H18) contains a polycyclic aromatic 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 210.31 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.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 2,2',5,5'-Tetramethylbiphenyl 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 FormulaC16H18
Molecular Weight210.31 g/mol
Purity97%+
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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