4-Methoxystyrene (stabilized with TBC) CAS 637-69-4

Purity >95%In StockPharmaceutical Standards
CAS No.637-69-4
Molecular FormulaC9H10O
Molecular Weight134.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Methoxystyrene (stabilized with TBC) CAS 637-69-4 chemical structure

Description

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

4-Methoxystyrene (stabilized with TBC) (CAS 637-69-4) is a high-purity analytical reference standard with the molecular formula C9H10O and a molecular weight of 134.18 g/mol.

The molecular framework of 4-Methoxystyrene (stabilized with TBC) (C9H10O) is characterized by a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC9H10O
Molecular Weight134.18 g/mol
Purity>95%
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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