2,2′-(4,5-Dimethoxy-1,2-phenylene)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) CAS 1338078-40-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1338078-40-2
Molecular FormulaC20H32B2O6
Molecular Weight390.09 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,2′-(4,5-Dimethoxy-1,2-phenylene)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) CAS 1338078-40-2 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2,2′-(4,5-Dimethoxy-1,2-phenylene)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane).

2,2′-(4,5-Dimethoxy-1,2-phenylene)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 1338078-40-2) is a high-purity analytical reference standard with the molecular formula C20H32B2O6 and a molecular weight of 390.09 g/mol.

Structurally, 2,2′-(4,5-Dimethoxy-1,2-phenylene)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (C20H32B2O6) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 390.09 g/mol, it falls into the moderately-high-molecular-weight range. 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).

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.

As a certified reference material (CRM), 2,2′-(4,5-Dimethoxy-1,2-phenylene)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) 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 FormulaC20H32B2O6
Molecular Weight390.09 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991

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