4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)cyclohex-3-en-1-yl benzoate CAS 2121513-44-6

Purity 97%+In StockPharmaceutical Standards
CAS No.2121513-44-6
Molecular FormulaC19H25BO4
Molecular Weight328.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)cyclohex-3-en-1-yl benzoate CAS 2121513-44-6 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 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)cyclohex-3-en-1-yl benzoate.

4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)cyclohex-3-en-1-yl benzoate (CAS 2121513-44-6), molecular formula C19H25BO4 and molecular weight 328.21 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)cyclohex-3-en-1-yl benzoate (C19H25BO4) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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).

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.

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 FormulaC19H25BO4
Molecular Weight328.21 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1997

Related Tetramethyl Standards

Recommended Standards

Why CATO?