(E)-2-(2-Chloro-5-ethylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane CAS 1355090-24-2

Description

The occurrence of (E)-2-(2-Chloro-5-ethylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

(E)-2-(2-Chloro-5-ethylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1355090-24-2), molecular formula C16H22BClO2 and molecular weight 292.61 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, (E)-2-(2-Chloro-5-ethylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (C16H22BClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.5, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 292.61 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com