Description

Benzoic Acid, 4-Hydroxy-, Diphenylsilylene Ester is a specialized organosilicon compound that serves as a versatile intermediate and protecting group in advanced organic synthesis. Its unique structure, featuring a silylene bridge, offers significant value in creating complex molecules with enhanced stability and tailored reactivity. This high-purity chemical is essential for research and development chemists in the pharmaceutical, agrochemical, and advanced materials sectors who require precise and reliable building blocks for their synthetic pathways.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly where the protection of phenolic hydroxyl groups is required during multi-step reactions.
• Agrochemical Synthesis: Serves as a key precursor in the development of novel herbicides, fungicides, and plant growth regulators.
• Advanced Material Precursor: Employed in the production of specialty polymers, resins, and silicon-containing hybrid materials for electronics and coatings.
• Organic Synthesis Reagent: Acts as a versatile silylating agent and protecting group for sensitive functional groups in complex laboratory-scale and pilot-scale syntheses.
• Chemical Research: Utilized in academic and industrial R&D for exploring new synthetic methodologies and creating novel molecular architectures.

Basic Information

Product Name	Benzoic Acid, 4-Hydroxy-, Diphenylsilylene Ester
CAS No.	129459-90-1
Molecular Formula	C26H20O3Si
Molecular Weight	408.52 g/mol
Synonyms	Diphenylsilylene 4-Hydroxybenzoate; Diphenylsilanediol, bis(4-carboxyphenyl) ester; 4-Hydroxybenzoic Acid Diphenylsilylene Ester; Bis(4-carboxyphenyl) Diphenylsilanediolate; Salicylic Acid Diphenylsilylene Ester (related); Organosilicon Ester of 4-Hydroxybenzoic Acid; Silicon-based Protecting Group Reagent
EINECS	Contact for details

Quality Control

Our Benzoic Acid, 4-Hydroxy-, Diphenylsilylene Ester is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to confirm identity and purity. Certificates of Analysis (COA) detailing all specifications and test results are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled under dry conditions or inert atmosphere to prevent degradation. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	< 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.