Description

Benzoic Acid, 4-(2-Carboxyethenyl)-, 1-(1,1-Dimethylethyl) Ester, (E)- (9Ci) is a specialized benzoic acid derivative ester, valued for its role as a versatile chemical intermediate and building block in advanced organic synthesis. Its molecular structure, featuring both a tert-butyl ester and an (E)-configured ethenyl carboxylic acid group, makes it a critical precursor for creating complex molecules with tailored properties. This compound is essential for R&D and production in the pharmaceutical, agrochemical, and specialty polymer industries, where precise molecular architecture is required.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a protected carboxylic acid functionality.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Specialty Polymer & Resin Production: Serves as a monomer or cross-linking agent for creating high-performance polymers with specific thermal or chemical resistance.
• Fine Chemical & Dye Manufacturing: Acts as a precursor in the synthesis of complex organic dyes, pigments, and photoactive materials.
• Liquid Crystal & OLED Material Research: Utilized in the development of advanced electronic display and lighting components due to its rigid, conjugated structure.
• Academic & Industrial R&D: A valuable reagent for methodological development and exploring new chemical reactions in organic chemistry laboratories.

Basic Information

Product Name	Benzoic Acid, 4-(2-Carboxyethenyl)-, 1-(1,1-Dimethylethyl) Ester, (E)- (9Ci)
CAS No.	159675-91-9
Molecular Formula	C14H16O4
Molecular Weight	248.28 g/mol
Synonyms	(E)-4-(2-Carboxyvinyl)benzoic acid tert-butyl ester; 4-[(1E)-3-(tert-Butoxy)-3-oxoprop-1-en-1-yl]benzoic acid; tert-Butyl (E)-4-(2-carboxyethenyl)benzoate; (E)-tert-Butyl 4-(2-carboxyvinyl)benzoate; 2-Propenoic acid, 3-[4-[(1,1-dimethylethoxy)carbonyl]phenyl]-, (E)-; Benzoic acid, 4-[(1E)-2-carboxyethenyl]-, 1,1-dimethylethyl ester
EINECS	Contact for details

Quality Control

Our Benzoic Acid, 4-(2-Carboxyethenyl)-, 1-(1,1-Dimethylethyl) Ester, (E)- (9Ci) is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, which includes critical parameters such as assay, isomeric purity, and impurity profiles. Our quality commitment ensures the material is suitable for demanding applications in GMP-compliant pharmaceutical synthesis and advanced research.

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). Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture. Store away from incompatible materials such as strong oxidizing agents, strong bases, and strong acids.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
(E)-Isomer Content (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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