Description

5-tert-Butylisophthalic Acid is a high-purity aromatic dicarboxylic acid derivative, valued for its unique sterically hindered structure and versatile reactivity. This compound serves as a critical building block in advanced organic synthesis, enabling the creation of high-performance materials with tailored properties. It is essential for R&D chemists and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop novel compounds and functional materials.

Application

• Pharmaceutical Intermediate: Key starting material or advanced intermediate in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a bulky, lipophilic substituent.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where its tert-butyl group can influence biological activity and environmental stability.
• Polymer & Resin Modifier: Incorporated as a monomer or co-monomer to produce polyesters, polyamides, and epoxy resins, enhancing thermal stability, rigidity, and solubility characteristics.
• Liquid Crystal & OLED Materials: Acts as a core component in the synthesis of monomers for liquid crystal polymers (LCPs) and organic light-emitting diode (OLED) materials, contributing to desired optical and electronic properties.
• Metal-Organic Framework (MOF) Precursor: Serves as an organic linker in the construction of novel MOFs for gas storage, separation, and catalysis applications.
• Corrosion Inhibitor Formulation: Utilized in the development of high-efficiency corrosion inhibitors for industrial cooling and process water systems.
• Dye & Pigment Intermediate: Employed in the synthesis of specialized dyes and organic pigments, where its structure can alter color fastness and solubility.
• Research & Development: A valuable tool in academic and industrial R&D for exploring new synthetic pathways and material science applications.

Basic Information

Product Name	5-tert-Butylisophthalic Acid
CAS No.	2359-09-3
Molecular Formula	C12H14O4
Molecular Weight	222.24 g/mol
Synonyms	5-(1,1-Dimethylethyl)-1,3-benzenedicarboxylic acid; 5-tert-Butylbenzene-1,3-dicarboxylic acid; Isophthalic acid, 5-tert-butyl-; 1,3-Benzenedicarboxylic acid, 5-(1,1-dimethylethyl)-; 5-tert-Butyl-1,3-benzenedicarboxylic acid; 5-(tert-Butyl)isophthalic acid; 2359-09-3; NSC 403697
EINECS	219-108-4

Quality Control

Our 5-tert-Butylisophthalic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and titration methods, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with each shipment and are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases, strong oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	265 - 270 °C
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.