Description

4-tert-Butylphthalic Acid CAS NO 14236-13-6 is a high-purity aromatic dicarboxylic acid derivative valued for its unique steric and electronic properties imparted by the tert-butyl substituent. This compound serves as a critical advanced intermediate in the synthesis of specialized polymers, liquid crystals, and pharmaceutical active ingredients. It is essential for manufacturers and R&D teams in the fine chemical, polymer, and advanced material science sectors seeking to develop products with enhanced performance characteristics.

Application

• Polymer & Resin Intermediate: A key monomer for synthesizing high-performance polyesters, polyamides, and alkyd resins, contributing to thermal stability and modified solubility.
• Liquid Crystal Manufacturing: Used in the production of liquid crystal compounds for displays (LCDs) and optical devices, where its structure helps fine-tune mesomorphic properties.
• Pharmaceutical Synthesis: Acts as a versatile building block for creating complex drug molecules and active pharmaceutical ingredients (APIs).
• Organic Synthesis & Catalysis: Employed as a ligand precursor or a functionalized intermediate in metal-organic frameworks (MOFs) and catalytic systems.
• Dye & Pigment Production: Serves as a precursor for creating specialized pigments and dyes with improved lightfastness and color properties.
• Adhesive & Coating Formulations: Incorporated to modify the curing properties and final performance of industrial adhesives and coatings.

Basic Information

Product Name	4-tert-Butylphthalic Acid
CAS No.	14236-13-6
Molecular Formula	C12H14O4
Molecular Weight	222.24 g/mol
Synonyms	4-(1,1-Dimethylethyl)phthalic Acid; 4-(tert-Butyl)phthalic Acid; 4-tert-Butylbenzene-1,2-dicarboxylic Acid; 1,2-Benzenedicarboxylic Acid, 4-(1,1-Dimethylethyl)-; 4-t-Butylphthalic Acid; p-tert-Butylphthalic Acid; NSC 403801
EINECS	238-112-9

Quality Control

Our 4-tert-Butylphthalic Acid is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets exacting purity and consistency standards. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, identity, and impurity profiles. We are committed to supporting our clients' needs for reliable and traceable raw materials.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong bases, 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	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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