Description

1,4-Benzenedicarboxylic Acid Hydrogen 1-Butyl Ester is a key organic intermediate and monomer, specifically the monobutyl ester of terephthalic acid. This compound is valued for its role in synthesizing specialized polymers and fine chemicals, offering a reactive site for further functionalization. It is primarily required by manufacturers in the polymer, specialty chemical, and pharmaceutical intermediate sectors for producing high-performance materials.

Application

• Polymer Intermediate: A crucial monomer for the synthesis of modified polyesters and polyamides, imparting specific properties like flexibility or altered solubility.
• Liquid Crystal Polymer (LCP) Production: Serves as a building block in the manufacture of high-temperature and high-performance LCPs used in electronics and aerospace.
• Plasticizer Synthesis: Used as a precursor in the production of specialized plasticizers for polymers such as PVC.
• Pharmaceutical Intermediates: Acts as a key starting material or intermediate in the synthesis of certain active pharmaceutical ingredients (APIs).
• Organic Synthesis: Employed in laboratory and industrial settings for the preparation of complex organic molecules, dyes, and pigments.
• Coating Resins: Incorporated into the formulation of advanced coating resins to enhance performance characteristics like adhesion and chemical resistance.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid Hydrogen 1-Butyl Ester
CAS No.	1818-06-0
Molecular Formula	C12H14O4
Molecular Weight	222.24 g/mol
Synonyms	Monobutyl terephthalate; 4-(Butoxycarbonyl)benzoic acid; Terephthalic acid monobutyl ester; Butyl hydrogen terephthalate; 1-Butyl hydrogen terephthalate; 4-Carboxybutyl benzoate; Benzoic acid, 4-(butoxycarbonyl)-; p-(Butoxycarbonyl)benzoic acid
EINECS	217-332-8

Quality Control

Our 1,4-Benzenedicarboxylic Acid Hydrogen 1-Butyl Ester is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity and consistency. Certificates of Analysis (COA) documenting key parameters 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, and well-ventilated area at room temperature (typically 15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases.

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	≤ 10 ppm

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