Description

4-Propoxybenzoic Acid is a versatile organic compound belonging to the class of para-alkoxybenzoic acids, serving as a valuable intermediate in fine chemical synthesis. Its molecular structure, featuring both a carboxylic acid and a propyl ether group, makes it a key building block for creating more complex molecules with tailored properties. This chemical is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable, high-purity intermediates for their processes.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a para-alkoxybenzoic acid moiety.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where its benzoic acid derivative structure imparts specific biological activity.
• Liquid Crystal Materials: Serves as a core component or intermediate in the manufacture of nematic liquid crystals for display technologies.
• Organic Synthesis Building Block: Employed in various organic reactions, including esterification and amidation, to introduce the 4-propoxybenzoyl group into target molecules.
• UV Absorber & Polymer Additive: Acts as a starting material for synthesizing ultraviolet light absorbers and stabilizers used in plastics, coatings, and cosmetics.
• Dye & Pigment Intermediate: Utilized in the synthesis of certain azo dyes and organic pigments, contributing to color fastness and molecular stability.

Basic Information

Item	Detail
Product Name	4-Propoxybenzoic Acid
CAS No.	5438-19-7
Molecular Formula	C10H12O3
Molecular Weight	180.20 g/mol
Synonyms	p-Propoxybenzoic Acid; 4-Propyloxybenzoic Acid; Benzoic acid, 4-propoxy-; 4-n-Propoxybenzoic Acid; 4-(Propyloxy)benzoic Acid; 4-(n-Propoxy)benzoic Acid; PPOBA; 5438-19-7 (CAS Registry Number)
EINECS	226-613-5

Quality Control

Our 4-Propoxybenzoic Acid is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) for each lot, detailing key parameters such as assay, identity, and impurity profiles. Our quality commitment aligns with cGMP principles where applicable, and we support compliance with global regulatory standards including REACH.

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 oxidizing agents, strong bases, 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	145 - 149 °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.