Description

3-Ethyl-4-Hydroxybenzoic Acid is a versatile organic compound belonging to the class of hydroxybenzoic acids, serving as a key intermediate in advanced chemical synthesis. Its molecular structure, featuring both phenolic and carboxylic acid functional groups, makes it a valuable building block for creating more complex molecules with specific properties. This compound is essential for manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients or functional additives. We supply high-purity grades to meet the stringent requirements of research, development, and industrial-scale production.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those requiring a substituted benzoic acid scaffold.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where its ethyl and hydroxyl groups can be modified for specific biological activity.
• Polymer & Material Science: Acts as a monomer or modifying agent in the creation of specialty polymers, resins, and liquid crystal materials.
• Organic Synthesis Building Block: Employed in research laboratories and fine chemical production for constructing complex organic molecules via esterification, etherification, or coupling reactions.
• UV Absorber & Stabilizer Precursor: Serves as a starting material for manufacturing compounds used to protect materials from photodegradation.

Basic Information

Product Name	3-Ethyl-4-Hydroxybenzoic Acid
CAS No.	105211-75-4
Molecular Formula	C9H10O3
Molecular Weight	166.17 g/mol
Synonyms	4-Hydroxy-3-ethylbenzoic Acid; Benzoic acid, 4-hydroxy-3-ethyl-; 3-Ethyl-4-hydroxybenzoic acid; 3-Ethyl-p-hydroxybenzoic acid; 3-Ethyl-4-HBA; 3-Ethylparaben; 3-Ethyl 4-hydroxybenzoate (acid form)
EINECS	Contact for details

Quality Control

Our 3-Ethyl-4-Hydroxybenzoic Acid is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide Certificates of Analysis (COA) with detailed results for parameters including assay, related substances, and residual solvents. Our quality commitment ensures the material is suitable for demanding applications in regulated industries.

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). This product is hygroscopic (moisture-sensitive); keep the original container tightly sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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