Description

4-Ethylcatechol is a high-purity, versatile organic compound belonging to the catechol family, distinguished by the presence of an ethyl substituent. This compound is a critical building block and intermediate in the synthesis of complex molecules, valued for its phenolic structure which imparts antioxidant and metal-chelating properties. It is essential for manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop advanced materials and active ingredients.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a catechol moiety for biological activity or as a precursor for more complex heterocycles.
• Antioxidant Synthesis: Serves as a key raw material for manufacturing high-performance phenolic antioxidants used in plastics, rubber, and fuels to prevent oxidative degradation.
• Agrochemical Production: Acts as an intermediate in the creation of herbicides, fungicides, and plant growth regulators, leveraging its aromatic reactivity.
• Polymer & Resin Modifier: Employed in the production of specialty polymers, epoxy resins, and adhesives to enhance properties like thermal stability and cross-linking density.
• Flavor & Fragrance Ingredient: Utilized as a precursor in the synthesis of certain aroma chemicals, contributing smoky or phenolic notes.
• Research & Development: A valuable reagent in organic chemistry research for studying oxidation reactions, coordination chemistry, and as a ligand in catalyst systems.

Basic Information

Product Name	4-Ethylcatechol
CAS No.	1124-39-6
Molecular Formula	C8H10O2
Molecular Weight	138.16 g/mol
Synonyms	4-Ethyl-1,2-benzenediol; 4-Ethylpyrocatechol; 1,2-Dihydroxy-4-ethylbenzene; 4-Ethylcatechol; Catechol, 4-ethyl-; 4-Ethylbenzene-1,2-diol; 4-EC
EINECS	214-389-6

Quality Control

Our 4-Ethylcatechol is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its nature as an easily oxidized compound, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	51 - 55 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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