Description

4,5,6-Trimethyl-1,3-benzenediol is a substituted dihydroxybenzene derivative, also known as trimethylhydroquinone. This compound is valued for its role as a key synthetic intermediate and antioxidant precursor in advanced chemical manufacturing. It is primarily sought by producers in the pharmaceutical, agrochemical, and specialty polymer industries for the synthesis of complex molecules and stabilizers.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a substituted hydroquinone core structure.
• Antioxidant Synthesis: Serves as a crucial precursor for manufacturing high-performance phenolic antioxidants used in plastics, rubber, and lubricants to prevent oxidative degradation.
• Agrochemical Production: Utilized in the development of certain herbicides and fungicides, where its aromatic structure contributes to biological activity.
• Polymer Stabilizer: Incorporated into polymer formulations to enhance thermal and UV stability, extending material lifespan.
• Dye and Pigment Intermediate: Used in the synthesis of specialized dyes and organic pigments due to its reactive phenolic groups.
• Research & Development: Employed in organic synthesis and chemical research for creating novel compounds with specific electronic or steric properties.

Basic Information

Product Name	4,5,6-Trimethyl-1,3-benzenediol
CAS No.	5700-67-4
Molecular Formula	C9H12O2
Molecular Weight	152.19 g/mol
Synonyms	1,3-Benzenediol, 4,5,6-trimethyl-; Trimethylresorcinol; 4,5,6-Trimethylresorcinol; 2,4,5-Trimethylresorcinol; 1,3-Dihydroxy-4,5,6-trimethylbenzene; TMHQ (Trimethylhydroquinone isomer); NSC 403714
EINECS	227-175-7

Quality Control

Our 4,5,6-Trimethyl-1,3-benzenediol is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for industrial and research applications. Certificates of Analysis (COA) documenting all critical 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 (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere 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	168°C - 172°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.