Description

1,2,3,4-Tetramethylbenzene is a high-purity, symmetrical tetrasubstituted benzene derivative, also known as prehnitene. This specialty aromatic compound is valued for its unique steric and electronic properties, making it a critical intermediate in advanced organic synthesis and materials science. It is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking precise molecular building blocks.

Application

• Organic Synthesis Intermediate: Serves as a key precursor for synthesizing complex polycyclic aromatic hydrocarbons (PAHs), ligands, and specialty fine chemicals.
• Pharmaceutical Research: Used in the development of active pharmaceutical ingredients (APIs) and as a model compound in metabolic and pharmacokinetic studies.
• Material Science: Acts as a monomer or a modifying agent in the production of advanced polymers, liquid crystals, and organic electronic materials.
• Agrochemical Formulations: Employed in the synthesis of specialized herbicides and pesticides where specific aromatic substitution patterns are required.
• Chemical Standard & Calibration: Utilized as a high-purity reference standard in analytical chemistry, particularly in gas chromatography (GC) and mass spectrometry (MS).
• Dye & Pigment Manufacturing: Functions as a starting material for producing specific colorants and optical brighteners.

Basic Information

Product Name	1,2,3,4-Tetramethylbenzene
CAS No.	25619-60-7
Molecular Formula	C10H14
Molecular Weight	134.22 g/mol
Synonyms	Prehnitene; 1,2,3,4-Tetramethylbenzol; Benzene, 1,2,3,4-tetramethyl-; Tetramethylbenzene (mixed isomers); sym-Tetramethylbenzene; NSC 66479
EINECS	247-124-0

Quality Control

Our 1,2,3,4-Tetramethylbenzene is manufactured under a strict quality management system. Each batch is analyzed to ensure it meets high-purity standards suitable for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from strong acids and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to prevent contamination and quality degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Melting Point	78°C - 82°C
Related Substances (GC)	Total impurities ≤ 2.0%
Water Content (KF)	≤ 0.5%

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