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2,3-Dimethylhydroquinone (CAS: 608-43-5) - 98% Purity, Kilogram-Scale Supply

2026-07-21 15:26:43
Product Overview

2,3-Dimethylhydroquinone (also known as 2,3-Dimethylbenzene-1,4-diol, CAS: 608-43-5) is a highly versatile and valuable substituted phenolic fine chemical and chiral building block. By featuring a unique dual-methyl substitution adjacent to highly reactive para-dihydroxyl functional groups (hydroquinone core), it acts as an essential cornerstone molecule. It is widely utilized in the synthesis of high-end antioxidants, Vitamin E derivatives, semiconductor photoresist resins, and high-performance polyimide/liquid crystal polymers (LCP).

2,3-Dimethylhydroquinone / 2,3-Dimethylbenzene-1,4-diol

Because the steric hindrance of the ortho-methyl groups poses synthesis challenges, and processing routinely generates positional isomers (such as 2,5- or 2,6-isomers) alongside over-oxidized byproducts, stable high-purity kilogram-scale supply is rare on the global market. Utilizing our mature directional catalytic synthesis and advanced high-vacuum fractional distillation technologies, we have successfully conquered these technical barriers. We proudly offer 98% high-purity 2,3-Dimethylhydroquinone with stable, kilogram-scale (kg-scale) ready stock to seamlessly accelerate your pilot scale-up and new industrial formulations.
Core Advantages

  • High Polymerization Purity (≥ 98.0%): Refined via advanced high-resolution purification processes. Positional isomers, free quinone impurities, and residual solvents are strictly restricted to deliver exceptionally high polymerization activity and molecular weight growth stability in downstream esterification, etherification, and copolymerization assays.

  • Stable Kilogram-Scale Supply: Backed by a standardized pilot-scale manufacturing infrastructure and a robust raw material supply chain. We eliminate the market bottleneck of premium, grams-only reagent catalogs, supporting flexible, bulk purchases from hundreds of grams to continuous multi-kilogram batches.

  • Outstanding Performance Modification: The dual ortho-methyl groups strategically fine-tune the microscopic chain regularity and free volume of downstream polymers. This remarkably improves the solubility and processability of resulting materials in organic solvents while fully preserving the baseline high-temperature resistance and low-dielectric traits of hydroquinone-based matrices.

  • Airtight & Light-Proof Protective Packaging: To counteract the strong tendency of phenolic compounds to absorb moisture or undergo oxidation and discoloration upon exposure to light and air, the entire packaging cycle is executed under a high-purity nitrogen blanket. Vacuum-sealed pharmaceutical-grade double-layer inner bags enclosed in aluminum foil shields guarantee zero quality degradation during long-term storage.

Technical Specifications

  • Chemical Name: 2,3-Dimethylhydroquinone / 2,3-Dimethylbenzene-1,4-diol

  • CAS Registry Number: 608-43-5

  • Molecular Formula: C₈H₁₀O₂

  • Molecular Weight: 138.16

  • Appearance: White to off-white, light gray, or pale yellow crystals, powder, or needle-like crystals.

  • Assay / Purity: ≥ 98.0% (GC/HPLC)

  • Storage Conditions: Store at 2-8°C (or in a cool, dry place), tightly sealed, nitrogen-blanketed, protected from light, and moisture.

  • Standard Packaging: 500g/bag, 1kg/aluminum foil bag, 5kg/fluorinated drum (Customized packaging available upon request).

Disclaimer
All chemical products sold by our company are intended solely for laboratory research, export, polymer process engineering, or industrial manufacturing R&D. They are not intended for use as food additives, cosmetic raw materials, or clinical drugs in humans.


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