2,3,5-trimethylbenzene-1,4-diol

2,3,5-trimethylbenzene-1,4-diol is an aromatic organic compound with the molecular formula C9H12O2 and CAS number 700-13-0. This substance features a benzene ring substituted with three methyl groups and two hydroxyl groups, giving it its characteristic diol structure. With a molecular weight of 152.19 g/mol, it belongs to the family of substituted hydroquinones and exhibits both phenolic and aromatic properties.

2,3,5-trimethylbenzene-1,4-diol is typically a crystalline solid at room temperature with characteristic aromatic properties. As a substituted hydroquinone derivative, it exhibits moderate solubility in polar organic solvents and limited water solubility due to its aromatic nature combined with hydroxyl groups. The presence of three methyl substituents affects its melting point and volatility compared to unsubstituted hydroquinone, while the two hydroxyl groups contribute to its reactivity and hydrogen bonding capabilities.

2,3,5-trimethylbenzene-1,4-diol is primarily used as an intermediate in organic synthesis and chemical manufacturing processes. Its hydroquinone structure makes it valuable in the production of antioxidants, pharmaceutical intermediates, and specialty chemicals. The compound may also serve as a building block for polymer additives, dyes, or other fine chemicals where its specific substitution pattern provides desired properties. Industrial applications typically focus on its role as a precursor for more complex molecules.

2,3,5-trimethylbenzene-1,4-diol requires careful handling due to its hazard classification including acute toxicity, skin and eye irritation, and sensitization potential. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and appropriate respiratory protection. Work should be conducted in well-ventilated areas or under fume extraction. Avoid direct skin and eye contact, and prevent inhalation of dust or vapors. Ensure proper training on emergency procedures and maintain good industrial hygiene practices.

2,3,5-trimethylbenzene-1,4-diol should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Keep containers upright and properly labeled according to GHS requirements. Store away from incompatible materials such as strong oxidizing agents and bases. Ensure storage areas are equipped with appropriate spill containment measures and maintain temperatures within recommended ranges. Regular inspection of containers for integrity is essential to prevent leaks.

2,3,5-trimethylbenzene-1,4-diol exposure requires immediate action due to its irritating and sensitizing properties. For skin contact, immediately remove contaminated clothing and rinse affected areas with plenty of water for at least 15 minutes. In case of eye contact, flush with clean water for 15-20 minutes and remove contact lenses if easily removable. If inhaled, move to fresh air immediately. Seek medical attention promptly, especially for eye exposure or if irritation persists.

2,3,5-trimethylbenzene-1,4-diol waste must be disposed of through licensed hazardous waste management facilities in compliance with local and European waste regulations. The substance cannot be disposed of via normal industrial waste streams due to its hazard profile and environmental toxicity classification. Contaminated materials, containers, and PPE require similar treatment. Maintain detailed waste documentation and use approved waste codes. Consider waste minimization strategies and potential recovery options where technically and economically feasible.

2,3,5-trimethylbenzene-1,4-diol is classified under ADR Class 9 (Miscellaneous dangerous substances), Packing Group III for transportation purposes. This classification requires appropriate packaging, labeling, and documentation according to dangerous goods regulations. Shipments must include proper shipping names, UN numbers, and hazard labels. Transport vehicles need appropriate placarding, and drivers require ADR certification. Packaging must meet UN specification standards and withstand transport conditions while preventing leakage.

2,3,5-trimethylbenzene-1,4-diol is subject to European REACH regulation requiring registration for manufacture or import above one tonne annually. The substance must be classified and labeled according to CLP regulation with appropriate hazard statements and precautionary measures. While not currently listed as an SVHC, its environmental hazard classification may trigger additional reporting requirements. National restrictions may apply in specific applications, and occupational exposure limits should be verified with local authorities.

2,3,5-trimethylbenzene-1,4-diol is available through OYSI, a specialized European distributor of technical chemicals serving industrial customers across the region. OYSI provides compliant sourcing with full documentation including safety data sheets, certificates of analysis, and regulatory compliance information. Professional customers can access this specialty chemical through OYSI's distribution network, ensuring proper handling, packaging, and delivery according to dangerous goods regulations while meeting quality and regulatory requirements.