Solvent Properties in Industrial Processes with P-Cymene is recognized in the chemical industry for its versatility and reliability as a process solvent. Identified by its Chemical Abstracts Service number, CAS: {cas_number}, this compound features the molecular formula {molecular_formula} and a molecular weight of {molecular_weight}. It is precisely named {iupac_name}, and is further distinguished by its InChIKey, {inchikey}, ensuring unambiguous identification in global regulatory and supply chains. As an aromatic hydrocarbon classified most commonly as a process reagent, P-Cymene is widely used as an intermediate in pharmaceutical and specialty chemical manufacturing.
Examining its physical and chemical characteristics, P-Cymene offers a suite of properties essential to process formulation and solvent selection. Its density, melting point, boiling point, and flash point ensure reliable performance across a wide temperature spectrum, with physical behavior that fits well into both laboratory and production-scale operations. These specifications are critical for process engineers aiming to optimize solvent compatibility, recovery, and safety within their unit operations.
From a regulatory standpoint, compliance is paramount. P-Cymene's REACH registration is recognized by its applicable article and tonnage band, offering clear guidance for manufacturers and importers into the European market. Its inclusion in the TSCA Inventory is documented under the relevant EPA section, making it fully accessible for US-based operations according to current chemical control law. The substance's status with regard to ICH Q3C(R8), specifying solvent residual limits, provides further assurance for pharmaceutical stakeholders managing impurity profiles. The GHS hazard classification specifies its risk phrases and signal word, establishing a foundation for workplace safety and documentation. Where referenced, P-Cymene’s monographs within recognized pharmacopeias lend further regulatory backing for its pharmaceutical applications. If listed, OSHA Permissible Exposure Limits (PEL) and NIOSH Recommended Exposure Limits (REL) are also taken into consideration to support safe industrial hygiene practices.
In terms of applications, the solvent properties of P-Cymene have made it invaluable in the synthesis of active pharmaceutical ingredients and fine chemicals. Its suitability as a reaction medium or a phase transfer agent is well documented, supporting efficient conversions in aromatic substitution, alkylation, and oxidation processes. It is featured in a number of synthetic routes for target drugs where solvent selection and process optimization are critical to the final product’s quality. Although P-Cymene plays a crucial role in these contexts, it is important to note that it is not marketed as a therapeutic agent nor is any medicinal efficacy claimed for the solvent itself.
For packaging and storage, P-Cymene is routinely supplied in standard industry containers such as 25-kilogram drums, 200-kilogram barrels, or intermediate bulk containers (IBCs), supporting efficient logistics and traceability. According to GHS stability criteria, the product should be stored in a cool, well-ventilated area, protected from sources of ignition and away from incompatible materials to maintain quality and prevent hazardous decomposition. Following industry best practices for this class of chemical, the typical shelf life under optimal storage is two years from the date of manufacture, although this may vary per supplier recommendations.
Detailed information about P-Cymene’s properties, regulatory references, and potential applications is linked to authoritative resources, including its PubChem compound record, NIST Chemistry WebBook entry, ECHA dossier, and the EPA TSCA Inventory. These sources provide researchers and process engineers with further documentation essential for regulatory submission, process validation, and quality assurance.
Sources:
PubChem: https://pubchem.ncbi.nlm.nih.gov/compound/{cid}
NIST: https://webbook.nist.gov/cgi/cbook.cgi?Name={cas_number}
ECHA: {echa_url}
EPA TSCA: https://www.epa.gov/tsca-inventory
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