For professionals working with chemical compounds, a thorough understanding of their properties and safe handling practices is non-negotiable. 4,5-Dimethylbenzene-1,2-diamine (CAS 3171-45-7) is a valuable chemical intermediate, and knowledge of its characteristics is key to its effective and safe use.

This aromatic diamine is typically presented as a powder, with appearances ranging from faint yellow to brown. Key physical properties include a melting point of 127-129 °C and a boiling point of 272.1 °C at 760 mmHg. While it has limited solubility in water, it is generally soluble in organic solvents. From a safety perspective, it is classified as an irritant (Xi) and may cause skin and eye irritation. Proper personal protective equipment (PPE), such as gloves, eye protection, and lab coats, should always be worn when handling this substance. It is also advisable to work in a well-ventilated area or under a fume hood to avoid inhalation of dust or vapors.

Storage conditions are also critical for maintaining product integrity and safety. 4,5-Dimethylbenzene-1,2-diamine should be stored in a tightly closed container in a cool, dry place, typically between 2-8°C, to prevent degradation and maintain its purity. Sensitivity to air and light also necessitates careful packaging and storage to preserve its chemical properties over time.

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