For professionals working with fine chemicals, a deep understanding of product properties and safe handling procedures is indispensable. 2,4-Dihydroxybenzaldehyde (CAS: 95-01-2) is one such compound that requires careful consideration due to its chemical nature. Whether you are a research scientist, a production manager, or a procurement specialist, familiarizing yourself with its characteristics will ensure optimal utilization and safety.

Key Physical and Chemical Properties:

2,4-Dihydroxybenzaldehyde is primarily identified by its appearance: a yellow to tan crystalline powder. Its chemical formula is C7H6O3, and it has a molecular weight of 138.12 g/mol. The compound exhibits several notable properties:

  • Purity: Typically supplied at ≥98% purity, verified by HPLC.
  • Melting Point: Ranges from 135-137°C, indicating a stable solid form under standard conditions.
  • Boiling Point: Exhibits decomposition around 240-242°C, a factor to consider during high-temperature processing.
  • Solubility: It is soluble in ethanol and slightly soluble in water. It also shows good solubility in common organic solvents like ethyl ether, chloroform, and glacial acetic acid. Insoluble in benzene.
  • Reactivity: The phenolic hydroxyl groups are key reactive sites, enabling chelation and specific functionalizations, which are vital for its use as an intermediate.
  • Stability: It can decompose under strong acidic or alkaline conditions. Air sensitivity is also noted, requiring specific storage conditions.

Recommended Storage and Handling:

Proper storage and handling are crucial to maintain the quality and integrity of 2,4-Dihydroxybenzaldehyde. Based on its properties, the following recommendations are standard:

  • Storage Conditions: It is best stored at 2-8°C, in amber glass containers to protect it from light. It should be kept desiccated and in a well-ventilated area. Storing under an inert atmosphere (like nitrogen) is also advisable to prevent degradation due to air exposure.
  • Handling Precautions: As with all chemicals, appropriate personal protective equipment (PPE) should be worn, including gloves, eye protection, and lab coats. Avoid inhalation of dust and ensure adequate ventilation during handling. Referencing the Material Safety Data Sheet (MSDS) for detailed safety information is a mandatory step for any user.
  • Shelf Life: The typical shelf life is around 24 months when stored correctly, ensuring long-term usability for various applications.

Procurement Insights:

When looking to buy 2,4-dihydroxybenzaldehyde, buyers should inquire about the manufacturer's recommended storage and handling guidelines. A reputable chemical supplier will provide comprehensive documentation, including detailed specifications and safety data. Understanding these properties helps users effectively integrate this versatile compound into their synthesis processes, whether for pharmaceutical intermediates, cosmetic raw materials, or dye production, while ensuring safety and product efficacy.