Phenethyl isothiocyanate (PEITC), identified by its CAS number 2257-09-2, is an organic compound recognized for its specific chemical and physical attributes that contribute to its value in various industrial and research applications. A thorough understanding of these properties is essential for chemists and manufacturers to effectively utilize this versatile intermediate.

The appearance of PEITC is typically described as a liquid that ranges from colorless to a pale yellow hue. This visual characteristic provides an initial indicator of its purity and consistency.

Chemically, PEITC possesses a distinct set of properties critical for its role in organic synthesis:

  • Assay Purity: The compound is specified with an assay of 98.0% or higher, ensuring a high level of purity necessary for precise chemical reactions and reliable outcomes.
  • Density: Its density is recorded as 1.094 g/mL at 25 °C, a parameter important for volumetric calculations and process design.
  • Boiling Point: PEITC boils at 75 °C at a reduced pressure of 0.25 mm Hg. This information is vital for distillation and purification processes, as well as for understanding its behavior at elevated temperatures.
  • Molecular Formula and Weight: With a molecular formula of C9H9NS, it has a molecular weight of 163.23900 g/mol. These fundamental properties are crucial for stoichiometric calculations in chemical synthesis.
  • Flash Point: The flash point is reported to be greater than 230 °F. This relatively high flash point indicates a reduced flammability risk, contributing to safer handling and storage protocols in industrial environments.

These properties collectively underscore the utility of phenethyl isothiocyanate as a stable and dependable intermediate. Manufacturers often package it in 200 kg drums, but custom packaging options are available to meet specific customer requirements, further highlighting its adaptability in commercial applications.