What are the physical and chemical properties of 1-Propyn-1-ylbenzene (CAS: 673-32-5)?

1-Propyn-1-ylbenzene is a crystalline solid with a molecular weight of approximately 111.17 g/mol. It is slightly soluble in water but more soluble in organic solvents like ethanol and acetone. Chemically, it is relatively stable but can undergo reactions such as addition and substitution. The compound has a melting point of about 44-45°C and a boiling point of around 121-123°C. It is less reactive than similar aromatic compounds but can participate in various organic transformations.