What are the physical and chemical properties of 2-[(4-Amino-3-methylphenyl)(ethyl)amino]ethanol sulfate (1:1) (CAS: 25646-77-9)?

2-[(4-Amino-3-methylphenyl)(ethyl)amino]ethanol sulfate (1:1) is a crystalline solid with a molecular weight of approximately 357.43 g/mol. It has a pKa around 10.3, indicating basicity. The compound is moderately soluble in water but less so in organic solvents. It exhibits good reactivity towards proton donors and nucleophiles due to the presence of the amine and hydroxyl groups.