Basic information
CAS number: 69819-37-4
Molecular formula: C₅H₉N₂Cl (the corresponding free base molecular formula is C₅H₈N₂, and the hydrochloride form adds 1 HCl molecule)
Molecular weight: 132.59 (the molecular weight of the free base is 96.13, and the molecular weight of the hydrochloride is calculated as 96.13 + 36.46 = 132.59)
SMILES code: CN1C=CC(N=C1)C.Cl
Physical and chemical properties
Appearance: Usually white to off-white crystalline powder or solid (based on the common form of imidazole hydrochloride).
Solubility: Because it contains hydrochloride groups (strong polarity), it is presumed to be easily soluble in polar organic solvents such as water, methanol, and ethanol, and poorly soluble in non-polar solvents (such as ether and petroleum ether).
Stability: It has a certain degree of hygroscopicity and should be avoided from exposure to humid environments; it may be unstable to strong acids and alkalis and direct contact with them should be avoided.