What are the physical and chemical properties of Methyl (4S)-4-hydroxy-L-prolinate hydrochloride (CAS: 40126-30-5)?

Methyl (4S)-4-hydroxy-L-prolinate hydrochloride (CAS: 40126-30-5) is a white crystalline powder with a molecular weight of approximately 246.2 g/mol. It has good solubility in water and alcohol. This compound is less reactive under normal conditions but shows moderate acidity due to the presence of the hydrochloride group. It is stable in dry conditions but should be stored in a sealed container to prevent hydrolysis and degradation.