(S)-methyl 3,4-dihydroxybutanoate; CAS No.: 90414-36-1; (S)-methyl 3,4-dihydroxybutanoate. PROPERTIES: (S)-methyl 3,4-dihydroxybutanoate is a crystalline solid. Its molecular formula is C6H11O5, and the molecular weight is approximately 163.15 g/mol. The compound has a melting point of approximately 100-102 C. It is moderately soluble in common organic solvents such as methanol and ethyl acetate, but is poorly soluble in water. For proper storage, it should be kept in a sealed container at room temperature, away from heat and direct sunlight. As a compound containing a butanoate ester group and two hydroxyl groups, it may exhibit certain reactivity and stability. When handling it, protective gloves and eye protection should be worn. In case of accidental contact with skin or eyes, immediate rinsing with water is necessary. APPLICATIONS: In organic synthesis, (S)-methyl 3,4-dihydroxybutanoate serves as a versatile intermediate. The hydroxyl groups can undergo reactions such as etherification and esterification. The ester group can be hydrolyzed to a carboxylic acid. In the pharmaceutical industry, derivatives of this compound can be explored as potential drug candidates. For example, in the development of certain antimicrobial agents, the structure of (S)-methyl 3,4-dihydroxybutanoate can be modified to enhance the drug's antimicrobial activity and selectivity (as reported in medicinal chemistry journals). Additionally, in the field of chemical research, it can be used as a starting material for the synthesis of novel organic compounds with potential applications in catalysis and sensing (as noted in organic chemistry research papers).