(R)-Cyclopropyl-(3-methoxyphenyl)methanamine hydrochloride is a chiral amine building block featuring a cyclopropyl group and a 3-methoxyphenyl substituent. It is supplied as a hydrochloride salt to enhance stability and handling properties. This compound serves as a key chiral intermediate in pharmaceutical research and development. Its primary application is in the synthesis of active pharmaceutical ingredients (APIs), particularly those targeting the central nervous system. The specific stereochemistry (R-configuration) is crucial for biological activity in many drug candidates, making it a valuable precursor for constructing molecules with desired pharmacological profiles. As a chiral amine, it is also a versatile synthon in asymmetric synthesis and medicinal chemistry. Its structure combines aromatic and alicyclic components, offering opportunities for structure-activity relationship (SAR) exploration.