BKChem is a vector graphics application designed for Mac, ideal for creating schematic representations of chemical compounds manually. It offers a user-friendly interface for editing compounds efficiently through bond-by-bond drawing with specific length and angle restrictions. This software supports linear formulas, charges, and radicals, simplifying the compound creation process.

Moreover, BKChem provides default models for compounds like benzene, purine, cyclopentadiene, cyclopentane, and cycloheptane, enabling users to start with pre-made structures. The flexibility of BKChem extends to its export functionality, allowing creations to be saved in various formats including SVG, OpenOffice Draw, ODF, PDF, PNG, CML, CML2, Molfies, SMILES, and Encapsulated PostScript.