In the title compound [Ca(C12H25O4S)2]n. the unique CaII ion lies on an inversion center and is coordinated in a slightly distorted octahedral environment by six O atoms from dodecyl sulfate anions. The crystal structure is based on hydrocarbon (dodecyl sulfate) layers which sandwich the CaII ions. Within the layers. https://www.markymarkscott.com/product-category/ceramic-cushion-brush/