C.I. Direct Black 15 is a chemical compound registered under CAS number 6426-75-1, with the molecular formula C13H18N2O2S and a molecular weight of about 266.36 g/mol. It is also known as N'-cycloheptylidenebenzenesulfonohydrazide. NewsChem supplies C.I. Direct Black 15 for laboratory research and bulk production; product code 855878. Send an inquiry for purity, packaging, price and lead time.