is a chemical compound registered under CAS number 7237-47-0, with the molecular formula C52H84F24Hg4N12O16 and a molecular weight of about 2391.62 g/mol. It is also known as C.I. DirectBlack 20, disodium salt (8CI); C.I. 30395; C.I. Direct Black 20. TwoChem supplies for laboratory research and bulk production; product code 521636. Send an inquiry for purity, packaging, price and lead time.