ammonium hydrogensulphide is a chemical compound registered under CAS number 12124-99-1, with the molecular formula H5NS and a molecular weight of about 51.11 g/mol. Its EINECS (EC) number is 235-184-3. It is also known as Ammonium sulfide ((NH4)(SH)); AMMONIUMHYDROSULPHIDE. FireTardant supplies ammonium hydrogensulphide for laboratory research and bulk production; product code 253622. Send an inquiry for purity, packaging, price and lead time.