12013-10-4 12653-56-4 1317-42-6 CCRIS 7728 COBALT MONOSULFIDE Cobalt sulfide Cobalt sulfide (CoS) Cobalt sulfide (amorphous) Cobalt sulphide Cobalt(2+) sulfide Cobalt(II) sulfide Cobaltous sulfide EINECS 215-273-3 HSDB 5448 Sycoporite