C.I. 26150; C.I. Solvent Black 3; C.I. Solvent Black 3 (8CI); CI 26150; Fat Black HB; Solvent Black 3; fat black for microscopy; sudan black B practical grade; Sudanblack; 2,2-dimethyl-6-[(E)-{4-[(E)-phenyldiazenyl]naphthalen-1-yl}diazenyl]-2,3-dihydro-1H-perimidine