C.I. 26370; C.I. Acid Black 24; C.I. Acid Black 24; C.I. Acid Black 24, disodium salt; Acid Black 24; disodium 8-(phenylamino)-5-[(E)-{4-[(E)-(5-sulfonatonaphthalen-1-yl)diazenyl]naphthalen-1-yl}diazenyl]naphthalene-1-sulfonate; disodium 8-anilino-5-[[4-[(5-sulfonato-1-naphthyl)azo]-1-naphthyl]azo]naphthalene-1-sulfonate; Tracid Black Br; Acid Black 24(26370); Weak Acid Black BR; C.I.Acid Black 24