C.I. 52015; C.I. Basic Blue 9; Basic Blue 9; Methylene blue; 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride; Basic Blue 9; CI 52015; Methylene Blue anhydrous; Phenothiazin-5-ium, 3,7-bis(dimethylamino)-, chloride; 3,7-Bis(dimethylamino)phenazathionium chloride; Aizen Methylene Blue BH; Aizen Methylene Blue FZ; Bleu de methylene; CCRIS 833; CI Basic Blue 9; Calcozine Blue ZF; Caswell No. 567; Ceruleum methylenum; Chlorure de methylthioninium; Chlorure de methylthioninium [INN-French]; Chromosmon; Cloruro de metiltioninio; Cloruro de metiltioninio [INN-Spanish]; D And C Blue Number 1; D and C Blue No. 1; EINECS 200-515-2; EPA Pesticide Chemical Code 039505; Ext D and C Blue No. 1; External Blue 1; HSDB 1405; Hidaco Methylene Blue Salt Free; Leather Pure Blue HB; M-B Tabs; Methylenblau; Methylenblau [German]; Methylene Blue (medicinal); Methylene Blue 2B; Methylene Blue 2BF; Methylene Blue 2BN; Methylene Blue 2BP; Methylene Blue A; Methylene Blue B; Methylene Blue BB; Methylene Blue BB (zinc free); Methylene Blue BBA; Methylene Blue BD; Methylene Blue BP; Methylene Blue BPC; Methylene Blue BX; Methylene Blue BZ; Methylene Blue D; Methylene Blue FZ; Methylene Blue G; Methylene Blue GZ; Methylene Blue HGG; Methylene Blue I (medicinal); Methylene Blue IAD; Methylene Blue JFA; Methylene Blue N; Methylene Blue NF (medicinal); Methylene Blue NZ; Methylene Blue Polychrome; Methylene Blue SG; Methylene Blue SP; Methylene Blue USP (medicinal); Methylene Blue USP XII (medicinal); Methylene Blue ZF; Methylene Blue ZX; Methylene Blue Zinc Free; Methylene Blue chloride; Methylene Blue chloride (biological stain); Methylenium ceruleum; Methylenum coeruleum; Methylthionine chloride; Methylthionini chloridum; Methylthioninii chloridum; Methylthioninii chloridum [INN-Latin]; Methylthionium chloride; Metiltioninio cloruro; Metiltioninio cloruro [DCIT]; Mitsui Methylene Blue; Modr Methylenova; Modr Methylenova [Czech]; Modr Rozpoustedlova 8; Modr Rozpoustedlova 8 [Czech]; Modr Zasadita 9; Modr Zasadita 9 [Czech]; NSC 215213; Rember; Sandocryl Blue BRL; Schultz No. 1038; Solvent Blue 8; Swiss Blue; Tetramethylene Blue; Tetramethylthionine chloride; UNII-8NAP7826UB; UNII-T42P99266K; Urolene Blue; X 138; Yamamoto Methylene Blue B; Yamamoto Methylene Blue ZF; 3H-Phenothiazine, 7-(dimethylamino)-3-(methylimino)-, 3-methochloride; Phenothiazin-5-ium, 3,7-bis(dimethylamino)-, chloride (1:1); 3,7-bis(dimethylamino)phenothiazin-5-ium; N-[7-(dimethylamino)-3H-phenothiazin-3-ylidene]-N-methylmethanaminium chloride; Methyltltioninium Chloride