;双J酸;6,6-(1,3-亚脲基)双(1,1-萘酚)-3,3-磺酸;7,7-(羰基二亚氨基)二(4-羟基-2-萘磺酸); 英文名称： 4,4-dihydroxy-7,7-ureylenedi(naphthalene-2-sulphonicacid 英文别名： ;7,7-(carbonyldiimino)bis[4-hydroxy-2-naphthalenesulfonicacid];5,5-DIHYDROXY-7,7-DISULPHO-2,2-DINAPHTHYLUREA;JAcidUrea;Bis-JAcid;4,4-dihydroxy-7,7-ureylenedi(naphthalene-2-sulphonicacid);7,7-(Carbonyldiimino)bis[4-hydroxy-2-naphthalenesulfonicacid];6,6-ureylene-bis(1-naphthol-3-sulfonicacid);phosgenated;N,N-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea;7,7-Ureylenebis(4-hydroxy-2-naphthalenesulfonicacid);N,N-Bis[6-(1-naphthol-3-sulfonicacid)]urea;2-Naphthalenesulfonicacid,7,7-(carbonyldiimino)bis4-hydroxy-;4-hydroxy-7-{[(5-hydroxy-7-sulfonaphthalen-2-yl)carbamoyl]amino}naphthalene-2-sulfonicacid; EINECS号： 205-142-9 分子式： C21H16N2O9S2 分子量： 504.4897 InChI： InChI=1/C21H16N2O9S2/c24-19-9-15(33(27,28)29)7-11-5-13(1-3-17(11)19)22-21(26)23-14-2-4-18-12(6-14)8-16(10-20(18)25)34(30,31)32/h1-10,24-25H,(H2,22,23,26)(H,27,28,29)(H,30,31,32) 密度： 1.798g/cm3