1.0 2010-04-08 22:12:46 UTC 2015-07-20 23:34:35 UTC FDB016985 4-[(2,4-Dihydroxyphenyl)azo]benzenesulfonic acid Food dye; no longer permitted in the EU 2',4'-Dihydroxyazobenzene-4-sulfonic acid 4-((2,4-Dihydroxyphenyl)azo)benzenesulphonic acid 4-((2,4-Dihydroxyphenyl)diazenyl)benzenesulfonic acid 4-[(2,4-Dihydoxyphenyl)azo]-1-benzenesulfonic acid- C.I. 14270 C.I. Acid orange 6 C.I. Food yellow 8 Chrysoine S E 103 Resorcinol yellow Tropaeolin O C12H10N2O5S 294.283 294.03104213 4-[2-(2,4-dihydroxyphenyl)diazen-1-yl]benzene-1-sulfonic acid 4-[2-(2,4-dihydroxyphenyl)diazen-1-yl]benzenesulfonic acid 2050-34-2 OC1=CC(O)=C(C=C1)N=NC1=CC=C(C=C1)S(O)(=O)=O InChI=1S/C12H10N2O5S/c15-9-3-6-11(12(16)7-9)14-13-8-1-4-10(5-2-8)20(17,18)19/h1-7,15-16H,(H,17,18,19) MHKGJUOEEHNBLE-UHFFFAOYSA-N belongs to the class of organic compounds known as azobenzenes. These are organonitrogen aromatic compounds that contain a central azo group, where each nitrogen atom is conjugated to a benzene ring. Azobenzenes Organic compounds Organoheterocyclic compounds Azobenzenes Aromatic homomonocyclic compounds 1-hydroxy-2-unsubstituted benzenoids 1-hydroxy-4-unsubstituted benzenoids 1-sulfo,2-unsubstituted aromatic compounds Azo compounds Benzenesulfonic acids and derivatives Benzenesulfonyl compounds Hydrocarbon derivatives Organic oxides Organooxygen compounds Organopnictogen compounds Organosulfonic acids Propargyl-type 1,3-dipolar organic compounds Resorcinols Sulfonyls 1-hydroxy-2-unsubstituted benzenoid 1-hydroxy-4-unsubstituted benzenoid 1-sulfo,2-unsubstituted aromatic compound Aromatic homomonocyclic compound Arylsulfonic acid or derivatives Azo compound Azobenzene Benzenesulfonate Benzenesulfonyl group Benzenoid Hydrocarbon derivative Monocyclic benzene moiety Organic 1,3-dipolar compound Organic nitrogen compound Organic oxide Organic oxygen compound Organic sulfonic acid or derivatives Organonitrogen compound Organooxygen compound Organopnictogen compound Organosulfonic acid Organosulfonic acid or derivatives Organosulfur compound Phenol Propargyl-type 1,3-dipolar organic compound Resorcinol Sulfonyl logp 0.78 ALOGPS logs -3.06 ALOGPS solubility 2.53e-01 g/l ALOGPS logp 0.89 ChemAxon pka_strongest_acidic -4.6 ChemAxon pka_strongest_basic -0.37 ChemAxon iupac 4-[2-(2,4-dihydroxyphenyl)diazen-1-yl]benzene-1-sulfonic acid ChemAxon average_mass 294.283 ChemAxon mono_mass 294.03104213 ChemAxon smiles OC1=CC(O)=C(C=C1)N=NC1=CC=C(C=C1)S(O)(=O)=O ChemAxon formula C12H10N2O5S ChemAxon inchi InChI=1S/C12H10N2O5S/c15-9-3-6-11(12(16)7-9)14-13-8-1-4-10(5-2-8)20(17,18)19/h1-7,15-16H,(H,17,18,19) ChemAxon inchikey MHKGJUOEEHNBLE-UHFFFAOYSA-N ChemAxon polar_surface_area 119.55 ChemAxon refractivity 74.96 ChemAxon polarizability 28.11 ChemAxon rotatable_bond_count 3 ChemAxon acceptor_count 7 ChemAxon donor_count 3 ChemAxon physiological_charge -1 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 10465 Specdb::CMs 45567 Specdb::CMs 130813 Specdb::CMs 138547 Specdb::MsMs 97875 Specdb::MsMs 97876 Specdb::MsMs 97877 Specdb::MsMs 162678 Specdb::MsMs 162679 Specdb::MsMs 162680 Specdb::MsMs 2360855 Specdb::MsMs 2360856 Specdb::MsMs 2360857 Specdb::MsMs 2605508 Specdb::MsMs 2605509 Specdb::MsMs 2605510 HMDB37835 #<Reference:0x000055ce33344d18>