642-59-1 3-hydroxy-4-[(4-sulphonaphthyl)azo]naphthalene-2,7-disulphonic acid

product Name 3-hydroxy-4-[(4-sulphonaphthyl)azo]naphthalene-2,7-disulphonic acid Synonyms FD&C Red No. 2; UNII-37RBV3X49K; 3-Hydroxy-4-((4-sulphonaphthyl)azo)naphthalene-2,7-disulphonic acid; (4E)-3-oxo-4-[(4-sulfonaphthalen-1-yl)hydrazono]-3,4-dihydronaphthalene-2,7-disulfonic acid Molecular Formula C20H14N2O10S3 Molecular Weight 538.5276 InChI InChI=1/C20H14N2O10S3/c23-20-18(35(30,31)32)10-11-9-12(33(24,25)26)5-6-13(11)19(20)22-21-16-7-8-17(34(27,28)29)15-4-2-1-3-14(15)16/h1-10,21H,(H,24,25,26)(H,27,28,29)(H,30,31,32)/b22-19+ CAS Registry Number 642-59-1 EINECS 211-385-1 Molecular Structure Density 1.79g/cm3 Refractive index 1.76 Hazard Symbols Risk Codes Safety Description