has part has part has_part has role organic sodium salt fluorochrome poison histological dye environmental contaminant Sirius red 4B CHEBI:88191 675.603 Solaminrot 4B C12=CC=C(C=C1C=C(C(=C2O)/N=N/C=3C=CC(=CC3)/N=N/C=4C=CC(=CC4)S([O-])(=O)=O)S([O-])(=O)=O)NC(C=5C=CC=CC5)=O.[Na+].[Na+] disodium 7-benzamido-4-hydroxy-3-({4-[(4-sulfonatophenyl)diazenyl]phenyl}diazenyl)naphthalene-2-sulfonate 675.04704 UFUQRRYHIHJMPB-DUCFOALUSA-L C29H19N5Na2O8S2 PMID:24809499 PMID:26417357 Disodium 7-benzamido-4-hydroxy-3-((4-((4-sulphonatophenyl)azo)phenyl)azo)naphthalene-2-sulphonate Reaxys:3894142 Chlorantine fast red 5B chebi_ontology PMID:24734585 PMID:22585524 An organic sodium salt resulting from the formal condensation of Sirius red 4B (acid form) with two equivalents of sodium hydroxide. Used as the plasma stain in some trichrome staining methods. C.I. Direct Red 81 disodium salt PMID:25649265 0 PMID:26074308 CAS:2610-11-9 C.I. 28160 PMID:20060376 Direct red 81 InChI=1S/C29H21N5O8S2.2Na/c35-28-25-15-12-23(30-29(36)18-4-2-1-3-5-18)16-19(25)17-26(44(40,41)42)27(28)34-33-21-8-6-20(7-9-21)31-32-22-10-13-24(14-11-22)43(37,38)39;;/h1-17,35H,(H,30,36)(H,37,38,39)(H,40,41,42);;/q;2*+1/p-2/b32-31+,34-33+;; C.I. Direct Red 81 Sirius red 4B(2-)