Naphthol Yellow S Hydrate

846-70-8

2-Naphthalenesulfonic acid, 8-hydroxy-5,7-dinitro-, disodium salt (8CI,9CI); Flavianic acid sodium salt (6CI); 1307 Yellow; 1422 Yellow; A.F. Yellow No.1; Acid Leather Yellow NYS; Acid Yellow 1; Acid Yellow S; Amacid Yellow S; C.I. 10316; C.I. Acid Yellow 1; C.I. Food Yellow 1; Calcocid Yellow S; Dolkwal Naphthol Yellow S; Dynacid Yellow S; Edicol Supra Yellow Y; Ext D & C Yellow 7; Ext D and C Yellow No. 7; Ext D&C Yellow No. 7-38007; Ext D&C Yellow No. 7-90126; External D and C Yellow 7; External Yellow 7; FD and C Yellow No. 1; Flavianic acid disodium salt; Hispacid Yellow NSF; Japan Yellow 403-1; Japan Yellow No. 403-1; Java Naphthol Yellow S; KCA Naphthol Yellow S; Kiton Yellow S; Maple Naphthol Yellow S; Monacid Yellow RS; Nankai Naphthol Yellow S; Naphthol Lake Yellow FY; Naphthol Yellow; Naphthol Yellow L; Naphthol Yellow OS; Naphthol Yellow PL; Naphthol Yellow RS; Naphthol Yellow S; Naphthol Yellow S 38007; Naphthol Yellow S 90126; Naphthol Yellow SEL 12; Naphthol Yellow SFQ; Naphthol Yellow SNA; Naphthol Yellow SXX; Naphthol yellow S sodium salt; Naphtocard Yellow S; Naphtol Yellow S; Paper Yellow L; Rakuto Naphthol Yellow S; Sodium flavianate; Solar Yellow NY; Solar Yellow NY conc; Solar Yellow NY, sodium salt; Sulfur Yellow S; Transparent Yellow Lake 16091; Triacid Yellow S; Yellow 403-1; Yellow Lake 71; Yellow No. 403; Yellow No. 403-1

May cause an allergic skin reaction.

[Na+].[Na+].[O-]c1c(cc(c2ccc(cc12)S(=O)(=O)[O-])[N+](=O)[O-])[N+](=O)[O-]

C10 H4 N2 O8 S . 2 Na

358.1919

InChI=1S/C10H6N2O8S.2Na/c13-10-7-3-5(21(18,19)20)1-2-6(7)8(11(14)15)4-9(10)12(16)17;;/h1-4,13H,(H,18,19,20);;/q;2*+1/p-2

IUPAC name: disodium;5,7-dinitro-8-oxidonaphthalene-2-sulfonate

Room Temperature