- Orange B
-
Orange B 
Disodium 4-[N'-[3-ethoxycarbonyl-5-oxo-1-(4-sulfonatophenyl)-4-pyrazolylidene]hydrazino]-1-naphthalenesulfonateOther namesC.I. Acid Orange 137Identifiers CAS number 15139-76-1 PubChem 5362511 ChemSpider 16735944 
EC number 239-201-5 Jmol-3D images Image 1 - [Na+].[Na+].[O-]S(=O)(=O)c4ccc(/N=N/c2c(nn(c1ccc(cc1)S([O-])(=O)=O)c2O)C(=O)OCC)c3ccccc34
- InChI=1S/C22H18N4O9S2.2Na/c1-2-35-22(28)20-19(21(27)26(25-20)13-7-9-14(10-8-13)36(29,30)31)24-23-17-11-12-18(37(32,33)34)16-6-4-3-5-15(16)17;;/h3-12,27H,2H2,1H3,(H,29,30,31)(H,32,33,34);;/q;2*+1/p-2/b24-23+;;
Key: LLTKITSFUJSOCC-KPOOZVEVSA-L
InChI=1/C22H18N4O9S2.2Na/c1-2-35-22(28)20-19(21(27)26(25-20)13-7-9-14(10-8-13)36(29,30)31)24-23-17-11-12-18(37(32,33)34)16-6-4-3-5-15(16)17;;/h3-12,27H,2H2,1H3,(H,29,30,31)(H,32,33,34);;/q;2*+1/p-2/b24-23+;;
Key: LLTKITSFUJSOCC-AQVGDJFIBI
Properties Molecular formula C22H16N4Na2O9S2 Molar mass 590.49 g/mol 
B (verify) (what is: 
/
?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)Infobox references Orange B is a food dye from the azo dye group. It is approved by Food and Drug Administration (FDA) for use only in hot dog and sausage casings or surfaces, only up to 150 ppm of the finished food weight.[citation needed] It usually comes as disodium salt.
This article about a heterocyclic compound is a stub. You can help Wikipedia by expanding it.
