The CAS register number of Solvent Yellow 19 is 10343-55-2. It also can be called as (3-((1-(Anilinocarbonyl)-2-oxopropyl)azo)-2-hydroxy-5-nitrobenzene-1-sulphonato(3-))chromium and the IUPAC name about this chemical is chromium(3+); (2Z)-2-[(5-nitro-2-oxido-3-sulfonatophenyl)hydrazinylidene]-3-oxo-N-phenylbutanimidate. The molecular formula about this chemical is C₁₆H₁₁CrN₄O₈S and the molecular weight is 471.34. It belongs to the following product categories which include Dyes and Pigments; Solvent Dyestuff and so on. This chemical can be used for coloring paint, lacquer, colored aluminum foil and plastic products.

Physical properties about Solvent Yellow 19 are: (1)#H bond acceptors: 12; (2)#H bond donors: 1; (3)#Freely Rotating Bonds: 4; (4)Polar Surface Area: 177.69Ų; (5)H-Bond Donor: 1; (6)H-Bond Acceptor: 11; (7)Rotatable Bond Count: 5; (8)Tautomer Count: 7; (9)Exact Mass: 470.970271; (10)MonoIsotopic Mass: 470.970271; (11)Topological Polar Surface Area: 211; (12)Heavy Atom Count: 30; (13)Complexity: 766; (14)Defined Bond StereoCenter Count: 1; (15)Covalently-Bonded Unit Count: 2.

First, diazotization the 2-hydroxy-3-amino-5-trinitrobenzene sulfonic acid, then coupling with acetoacetyl aniline, last add the chromium complex to get Solvent Yellow 19.

You can still convert the following datas into molecular structure:
(1)SMILES: O=N(=O)c2cc1N=NC([Cr]3Oc1c(c2)S(=O)(=O)O3)(C(=O)Nc4ccccc4)C(C)=O
(2)InChI: InChI=1/C16H13N4O8S.Cr/c1-9(21)14(16(23)17-10-5-3-2-4-6-10)19-18-12-7-11(20(24)25)8-13(15(12)22)29(26,27)28;/h2-8,22H,1H3,(H,17,23)(H,26,27,28);/q;+2/p-2/rC16H11CrN4O8S/c1-9(22)16(15(23)18-10-5-3-2-4-6-10)17-28-14-12(19-20-16)7-11(21(24)25)8-13(14)30(26,27)29-17/h2-8H,1H3,(H,18,23)
(3)InChIKey: VMOPRKNYGVYZMU-AVCJUKOKAR
(4)Std. InChI: InChI=1S/C16H13N4O8S.Cr/c1-9(21)14(16(23)17-10-5-3-2-4-6-10)19-18-12-7-11(20(24)25)8-13(15(12)22)29(26,27)28;/h2-8,22H,1H3,(H,17,23)(H,26,27,28);/q;+2/p-2
(5)Std. InChIKey: VMOPRKNYGVYZMU-UHFFFAOYSA-L