File:Mordant orange 37 (hydrazone form).svg

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English: SMILES CC1=NN(C(=O)C1NN=C2C=C(C=CC2=O)S(=O)(=O)O)C3=CC=CC=C3 This is the acid. Mordant Orange 37 is the sodium salt of this acid. The colour code shows how it is formed: File:3-amino-4-hydroxybenzenesulfonic acid.svg (in red) diazotation, then coupling with File:3-methyl-1-phenyl-1H-pyrazol-5(4H)-one.svg (in blue). The hydrazone form is more stable then the azo form (File:Mordant orange 37 (azo form).svg) due to the en:Hydrogen bond, shown as dotted lines.
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Author Albmont

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Date/TimeThumbnailDimensionsUserComment
current16:07, 22 March 2015Thumbnail for version as of 16:07, 22 March 2015174 × 258 (24 KB)Albmont (talk | contribs)The hydrazone form is stable due to the H bridge, showned as dotted lines
20:48, 21 March 2015Thumbnail for version as of 20:48, 21 March 2015244 × 169 (23 KB)Albmont (talk | contribs)User created page with UploadWizard

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