Oil Blue 35 3528267 143603543 2007-07-09T23:02:52Z Chem-awb 4806773 Removed {{ChemicalSources}} as obsolete [[Image:Oil Blue 35.png|thumb|right|200px|Solvent Blue 35]] '''Oil Blue 35''', also called '''Solvent Blue 35''', '''Blue 2N''', '''Blue B''', '''Oil Blue B''', '''1,4-bis(butylamino) anthraquinone''' and '''CI 61554''', is a blue [[dye]] derived from [[anthraquinone]]. It has the appearance of a dark bluish-black powder, soluble in benzene and toluene and insoluble in water, with melting point 104-105 °C. When exposed to 5% [[hydrochloric acid]] solution, it becomes dirty green. {{SMILESCAS|CAS=17354-14-2|SMILES=O=C2c1ccccc1C (c3c2c(NCCCC) ccc3NCCCC)=O}} Sudan Blue II is used as a dye for alcoholic, ester, and hydrocarbon based solvents, oils, fats, and waxes. It is used also in [[lacquer]]s and [[ink]]s. In some countries, it is used as a [[fuel dye]]. It is also used in some blue [[colored smoke]] formulations. In microscopy, it is used as a [[staining]] dye. A chemically similar dye is [[Solvent Blue 36]]. == External links == [[Category:Anthraquinone dyes]] [[Category:Staining dyes]] [[Category:Solvent dyes]] [[Category:Fuel dyes]]