DiaionHP-20isasyntheticadsorbentresincommonlyusedinreversephasecolumnchromatography.It'sanon-polarpolymer,specificallyastyrene-divinylbenzenecopolymer,knownforitshighporosityandabilitytoseparateavarietyofcompounds.It'softenusedforpreconcentration,desalting,andseparatingcompoundslikeantibiotics,peptides,proteins,andnaturalproducts.
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1,8-Bis(dimethylamino)naphthaleneisanorganiccompoundwiththeformulaC10H6(NMe2)2(Me=methyl).Itisclassifiedasaperi-naphthalene,i.e.a1,8-disubstitutedderivativeofnaphthalene.Owingtoitsunusualstructure,itexhibitsexceptionalbasicity.ItisoftenreferredbythetradenameProtonSponge,atrademarkofSigma-Aldrich.[3]Thiscompoundisadiamineinwhichthetwodimethylaminogroupsareattachedonthesameside(periposition)ofanapht...[
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溴代反应一定要注意安全，手套，防毒面具。另外转移液溴也要注意，滴液漏斗一定要检查是否漏。另外，溴代反应一般有HB人气体产生，要注意反应装置不要密封，碱缸吸收。
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Sodiummetabisulfiteorsodiumpyrosulfite(sodiummetabisulphiteorsodiumpyrosulphite)isaninorganiccompoundofchemicalformulaNa2S2O5.Thesubstanceissometimesreferredtoasdisodiummetabisulfite.Itisusedasadisinfectant,antioxidant,andpreservativeagent.[2]Whendissolvedinwateritformssodiumbisulfite.
Sodiummetabisulfitecanbepreparedbytreatingasolutionofsodiumhydroxidewithsulfurdioxide.[3]Whenconductedinwarmwa...[
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Trichloroisocyanuricacidisanorganiccompoundwiththeformula(CONCl)3.Itisusedasanindustrialdisinfectant,bleachingagentandareagentinorganicsynthesis.[1][2][3]Thiswhitecrystallinepowder,whichhasastrong"chlorineodour,"issometimessoldintabletorgranuleformfordomesticandindustrialuse.
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Chloramine-TistheorganiccompoundwiththeformulaCH3C6H4SO2NClNa.Boththeanhydroussaltanditstrihydrateareknown.Botharewhitepowders.Chloramine-Tisusedasareagentinorganicsynthesis.[2]Itiscommonlyusedascyclizingagentinthesynthesisofaziridine,oxadiazole,isoxazoleandpyrazoles.[3]It'sinexpensive,haslowtoxicityandactsasaoxidizingagent.Inaddition,italsoactsasasourceofnitrogenanionsandelectrophiliccations....[
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Fétizonoxidationistheoxidationofprimaryandsecondaryalcoholsutilizingthecompoundsilver(I)carbonateabsorbedontothesurfaceofcelitealsoknownasFétizon'sreagentfirstemployedbyMarcelFétizonin1968.[1]Itisamildreagent,suitableforbothacidandbasesensitivecompounds.ItsgreatreactivitywithlactolsmakestheFétizonoxidationausefulmethodtoobtainlactonesfromadiol.Thereactionisinhibited...[
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CymenedescribesorganiccompoundswiththeformulaCH3C6H4CH(CH3)2.Threeisomersexist:1,2-1,3-,and1,4-.Allarecolorlessliquids,immiscibleinwater,withsimilarboilingpoints.Theyareclassifiedarearomatichydrocarbons.Thebearingtwosubstituents:anisopropyl(CH(CH3)2)groupandamethylgroup.[1]
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