2,4-Dinitrophenylhydrazine CAS 119-26-6 Maʻemaʻe >98.0% (HPLC)

ʻO 2,4-Dinitrophenylhydrazine (CAS: 119-26-6), he hydrazine derivative, he hui C-nitro ʻo ia ka phenylhydrazine i pani ʻia ma nā kūlana 2- a me 4 e nā hui nitro.He kuleana kona ma ke ʻano he reagent.He lālā ia o nā phenylhydrazines a me kahi pūhui C-nitro.A me nā aldehydes, ketone reaction red yellow.He mea puhi a make.Pahū ke maloʻo.He pōʻino i ka hanu ʻana, ʻai ʻia a i ʻole i pili me ka ʻili.Hoʻohana ʻia ma ke ʻano he chromogenic agent no ka hoʻoholo ʻana i nā aldehydes a me nā ketones e ka photometry a no ka hoʻoholo ʻana i nā aldehydes a me nā ketones e ka chromatography layer thin.Ua hoʻohana ʻia ʻo 2,4-Dinitrophenylhydrazine ma ke ʻano he reagent e ʻike i ke alo o nā aldehydes a me nā ketones i loko o nā carbonyl protein.Hiki ke hoʻohana ʻia ma ke ʻano he colorimetric reagent i ka helu quantitative o prednisone.

He maʻalahi ka Dinitrophenylhydrazine i ka haʻalulu a me ka hakakā;he mea pahū haalulu no laila e mālama pono i ka hoʻohana ʻana.Hāʻawi pinepine ʻia ia i pulu e hōʻemi i kona pōʻino pahū.He hydrazine i pani ʻia, a hoʻohana pinepine ʻia e hoʻāʻo maikaʻi i nā hui carbonyl e pili ana me nā aldehydes a me nā ketones.Hiki ke hoʻohana ʻia nā derivatives hydrazone i mea hōʻike i ka ʻike o ka pūhui kumu.ʻAʻole pane ʻo Dinitrophenylhydrazine me nā hui hana ʻē aʻe i loko o ka carbonyl e like me nā waikawa carboxylic, amides, a me nā esters.No nā ʻakika carboxylic, amides a me nā esters, aia ka resonance e pili ana i ke kūpaʻa e like me ka hui pū ʻana o kahi pālua o nā electrons me ka p-orbital o ka carbonyl carbon e hopena i ka hoʻonui ʻana i ka delocalization i loko o ka mole.E nalowale ana kēia kūpaʻa ma ka hoʻohui ʻana i kahi reagent i ka hui carbonyl.