2-Methylsulfonyl-4-trifluoromethylbenzoic Acid (CAS # 142994-06-7)

2-Methylsulfonyl-4-trifluoromethylbenzoic Acid (CAS # 142994-06-7) hoʻolauna

ʻO ka 2-methylsulfonyl-4-trifluoromethylbenzoic acid (MSTFA) kahi mea hoʻohuihui me nā waiwai penei:

ʻAno: ʻO ka MSTFA he wai kala ʻole i ka wai melemele māmā.

Solubility: Hiki ke hoʻoheheʻe ʻia i ka hapa nui o nā mea hoʻoheheʻe organik, e like me ka dimethylformamide, acetonitrile, a me ka methanol.

Paʻa: ʻO MSTFA kahi pūhui paʻa, akā hiki ke hoʻoheheʻe a hana i nā kinoea ʻawaʻawa a i ʻole nā ​​​​mea ʻino i ka wā mālama a hoʻomehana paha.

Hoʻohana nui ʻia ʻo MSTFA no ka nānā ʻana i nā hopena derivatization i ke kemika, me nā noi kikoʻī e like me:

Ma ke kinoea chromatography-mass spectrometry (GC-MS), hoʻohana ʻia ʻo MSTFA ma ke ʻano he derivative reagent no ka laʻana pretreatment, hiki ke hoʻololi i nā pūhui non-volatile i nā derivative maʻalahi hiki ke nānā.

Hiki ke hoʻohana ʻia ka MSTFA no ka hoʻokaʻawale ʻana i nā lipids, nā mea bioactive (e like me ketones a me nā waikawa amino), a me nā pūhui me nā hydrogens ikaika (e like me nā aldehydes, ketones, a me nā waikawa).

ʻO ke ala maʻamau no ka hoʻomākaukau ʻana i ka MSTFA, ʻo ia ka hana ʻana i ka 2-methylsulfonyl-4-trifluoromethylphenylcarboxylic acid (MSTAA) me ka fluorinated sulfoxide (SO2F2) a i ʻole DAST (difluorothioamide trifluoromethanesulfonyl chloride).

ʻIke palekana MSTFA: Hiki iā ia ke hana i nā kinoea ʻawaʻawa a i ʻole nā ​​​​mea ʻino, a pono e hahai ʻia kēia mau mea palekana:

E hōʻalo i ka pili ʻana me ka ʻili, nā maka, a i ʻole ka ʻōpū hanu, a e hoʻohana i nā mea pale kūpono e like me nā mīkina lima, nā maka aniani, a me nā mea hanu i ka wā e hoʻohana ai.

E hana ma kahi e hoʻoheheʻe maikaʻi ʻia a pale i ka hanu ʻana i kona mahu a lepo paha.

I ka mālama ʻana, e mālama i nā kumu ahi a me nā mea like ʻole.

Pono ka hoʻokuʻu ʻana i nā ʻōpala i nā lula kūloko a ʻaʻole pono e hoʻolei wale ʻia.