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I-2-Methylsulfonyl-4-trifluoromethylbenzoic Acid (CAS# 142994-06-7) Isithombe Esifakiwe
  • I-2-Methylsulfonyl-4-trifluoromethylbenzoic Acid (CAS# 142994-06-7) 1

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

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C9H7F3O4S
I-Molar Mass 268.21
Ukuminyana 1.513
I-Melting Point >98oC (dec.)
I-Boling Point 416.6±45.0 °C(Kubikezelwe)
I-Flash Point 205.7°C
Ukuncibilika I-Chloroform (Kancane, Ishisiwe), i-DMSO (Kancane, Ishisiwe, I-Sonicated), i-Methanol (Sli)
I-Vapor Presure 1.1E-07mmHg ku-25°C
Ukubukeka Okuqinile
Umbala Okumhlophe kuya ku-Light Beige
pKa 2.02±0.10(Kubikezelwe)
Isimo Sesitoreji 2-8°C
Ukuzinza I-Hygroscopic
I-Refractive Index 1.492

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

I-2-methylsulfonyl-4-trifluoromethylbenzoic acid (MSTFA) iyinhlanganisela yemvelo enezici ezilandelayo:

Ukubukeka: I-MSTFA iwuketshezi olungenambala ukuya kokuphuzi ngokukhanyayo.

Ukunyibilika: Kuncibilika kuzincibilikisi eziningi eziphilayo, njenge-dimethylformamide, i-acetonitrile, ne-methanol.

Ukuzinza: I-MSTFA iyinhlanganisela ezinzile, kodwa ingase ibole futhi ikhiqize amagesi anobuthi noma izinto ezibolayo phakathi nokugcinwa noma ukushisisa.

I-MSTFA isetshenziselwa kakhulu ukuhlaziya ukusabela kokuphuma kokunye kukhemistri, ngezinhlelo zokusebenza ezithile ezihlanganisa:

Ekuhlaziyeni i-gas chromatography-mass spectrometry (GC-MS), i-MSTFA isetshenziswa njenge-reagent ephuma kokunye yesampula yokwelashwa kusengaphambili, engaguqula izinhlanganisela ezingaguquguquki zibe okuphuma kokunye ohlaziywa kalula.

I-MSTFA ingasetshenziselwa ukukhipha ama-lipids, izinto eziphilayo (njengama-ketones nama-amino acid), nezinhlanganisela nama-hydrogen asebenzayo (njenge-aldehydes, ama-ketones, nama-asidi).

Indlela evamile yokulungiselela i-MSTFA iwukusabela i-2-methylsulfonyl-4-trifluoromethylphenylcarboxylic acid (MSTAA) nge-fluorinated sulfoxide (SO2F2) noma i-DAST (difluorothioamide trifluoromethanesulfonyl chloride).

Ulwazi lwezokuphepha lwe-MSTFA: Ingase ikhiqize amagesi anobuthi noma izinto ezibolayo, futhi izinyathelo zokuphepha ezilandelayo kufanele zilandelwe:

Gwema ukuthinta isikhumba, amehlo, noma umgudu wokuphefumula, futhi gqoka izinto zokuzivikela ezifanele njengamagilavu, izibuko, nezinsimbi zokuphefumula lapho usebenzisa.

Isebenza endaweni engenawo umoya futhi ugweme ukuhogela umhwamuko noma uthuli lwawo.

Lapho ugcina, gwema imithombo yomlilo nezinto ezingahambelani.

Ukulahlwa kukadoti kufanele kuhambisane nemithetho yendawo futhi akufanele kulahlwe ngokungakhethi.

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