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

Chemical Property:

Molecular Formula C9H7F3O4S
Molar Mass 268.21 Nws
Qhov ntom 1.513 ib
Melting Point ≥98oC (txog.)
Boling Point 416.6 ± 45.0 ° C (Predicted)
Flash Point 205.7°C dej
Solubility Chloroform (me ntsis, rhaub), DMSO (me ntsis, rhaub, Sonicated), Methanol (Sli
Vapor Siab 1.1E-07mmHg ntawm 25 ° C
Qhov tshwm sim Khoom
Xim Off-White to Light Beige
pKa 2.02 ± 0.10 (Tshaj tawm)
Kev cia khoom 2-8 ° C
Kev ruaj ntseg Hygroscopic
Refractive Index 1.492 ib

Product Detail

Khoom cim npe

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

2-methylsulfonyl-4-trifluoromethylbenzoic acid (MSTFA) yog cov organic compound nrog cov khoom hauv qab no:

Cov tsos mob: MSTFA yog xim tsis muaj xim rau lub teeb daj.

Solubility: Nws yog soluble nyob rau hauv feem ntau cov organic solvents, xws li dimethylformamide, acetonitrile, thiab methanol.

Kev ruaj ntseg: MSTFA yog ib qho chaw ruaj khov, tab sis nws tuaj yeem decompose thiab tsim cov pa roj carbon monoxide lossis cov tshuaj corrosive thaum khaws cia lossis cua sov.

MSTFA feem ntau yog siv los tshuaj xyuas cov tshuaj tiv thaiv derivatization hauv chemistry, nrog rau cov ntawv thov tshwj xeeb suav nrog:

Hauv kev tsom xam cov roj chromatography-mass spectrometry (GC-MS), MSTFA yog siv los ua ib qho derivative reagent rau cov qauv pretreatment, uas tuaj yeem hloov cov tshuaj uas tsis yog-volatile rau hauv cov derivatives yooj yim.

MSTFA tuaj yeem siv rau kev txiav txim siab ntawm lipids, bioactive tshuaj (xws li ketones thiab amino acids), thiab cov tebchaw nrog cov nquag hydrogens (xws li aldehydes, ketones, thiab acids).

Ib txoj hauv kev zoo rau kev npaj MSTFA yog los ua 2-methylsulfonyl-4-trifluoromethylphenylcarboxylic acid (MSTAA) nrog fluorinated sulfoxide (SO2F2) lossis DAST (difluorothioamide trifluoromethanesulfonyl chloride).

MSTFA cov ntaub ntawv kev nyab xeeb: Nws tuaj yeem tsim cov pa roj carbon monoxide lossis cov tshuaj corrosive, thiab cov kev ntsuas kev nyab xeeb hauv qab no yuav tsum tau ua raws:

Tsis txhob sib chwv nrog daim tawv nqaij, qhov muag, lossis kab mob ua pa, thiab hnav cov khoom tiv thaiv tsim nyog xws li hnab looj tes, tsom iav, thiab lub tshuab ua pa thaum siv.

Ua haujlwm hauv qhov chaw uas muaj cua zoo thiab tsis txhob nqus nws cov vapors lossis hmoov av.

Thaum khaws cia, cia kom deb ntawm qhov chaw hluav taws kub thiab cov khoom siv tsis sib xws.

Kev pov tseg pov tseg yuav tsum ua raws li cov kev cai hauv zos thiab yuav tsum tsis txhob muab pov tseg tsis raug cai.


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