Trifluoromethanesulfonic anhydride, tseem hu ua triflic anhydride, yog cov tshuaj sib xyaw nrog cov formula ₂O.
Nws yog cov kua qaub anhydride muab los ntawm triflic acid.
Qhov sib xyaw no yog cov khoom siv hluav taws xob muaj zog, muaj txiaj ntsig zoo rau kev qhia txog pawg triflyl, CF₃SO₂.
Abbreviated Tf₂O, triflic anhydride yog cov kua qaub anhydride ntawm lub zog acid triflic acid, CF₃SO₂OH.
| Cov khoom | Specification | Cov qhabnias xeem |
| Qhov tshwm sim | Colorless pob tshab kua | Ua raws |
| Purity | 99.0% min | 99.52% |
| F | ≤50 ppm | 13.9 ppm ib |
| CF3SO3H | ≤0.5% | 0.38% |
| SO4 | ≤100 ppm | 7 4,4p |
| Xaus: Tsim nyog. | ||
Trifluoromethanesulfonic Anhydride yog ib qho khoom siv hluav taws xob muaj zog siv hauv cov tshuaj synthesis los qhia txog pawg triflyl.
Trifluoromethanesulfonic anhydride yog siv los hloov phenols thiab imine rau hauv triflic ester thiab NTf pawg. Nws yog ib qho muaj zog electrophile siv rau kev qhia txog triflyl pawg hauv tshuaj synthesis. Nws ua hauj lwm raws li ib tug reagent nyob rau hauv kev npaj ntawm alkyl thiab vinyl triflates, thiab rau stereoselective synthesis ntawm mannosazide methyl uronate pub. Nws ua raws li lub zog rau glycosylation nrog anomeric hydroxy qab zib los npaj polysaccharides.
Kev pabcuam peb tuaj yeem muab tau
1) Daim ntawv cog lus raug cai tuaj yeem kos npe
2) Daim ntawv cog lus tsis pub lwm tus paub tuaj yeem kos npe
3) Xya hnub rov qab lav
Tseem ceeb tshaj: peb tuaj yeem muab tsis tau tsuas yog cov khoom lag luam, tab sis kev pabcuam kev daws teeb meem!
Peb yog cov chaw tsim khoom, peb lub Hoobkas nyob hauv Shandong, tab sis peb kuj tuaj yeem muab kev pabcuam nres ib qho rau koj!
T / T (tex hloov pauv), Western Union, MoneyGram, BTC (bitcoin), thiab lwm yam.
≤25kg: hauv peb hnub ua haujlwm tom qab tau txais cov nyiaj them poob haujlwm. 25kg: ib as
Muaj, peb tuaj yeem muab cov qauv dawb me me rau kev soj ntsuam zoo!
1kg ib lub hnab fpr kuaj, 25kg lossis 50kg ib nruas, lossis raws li koj xav tau.
Khaws lub thawv kaw kom nruj rau hauv qhov chaw qhuav, txias thiab zoo-ventilated.
