Khoom Description
Cov khoom sib txuas rau CAS No. 9004-74-4 yog Poly (ethylene Glycol) Methyl Ether (MPEG), los yog Polyethylene Glycol Monomethyl Ether. Nws cov mis molecular yog C₅H₁₂O₃ thiab nws EINECS No. yog 215-801-2.
MPEG feem ntau tshwm raws li cov kua nplaum los yog cov hmoov hmoov, nyob ntawm qhov hnyav molecular. Qhov ceev yog li 1.44, tab sis nws yuav txawv me ntsis nrog qhov sib txawv molecular hnyav. Lub melting point yog ntau tshaj 300 degree. Kub taw tes yog 249.3 degree.
Hais txog cov khoom siv tshuaj, MPEG muaj ib pawg methoxy ntawm ib kawg thiab ib pawg hydroxyethyl ntawm lwm kawg. Muaj ntau yam ethylene glycol units hauv cov qauv molecular. Nws yog qhov ruaj khov, tab sis nws tuaj yeem hnov mob nrog qee cov active reagents. Ntxiv mus, nws pawg hydroxyl tuaj yeem hloov tau los ntawm lwm cov pab pawg ua haujlwm reactive kom cov polyethylene glycol derivatives tuaj yeem tsim.
Cov ntaub ntawv yooj yim
| Melting point | 60-64 degree |
| Boiling point | >200 degree / 760mmHg |
| ceev | 1.094 g / ml ntawm 25 degree |
| vapor ceev | >1 (vs huab cua) |
| vapor siab | 0.05 hli Hg (20 degree) |
| Refractive Index | n20/D 1.459 |
| Fp | 268 degree |
| cia temp. | -20 degree |
| solubility | H2O: 50 mg / mL ntawm 25 degree, ntshiab, tsis muaj xim |
| daim ntawv | semisolid |
| Specific Gravity | 1.094 |
| xim | Dawb mus daj daj |
Siv
Surfactants thiab emulsifiers: Poly (ethylene Glycol) Methyl Ether (MPEG) feem ntau yog siv los npaj cov surfactants thiab emulsifiers. Nws muaj kev cuam tshuam zoo thiab ruaj khov thiab siv dav hauv cov khoom tu tus kheej, kev ua zaub mov, tshuaj, thiab lwm yam.
Thickeners: Nws tuaj yeem siv los ua cov thickener los txhim kho cov viscosity thiab ruaj khov ntawm cov khoom thiab tsim nyog rau ntau yam kev lag luam thiab cov khoom siv.
PROTAC linker: Poly (ethylene Glycol) Methyl Ether (MPEG) yog PROTAC txuas, uas yog nyob rau hauv chav kawm PEG thiab tuaj yeem siv los ua ke PROTAC molecules, uas yog qhov tseem ceeb hauv kev tshawb fawb tshuaj thiab kev loj hlob.
Tuam txhab Profile
Gneechem, nyob rau hauv Henan Xeev, Tuam Tshoj, yog ib feem ntawm GNEE Group, nrog 22 xyoo ntawm kev ua lag luam txawv teb chaws, tshwj xeeb hauv kev muab cov khoom zoo tshuaj raw khoom thiab kev lag luam kev pabcuam rau cov neeg siv khoom thoob ntiaj teb. Peb muab cov khoom siv tshuaj lom neeg yooj yim, cov tshuaj zoo thiab cov tshuaj tshwj xeeb rau ntau yam kev lag luam.Peb muaj ISO9001 tau ntawv pov thawj thiab tau lees paub los ntawm ntau qhov kev tsim nyog hauv tsev thiab txawv teb chaws, ua rau peb muaj kev ntseeg siab ntawm peb cov neeg siv khoom.
FAQ
1. Kuv yuav tau txais tus nqi li cas?
-Peb feem ntau hais hauv 24 teev tom qab tau txais koj qhov kev nug (tsis suav hnub so thiab hnub so).
-Yog tias koj xav tau tus nqi nrawm, thov email lossis tiv tauj peb los ntawm lwm txoj kev kom peb tuaj yeem hais lus rau koj.
2. Koj lub sijhawm xa khoom yog dab tsi?
-Nws nyob ntawm tus naj npawb ntawm kev txiav txim thiab lub caij uas koj tso koj xaj.
-Feem ntau, kev txiav txim tuaj yeem xa tuaj tsis pub dhau 7-15 hnub rau kev txiav txim me me thiab 25 hnub rau kev txiav txim loj.
3. Txoj kev xa khoom yog dab tsi?
-Koj tuaj yeem nkoj los ntawm hiav txwv, huab cua, lossis nthuav qhia (EMS, UPS, DHL, TNT, FEDEX, thiab lwm yam).
Cim npe nrov: cas:9004-74-4|poly(ethylene glycol) methyl ether(mpeg), Tuam Tshoj cas:9004-74-4|poly (ethylene glycol) methyl ether (mpeg) manufacturers, lwm tus neeg, Hoobkas
