Taw qhia ntawmCAS: 13708-12-8|5-METHYLQUINOXALINE
FEMA(mg/kg): Dej haus, dej txias, khoom qab zib, gels, puddings, tag nrho 10.0.
Specification ntawmCAS: 13708-12-8|5-METHYLQUINOXALINE
|
Yam khoom |
SPECIFICATION |
|
Melting point |
20-21 degree (lit.) |
|
Boiling Point |
1.141 g / cm3 |
|
Flashing point |
>230 degree F |
|
ceev |
1.125 g / ml ntawm 25 degree |
|
Vapor siab |
0.0465mmHg ntawm 25 degree |
|
Refractive Index |
n20/D 1.62 (lit.) |
|
Daim ntawv |
zoo |
|
PSA |
25.78000 |
|
LogP |
1.93820 |
|
Acidity coefficient (pKa) |
1.4 0± 0.30 (Tshaj tawm) |
|
tsw |
ntawm 0.10% hauv dipropylene glycol. toasted roasted pob kws nutty kas fes burnt |
|
Xim |
Lub teeb daj rau daj rau txiv kab ntxwv |
|
Kev ruaj ntseg |
Muab kaw rau hauv qhuav, Chav Kub |
Related Articles ntawm CAS: 13708-12-8|5-METHYLQUINOXALINE
Nrog 10 wtpercent sulfated polyborate Hauv zoo (tsis muaj hnyav) ntawm 100 degree; rau 0,05h;.
Txoj kev dav dav: Ntxiv sulfated polyborate (10wt %) mus rau qhov sib xyaw ntawm o-phenylenediamine derivatives (2.0mmol) thiab 1, 2-dione/alpha-hydroxyl ketone ( 2.0 mmol). Do cov tshuaj tiv thaiv sib tov hauv cov roj da dej ntawm 100 degree C. Cov tshuaj tiv thaiv tau saib xyuas los ntawm nyias txheej chromatography (TLC). Tom qab cov tshuaj tiv thaiv tiav, qhov sib tov yog txias rau chav tsev kub thiab quenched nrog dej. Cov khoom raug lim / rho tawm los ntawm EtOAc kom tau txais cov khoom. Cov khoom nyoos yog recrystallized nrog ethanol los yog purified los ntawm kem chromatography siv silica raws li theem nyob ruaj khov thiab EtOAc: tsiaj. Ether raws li theem mobile. Cov khoom uas tshwm sim yog paub cov tebchaw, txheeb xyuas los ntawm melting point thiab 1H thiab 13C NMR spectra. Cov ntaub ntawv spectral tau muab piv nrog cov ntaub ntawv muaj nuj nqis.
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