Cov khoom
Methylurea
Methylurea Chemical Properties
| Melting point | ~ 93 ° C |
| Boiling point | 131.34°C (kev kwv yees) |
| ceev | 1.2040 Nws |
| vapor siab | 0.003-0.005Pa ntawm 20-23.3 ℃ |
| Refractive Index | 1.4264 (kwv yees) |
| cia temp. | Muab kaw rau hauv qhuav, Chav Kub |
| solubility | 1000g / l (Lit.) |
| pka ua | 14.38 ± 0.46 (Kev kwv yees) |
| daim ntawv | Crystalline Khoom |
| Specific Gravity | 1.204 ib |
| xim | Dawb mus rau dawb |
| PH | 6.7 (50g / l, H2O, 20 ℃) |
| Dej Solubility | 1000 g / L (20 ºC) |
| BRN | 878189 ib |
| InChIKey | XGEGHDBEHXKFPX-UHFFFAOYSA-N |
| LogP | -1.16 ntawm 25 ℃ thiab pH 7.7 |
| CAS DataBase Reference | 598-50-5 (CAS DataBase Reference) |
| NIST Chemistry Reference | Urea, methyl-(598-50-5) |
| EPA Tshuaj Registry System | Methylurea (598-50-5) |
Methylurea Product Description
6-Amino-1,3-dimethyluracil yog cov tshuaj sib xyaw nrog cov mis mos molecular C6H9N3O.Nws yog ib qho organic compound teej tug mus rau tsev neeg uracil.Cov compound muaj ib lub nplhaib uracil nrog ib pawg amino (NH2) txuas rau 6-txoj hauj lwm thiab ob pawg methyl (CH3) txuas rau 1- thiab 3-txoj hauj lwm.Cov qauv tshuaj muaj peev xwm qhia tau tias: txaus ||CH3--C--C--C--N--C--CH3 || ammonia 6-Amino-1,3-dimethyluracil yog ib qho nruab nrab hauv kev sib txuas ntawm ntau yam tshuaj sib txuas.Dav siv nyob rau hauv zus tau tej cov tshuaj antiviral thiab antitumor tshuaj.Nws yog cov khoom pib rau kev sib txuas ntawm nucleoside analogs rau kev kho mob ntawm tus kab mob thiab mob qog noj ntshav.
Tsis tas li ntawd, 6-amino-1,3-dimethyluracil kuj tseem siv rau hauv cov tshuaj pleev ib ce.Nws tuaj yeem siv los ua cov khoom siv hauv kev zoo nkauj thiab kev tu tus kheej xws li cov tshuaj pleev ib ce thiab tshuaj pleev ib ce.Nws cov khoom ua rau nws tsim nyog siv los ua cov tawv nqaij txias thiab moisturizer.Kev ceev faj txog kev nyab xeeb tsim nyog raug pom zoo thaum tuav 6-amino-1,3-dimethyluracil.Khaws rau hauv qhov chaw txias, qhuav kom deb ntawm hluav taws lossis cua sov.Tsis tas li ntawd, nws raug nquahu kom hnav cov khoom tiv thaiv tus kheej xws li hnab looj tes thiab tsom iav kom tiv thaiv kev sib cuag ncaj qha nrog cov khoom sib xyaw.
Hauv kev xaus, 6-amino-1,3-dimethyluracil yog ib qho organic compound siv los ua ib qho nruab nrab hauv kev sib txuas ntawm cov tshuaj, tshwj xeeb tshaj yog cov tshuaj tua kab mob thiab tshuaj tua kab mob.Nws kuj yog siv rau hauv tshuaj pleev ib ce rau nws cov tawv nqaij txias zog.Kev ceev faj txog kev nyab xeeb yuav tsum tau ua raws li thaum tuav cov khoom sib xyaw no.
Cov ntaub ntawv kev nyab xeeb
| Hazard Codes | Xn |
| Risk Statements | 22-68-37-20/21/22 ib |
| Cov lus hais txog kev nyab xeeb | 22-36-45-36/37 ib |
| WGK Germany | 3 |
| RTECS | YT7175000 |
| TSCA | Yog lawm |
| HS Code | 29241900 ib |
Kev siv Methylurea thiab Synthesis
| Chemical Properties | dawb mus rau dawb dawb crystalline khoom |
| Siv | N-Methylurea yog siv los ua cov tshuaj reagent hauv kev sib txuas ntawm bis (aryl) (hydroxyalkyl) (methyl) glycoluril derivatives thiab yog cov khoom muaj peev xwm ntawm caffeine. |
| Txhais | ChEBI: Ib tug tswv cuab ntawm chav kawm ntawm ureas uas yog urea hloov los ntawm ib pawg methyl ntawm ib qho ntawm cov nitrogen atoms. |
| Txoj kev Purification | Crystallize lub urea los ntawm EtOH / dej, ces qhuav nws nyob rau hauv lub tshuab nqus tsev ntawm chav tsev kub.[Beilstein 4 IV 205.] |
