1H-Pyrazole-3-carboxylicacid 5-methyl- (CAS # 696-22-0)
| Hazard Cov Cim | Xi-xaj |
| Risk Codes | R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. |
| Kev nyab xeeb piav qhia | S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag |
Taw qhia
Nws yog ib qho organic compound nrog cov tshuaj formula C5H5N2O2. Nws feem ntau yog xim tsis muaj xim rau daj ntseg daj crystalline khoom.
Cov compound muaj ob pawg ua haujlwm, ib qho yog pyrazole nplhaib thiab lwm qhov yog pawg carboxylic acid ua haujlwm. Nws muaj me ntsis solubility thiab soluble nyob rau hauv dej thiab cov organic solvents. Cov methyl pawg hauv nws cov qauv ua rau nws hydrophobic.
Raws li ib qho heterocyclic compound, 5-methyl-muaj ntau yam kev ua ub no. Nws yog dav siv nyob rau hauv kev tshawb fawb tshuaj thiab tshuaj synthesis, feem ntau ua raw khoom los yog nruab nrab. Cov ntawv thov tshwj xeeb suav nrog kev sib txuas ntawm vitamin B1 analogs, tshuaj tua kab, plavix inhibitors (ib qho tshuaj siv los tiv thaiv kev loj hlob ntawm cov nroj tsuag), thiab lwm yam.
Kev npaj, 5-methyl- tuaj yeem tau txais los ntawm reacting nitrogen atom ntawm pyrazole nplhaib nrog ib tug methylating agent (xws li methyl iodide). Txoj kev no yog ua los ntawm N-methylation cov tshuaj tiv thaiv, txoj kev siv ntau yog cov tshuaj tiv thaiv ntawm cov nucleophile sib raug nrog N-methyl reagent.
