5-Bromo-4-methyl-pyridine-2-carboxylic acid (CAS # 886365-02-2)
Taw qhia
Nws yog ib qho organic compound uas nws cov tshuaj formula yog C7H6BrNO2.
Cov khoom ntawm lub compound muaj xws li:
-Cov tsos mob: tsis muaj xim rau lub teeb daj crystal lossis hmoov
- Melting point: 63-66 ° C
-Boiling Point: 250-252 ° C
Qhov ceev: 1.65g / cm3
Nws feem ntau yog siv los ua ib qho nruab nrab hauv kev sib txuas ntawm lwm cov organic tebchaw. Nws muaj cov ntawv thov tseem ceeb hauv kev siv tshuaj thiab tuaj yeem siv los ua ke cov tshuaj ntawm qee cov tshuaj molecules. Tsis tas li ntawd, nws kuj yog ib qho hluavtaws intermediate rau cov tshuaj tua kab mob zoo heev. Lwm cov kev siv muaj peev xwm suav nrog kev siv cov catalysts, photosensitizing dyes, thiab tshuaj tua kab.
Txoj kev npaj pyridine yog tsim los ntawm bromination ntawm 4-methylpyridine thiab sodium cyanide rau hauv 5-bromo-4-methylpyridine, thiab tom qab ntawd ua rau nws nrog rhenium trioxide hauv dichloromethane los tsim cov khoom lag luam.
Hais txog kev nyab xeeb cov ntaub ntawv, nws muaj qee yam toxicity thiab irritation. Thov xyuam xim rau cov teeb meem hauv qab no thaum siv nws:
-Tsis txhob nqus cov plua plav, pa taws thiab cov pa roj kom tiv thaiv kev sib cuag ntawm daim tawv nqaij thiab qhov muag.
- Hnav cov cuab yeej tiv thaiv tus kheej tsim nyog thaum siv, xws li tshuaj tiv thaiv tsom iav, hnab looj tes tiv thaiv thiab lub ntsej muag tiv thaiv.
-Nws yuav tsum tau siv rau hauv qhov chaw muaj cua zoo thiab ua kom muaj kev nyiam huv ntawm chaw ua haujlwm.
-Storage yuav tsum tau khaws cia rau hauv qhov chaw qhuav, txias, kom deb ntawm hluav taws thiab oxidizing tus neeg sawv cev.
Thaum siv cov hlau, thov ua raws li qhov cuam tshuam txog kev nyab xeeb thiab kev tswj hwm, thiab ntsuas nws cov kev pheej hmoo thiab kev phom sij raws li qhov xwm txheej tshwj xeeb.
