5-BROMO-2-HYDROXY-4-METHYLPYRIDINE (CAS # 164513-38-6)

Nws yog ib qho organic compound nrog cov tshuaj formula C8H8BrNO. Nws muaj cov yam ntxwv hauv qab no: 1. Qhov tsos: Nws yog xim tsis muaj xim lossis lub teeb daj.2. Solubility: Nws tuaj yeem yaj ib nrab hauv dej thiab yooj yim soluble hauv cov kuab tshuaj organic xws li ethanol thiab dimethyl sulfoxide.

3. Tus nqi PH: Nws yog nruab nrab lossis me ntsis acidic hauv cov tshuaj aqueous.

4. Reactivity: Nws yog ib qho electrophilic reagent uas tuaj yeem koom nrog ntau cov tshuaj tiv thaiv organic, xws li cov tshuaj tiv thaiv electrophilic, oxidation tshua, thiab lwm yam.

5. Stability: Nws yog ruaj khov ntawm chav tsev kub, tab sis nws yuav decompose nyob rau hauv qhov kev txiav txim ntawm kub kub, oxidant los yog muaj zog acid.

Nws muaj ntau yam kev siv hauv chav kuaj thiab kev lag luam, suav nrog cov hauv qab no:

1. Raws li cov tshuaj reagent: nws tuaj yeem siv los ua electrophilic reagent, Catalyst lossis txo tus neeg sawv cev hauv cov organic synthesis.

2. Raws li ib tug preservative: Vim nws cov antibacterial zog, nws yuav siv tau rau kev npaj ntawm preservatives, feem ntau siv los tiv thaiv ntoo, textiles, thiab lwm yam.

3. Tshuaj teb: tuaj yeem siv rau hauv cov tshuaj synthesis lossis ua cov tshuaj nruab nrab rau qee yam tshuaj.

Ib txoj hauv kev npaj ntsev yog los ntawm kev ua haujlwm 2-picoline nrog bromine. Cov kauj ruam tshwj xeeb tuaj yeem xa mus rau cov qauv hauv qab no: Ua ntej, raws li qhov tsim nyog cov tshuaj tiv thaiv, 2-methylpyridine reacted nrog bromine kom tau 5-bromo-2-methylpyridine. Tom qab ntawd, nyob rau hauv alkaline tej yam kev mob, 5-bromo -2-methyl pyridine yog kho nrog sodium hydroxide kom tau.

Hais txog cov ntaub ntawv kev nyab xeeb, cov hauv qab no yuav tsum tau sau tseg thaum siv lossis tuav cov hlau:

1. Tsis txhob kov ncaj qha rau ntawm daim tawv nqaij, qhov muag, ua pa, thiab lwm yam. Hnav cov khoom tiv thaiv tus kheej tsim nyog xws li hnab looj tes, tsom iav thiab qhov ncauj qhov ntswg.

2. Khaws ib qho chaw zoo-ventilated thaum siv thiab tsis txhob nqus nws vapor.

3. Kev khaws cia yuav tsum muab tso rau hauv lub thawv kaw, tsis txhob raug tshav ntuj ncaj qha thiab kub siab.

4. Yog tias nqos los yog ua rau tawv nqaij tshwm sim, yaug tam sim nrog dej ntau thiab nrhiav kev pab kho mob raws sij hawm.

5. Hauv kev siv lossis pov tseg ntawm qhov sib xyaw, yuav tsum ua raws li cov cai hauv zos thiab cov kev cai thiab cov txheej txheem kev nyab xeeb.