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3 5-Dibromo-2-methylpyridine (CAS # 38749-87-0)

Chemical Property:

Molecular Formula C6H5Br2N
Molar Mass 250.92 Nws
Qhov ntom 1.911 ± 0.06 g / cm3 (Tshaj tawm)
Boling Point 227.9 ± 35.0 ° C (Tshaj tawm)
Flash Point 91.6°C dej
Vapor Siab 0.114mmHg ntawm 25 ° C
pKa 1.24 ± 0.20 (Tshaj tawm)
Kev cia khoom Khaws nyob rau hauv qhov chaw tsaus, inert cua, chav tsev kub
Refractive Index 1.593 ib

Product Detail

Khoom cim npe

 

Taw qhia

3,5-Dibromo-2-methylpyriridine yog cov organic compound nrog cov tshuaj formula C6H5Br2N. Cov qauv yog tias 2 thiab 6 txoj haujlwm ntawm lub nplhaib pyridine yog hloov los ntawm methyl thiab bromine atoms, feem.

 

Xwm:

3,5-Dibromo-2-methylpyriridine yog xim tsis muaj xim rau daj ntseg daj siv lead ua nrog cov ntxhiab tsw. Nws yog ib qho khoom ntawm chav tsev kub thiab muaj me ntsis solubility. Nws muaj qhov kub ntawm 56-58 ° C thiab kub ntawm 230-232 ° C.

 

Siv:

3,5-Dibromo-2-methylpyriridine yog dav siv nyob rau hauv cov organic synthesis. Nws tuaj yeem siv los ua ib qho reagent hauv kev sib txuas ntawm ntau cov organic tebchaw, xws li tshuaj, tshuaj tua kab thiab dyes. Tsis tas li ntawd, nws tseem tuaj yeem siv los ua cov khoom siv hauv kev tshuaj xyuas tshuaj.

 

Txoj Kev Npaj:

Txoj kev npaj ntawm 3,5-Dibromo-2-methylpyriridine feem ntau yog ua los ntawm cov tshuaj tiv thaiv alkylation thiab cov tshuaj tiv thaiv bromination ntawm pyridine. Ua ntej, 2-txoj hauj lwm hauv pyridine yog methylated nrog tus neeg sawv cev methylating nyob rau hauv cov xwm txheej yooj yim los tsim 2-picoline. Tom qab ntawd, 2-methylpyridine reacted nrog bromine muab cov khoom kawg 3,5-Dibromo-2-methylpyridine.

 

Cov ntaub ntawv kev nyab xeeb:

3,5-Dibromo-2-methylpyridine yog khaus thiab corrosive thiab ncaj qha kev sib cuag nrog daim tawv nqaij, qhov muag thiab mucous daim nyias nyias yuav tsum tau zam. Thaum siv, kev tiv thaiv tus kheej yuav tsum tau ua, xws li hnav tsom iav thiab hnab looj tes tiv thaiv, thiab xyuas kom meej tias kev ua haujlwm tau ua tiav hauv qhov chaw muaj cua zoo. Tsis tas li ntawd, nws tseem yog cov khoom siv hluav taws xob thiab yuav tsum tau khaws cia kom deb ntawm cov nplaim taws thiab qhov chaw kub kub. Yog tias nqus tau lossis nqus tau los ntawm qhov yuam kev, koj yuav tsum mus ntsib kws kho mob raws sijhawm.


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  • Sau koj cov lus ntawm no thiab xa tuaj rau peb