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khoom

6-bromopyridine-2-carboxylic acid methyl ester (CAS # 26218-75-7)

Chemical Property:

Molecular Formula C7H6BrNO2
Molar Mass 216.03 Nws
Qhov ntom 1.579 ± 0.06 g / cm3 (Tshaj tawm)
Melting Point 92-96 ° C (lit.)
Boling Point 289.7 ± 20.0 ° C (Kev kwv yees)
Flash Point 129.03°C dej
Solubility Soluble hauv Methanol
Vapor Siab 0.002mmHg ntawm 25 ° C
Qhov tshwm sim Khoom
Xim Dawb mus rau daj ntseg liab rau daj ntseg xim av mus rau daj
pKa -1.03 ± 0.10 (Kev kwv yees)
Kev cia khoom Inert cua, Chav Kub
Refractive Index 1.554 ib
MDL TIAB SA 06203934

Product Detail

Khoom cim npe

Hazard Cov Cim Xi-xaj
Risk Codes R37/38 - Kab mob ua pa thiab tawv nqaij.
R41 - Riam phom loj rau qhov muag
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.
S39 - Hnav qhov muag / ntsej muag tiv thaiv.
WGK Germany 3
HS Code 293339 0
Kev Ceeb Toom Teeb meem / Irritant / Cia txias

 

Taw qhia

Methyl yog ib qho organic compound nrog cov khoom hauv qab no:

 

1. Cov tsos: Nws yog xim tsis muaj xim rau lub teeb daj.

2. Cov mis mos molecular: C8H7BrNO2.

3. Molecular Luj: 216.05g/mol.

4. Solubility: Nws yog soluble hauv organic solvents xws li ethanol thiab dichloromethane, insoluble hauv dej.

5. Melting Point: txog 26-28 ℃.

 

Nws cov kev siv tseem ceeb suav nrog:

 

1. Organic Synthesis: Methyl feem ntau yog siv los ua cov organic synthesis intermediate rau cov synthesis ntawm ntau yam organic tebchaw.

2. Kev tshawb fawb tshuaj tua kab: Nws kuj yog siv rau hauv kev tshawb fawb tshuaj tua kab ua cov khoom siv ua ntej rau cov tshuaj tua kab.

 

Txoj kev:

 

Methyl L tuaj yeem npaj tau los ntawm cov kauj ruam hauv qab no:

 

1. Ua ntej, 2-picolinic acid (Pyridine-2-carboxylic acid) yog reacted nrog methylisium bromide (methyllitium) los tsim 2-methyl-pyridine (Methyl pyridine-2-carboxylate).

2. Tom qab ntawd, 2-Methyl formate pyridine yog reacted nrog brominated sulfoxide (Sulfuryl bromide) kom tau methyl.

 

Cov ntaub ntawv kev nyab xeeb:

 

1. Kev khaws cia ntawm Methyl L yuav tsum tau nqa tawm hauv qhov chaw uas muaj cua zoo, tsis txhob raug tshav ntuj ncaj qha.

2. Thaum siv, yuav tsum hnav hnab looj tes thiab tsom iav tiv thaiv, tsis txhob kov ncaj qha rau ntawm daim tawv nqaij thiab qhov muag.

3. Nyob rau hauv tus txheej txheem ntawm manipulation yuav tsum tsis txhob nqus ntawm nws vapor, yuav tsum tau ua hauj lwm nyob rau hauv ib tug zoo-ventilated kuaj mob.

4. Nyob rau hauv rooj plaub ntawm kev sib chwv los yog nqus tau pa, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.


  • Yav dhau los:
  • Tom ntej:

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