2,4-DIBROMOANISOLE CAS 21702-84-1 tuaj yeem siv dav hauv kev tshawb fawb hauv chaw soj nstuam thiab kev txhim kho thiab kev tshawb fawb tshuaj thiab kev tsim kho.
Shandong Ntseeg
Txoj kev npaj: ntxiv 2,4-dibromofluorobenzene (20.0g, 0.08mol, 1eq.) thiab anhydrous DMF (350ml) rau 500ml puag ncig hauv qab lub raj mis, maj mam ntxiv sodium methoxide (5.2g, 0.09mol, 1.2eq.) mus rau puag ncig. hauv qab lub raj mis, do nruj ntawm chav tsev kub thaum hmo ntuj, thiab tom qab ntawd ntxiv 5% chemicalbookhcl kom tsis txhob muaj cov tshuaj tiv thaiv.
CH2Cl2 extraction (50ml × 3) Ntxuav cov organic theem nrog distilled dej (50ml × 3) Qhuav lub organic theem nrog anhydrous magnesium sulfate, lim kom tshem tawm magnesium sulfate, spin kom tshem tawm cov hnyav kom tau ib tug daj ntseg daj khoom, thiab purify nws nrog silica gel chromatography kem (eluent: petroleum ether) kom tau 30g ntawm cov khoom dawb, nrog rau cov txiaj ntsig ntawm 95%.
2,4-DIBROMOANISOLE CAS 21702-84-1
2,4-DIBROMOANISOLE
|
Khoom npe |
2,4-DIBROMOANISOLE |
||
|
Formula |
C7H6Br2O |
Molecular Luj |
265.93 |
|
CAS Nr. |
21702-84-1 |
Ntau |
500 KG |
|
Cov khoom |
Specification |
|
|
Qhov tshwm sim |
Dawb crystal hmoov |
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|
Assay |
â € 99% |
|
|
|
61-63 : kuv |
|
|
Moisture |
Yog '0.5% |
|
|
ç»ۓ论 TEEB MEEM |
Qhov tshwm sim ua raws li tus qauv |
|
2,4-DIBROMOANISOLE CAS 21702-84-1
Synonym:
CAS:
Cov mis mos molecular:
Molecular Luj: 192.21
IB: 244-536-5
Kub taw tes: 101-106
Qhov ceev: 1.8014 (nruab nrab kwv yees)
Cia tej yam kev mob:
Flashing taw tes: 82-88 ° C / 0.3mm
Cia tej yam kev mob: Khaws hauv qab 30 ° C.
Lub neej txee: 2 xyoos
