Dibenzoylmethane yog dab tsi?
Dibenzoylmethaneyog ib feem ntawm Glycyrrhiza uralensis Fisch. Nws tuaj yeem qhib Nrf2 thiab tiv thaiv ntau yam qog noj ntshav thiab oxidative puas tsuaj. Dibenzoylmethane yog ib qho analogue ntawm curcumin, uas tuaj yeem ua rau kev sib cais ntawm Keap1 thiab kev hloov pauv nuclear ntawm Nrf2.
Dibenzoylmethane yog ib qho tseem ceeb organic compound. Dibenzoylmethane hmoov yog daj ntseg daj mus rau cov hmoov dawb los yog tsis muaj xim rhomboid flake siv lead ua nyob rau hauv chav tsev kub, nrog ib tug melting point ntawm txog 77-80 degree thiab ib tug boiling point ntawm txog 219-221 degree, nrog lub siab flash point thiab zoo stability. Lub compound yog yooj yim soluble nyob rau hauv organic solvents xws li chlorohydrin thiab chloroform, soluble nyob rau hauv sodium hydroxide tov, tab sis insoluble nyob rau hauv sodium carbonate tov, thiab heev me ntsis soluble nyob rau hauv dej. Raws li ib tug derivative ntawm acetyl acetone nyob rau hauv uas cov hydrogen ntawm methyl pawg yog hloov los ntawm phenyl pab pawg neeg, nws muaj ib tug tshwj xeeb -diketone qauv, uas endows nws muaj ntau yam tseem ceeb lub cev thiab tshuaj. Hauv kev lag luam tshuaj, nws tau txais txiaj ntsig vim nws tsis muaj tshuaj lom, tsis qab, siab pob tshab thiab zoo thermal thiab lub teeb ruaj khov.
| Khoom npe | Dibenzoylmethane |
| CAS | 120-46-7 |
| Cov mis mos molecular | C15H12O2 |
| Molecular hnyav | 224.25 |
| EINECS Number | 204-398-9 |
| Kev cia khoom | Khaws hauv qab +30 degree . |
| Melting point | 77-79 degree (lit.) |
| Solubility | Soluble hauv chloroform (me ntsis) thiab methanol (me ntsis, ultrasonic kho) |
| Qhov tshwm sim | Lub teeb daj crystalline hmoov |
| Boiling point | 219-221 degree 18 mm Hg (lit.) |
| Qhov ntom | 0.800 g/cm3 |
Dab tsi yog cov txheej txheem kev tsim khoom ntawm Dibenzoylmethane?
1. NaOH catalysis: Txoj kev no siv NaOH ua catalyst, benzene ua hnyav, thiab acetophenone reacts nrog methyl benzoate nyob rau hauv cov cua kub. Tom qab cov tshuaj tiv thaiv,Dibenzoylmethanetau txais los ntawm distillation, extraction, crystallization thiab lwm yam. Txawm li cas los xij, txoj kev no muaj qhov tsis zoo ntawm cov khoom qis qis thiab cov xim tsis zoo.
2. EtOH/EtONa catalytic method: EtOH/EtONa yog siv los ua catalyst thiab hnyav, thiab ethyl benzoate thiab acetophenone yog siv los ua raw khoom rau cov tshuaj tiv thaiv. Txawm hais tias cov txheej txheem kev npaj ntawm txoj kev no yog qhov yooj yim, cov xim ntawm Dibenzoylmethane kuj tsis zoo, thiab kev npaj ntawm EtOH / EtONa tshuaj yog qhov nyuaj, thiab tom qab kev kho mob yog qhov txaus ntshai.
Khoom Specification
| Yam khoom | Specification | Cov txiaj ntsig |
| Qhov tshwm sim | Dawb mus rau lub teeb daj crystalline hmoov | lub teeb daj crystalline hmoov |
| Purity | Ntau dua lossis sib npaug rau 99.0% | 99.07% |
| Melting point | 76-80 degree | paub meej |
| Poob rau ziab | Tsawg dua los yog sib npaug rau 0.5% | 0.30% |
| Cov ntsiab lus tshauv | Tsawg dua lossis sib npaug rau 0.1% | 0.02% |
| Xaus: | Ua raws li kev lag luam specification. | |
Dibenzoylmethane siv qhov twg?
1. Yas stabilizer: Dibenzoylmethaneyog ib qho tseem ceeb lub teeb stabilizer thiab kub stabilizer rau thermoplastics xws li polyvinyl chloride (PVC) yas thiab acrylonitrile butadiene styrene (ABS) resin. Nws tuaj yeem tsis tsuas yog txhim kho cov cua sov ua haujlwm thiab pob tshab ntawm cov khoom yas, tab sis kuj txhim kho cov nag lossis daus thiab "zinc hlawv" tshwm sim thaum ua haujlwm. Hauv kev tsim cov dej ntxhia dej, pob tshab PVC nplooj ntawv, cov khoom siv membrane, thiab lwm yam, nws tuaj yeem txhim kho kev ua tau zoo ntawm cov khoom thaum siv nrog lub ntsiab stabilizer Ca / Zn lossis Ba / Zn.
2. Analytical reagent: Dibenzoylmethane tuaj yeem siv los ua kev tshuaj ntsuam reagent rau kev txiav txim siab ntawm carbon disulfide thiab thallium, nrog rau kev txiav txim siab gravimetric ntawm uranium thiab kev txiav txim siab photometric ntawm U+4. Tsis tas li ntawd, nws tseem tuaj yeem siv los rho tawm ntau yam hlau, xws li nyiaj, txhuas, barium, calcium, tooj liab, thiab lwm yam, thiab muaj txiaj ntsig tseem ceeb hauv kev tshawb fawb tshuaj thiab metallurgy.
3. Kev tu tawv nqaij thiab kev tiv thaiv tshav ntuj: Dibenzoylmethane muaj lub luag haujlwm ntawm absorbing ultraviolet rays, thiab tuaj yeem siv los ua tshuaj pleev thaiv hnub thiab tshuaj pleev thaiv hnub los tiv thaiv daim tawv nqaij los ntawm tshav ntuj. Nws cov yam ntxwv tsis muaj tshuaj lom thiab tsis ua rau khaus ua rau nws muaj cov ntawv thov dav dav hauv cov tshuaj pleev ib ce.
HTML5 atlas ntawm Dibenzoylmethane
|
|
1 HNMR Ntawm Dibenzoylmethane
|
|
Peb yuav tsum xyuam xim rau dab tsi thaum siv Dibenzoylmethane?
1. Dibenzoylmethane ua rau khaus qhov muag thiab tawv nqaij, thiab yuav tsum tau ntxuav nrog dej kom ntau tam sim ntawd tom qab sib cuag. Hnav cov hnab looj tes thiab tsom iav uas tsim nyog thaum siv.
2. Tsis txhob sib cuag nrog cov oxidant muaj zog thaum lub sij hawm cia thiab siv, thiaj li tsis ua rau muaj kev phom sij txaus ntshai.
Yuav ua li cas thiab qhov twg yuav Dibenzoylmethane hmoov lag luam wholesale?
Koj tuaj yeem tso siab rau peb qhov kev txiav txim vim tias peb muaj cov ntaub ntawv zoo ntawm kev muag tshuaj qhia kev cai lij choj.
Peb ua qhov kev kuaj xyuas ywj pheej ntawm txhua yam khoom thiab tom qab ntawd muag rau peb cov neeg siv khoom hwm.
Xa koj Cov Lus Nug kom paub meej ntxiv, Nyem email:allen@faithfulbio.comTam sim no.
Muaj ntau txoj kev xa khoom rau koj xaiv
|
Tsheb thauj mus los |
Shipping txoj kev |
Cargo hnyav xav tau |
Qhov zoo |
|
3-7 hnub |
DHL, Lub teb chaws Yelemees DHL, Lub teb chaws Yelemees DPD, |
Haum rau qis dua 50kg. |
Peb muaj warehouses nyob rau hauv lub teb chaws Yelemees thiab California, teb chaws USA, |
|
7-15 hnub |
Los ntawm Cua |
Haum rau ntau tshaj 50kg. |
|
|
15-60 hnub |
Los ntawm Hiav Txwv |
Haum rau ntau tshaj 500kg. |
Xa koj Cov Lus Nug kom paub meej ntxiv, Nyem email:allen@faithfulbio.comTam sim no.
Tsis lees paub: Cov ntawv luam tawm ntawm lub xaib no yog siv los txhawb kev sib pauv kev kawm thiab kev kawm, thiab tsis txhais hais tias lub vev xaib no pom zoo nrog nws cov kev xav lossis lees paub qhov tseeb ntawm nws cov ntsiab lus. Thov lim kom zoo. Yog tias koj ntseeg tias tsab xov xwm no ua txhaum, thov hu rau tus thawj tswj hwm. Peb tsis muaj lub luag haujlwm rau qhov tshwm sim ntawm kev siv cov ntaub ntawv thiab cov kev pabcuam hauv lub vev xaib no.
Nco tseg: Cov tshuaj no yuav tsum tau siv rau kev tshawb fawb nkaus xwb. Cov lus thov no tsis tau raug soj ntsuam los ntawm Food and Drug Administration. Thov nrog koj tus kws kho mob tham thiab kawm txog cov kev tshawb fawb muaj ua ntej siv lawv. Cov khoom no tsis yog tsim los kuaj xyuas, kho, kho, lossis tiv thaiv txhua yam kab mob.
Cim npe nrov: dibenzoylmethane cas 120-46-7, Suav teb, lwm tus neeg, manufacturers, hoobkas, customized, lag luam wholesale, yuav, nqe, tej, ntshiab, tsim, luv nqi, muag, Tshuag, dawb qauv, raw hmoov, raw khoom, ua nyob rau hauv Suav teb