Khoom Description
Khoom npe: 2-Methylpyrazine
CAS: 109-08-0 Nr
MF: C5H6N2
PIB: 94.11
PIB: 203-645-8
Melting point: -29℃(lit.)
Kub taw tes: 135℃/ 761 mmHg (lit.)
Ceev: 1.03 g / mL ntawm 25℃(lit.)
FEMA: 3309|2-METHYLPYRAZINE
Refractive index: n20/D 1.504 (lit.)
Fp: 122℃F
Specification
| Cov khoom | Specifications |
| Qhov tshwm sim | Colorless pob tshab kua |
| Purity | 99% |
| Cia temp. | 2-8 degree |
| Pob | 25 kg / nruas los yog 200 kg / nruas |
Daim ntawv thov
1. Ua 2-Methylpyrazine ua ib qho tseem ceeb tsw additive nyob rau hauv cov khoom noj, imparting nutty, roasted thiab earthy sau ntawv rau nqaij, chocolates thiab paj kws.
2. Pab 2-Methylpyrazine CAS 109-08-0 ua tshuaj nruab nrab rau kev sib txuas pyrazinamide, thawj kab tshuaj siv hauv kev kho tuberculosis.
3. Kev ua haujlwm ua cov tshuaj reagent hauv cov organic synthesis rau kev txiav txim siab zoo thiab ntau npaum li cas ntawm cobalt, cyanate thiab hlau ions.
Cia thiab ceev faj
Khaws 2-methylpyrazine (CAS 109-08-0, tsis muaj xim mus rau daj daj, tsw ntxhiab tsw, flash point ~ 55 degree, flammable heev) nyob rau hauv kaw amber iav ntim ntawm 15–25℃nyob rau hauv ib tug txias, zoo-ventilated cheeb tsam. Cais tawm ntawm tshav kub, sparks thiab muaj zog oxidants kom tsis txhob muaj hluav taws kub thiab tawg. Hnav hnab looj tes nitrile, looj tsom iav dub thiab daim npog ntsej muag; zam vapor inhalation, daim tawv nqaij / qhov muag sib cuag thiab noj kom tsis txhob muaj qhov khaus khaus. Reseal nruj nreem tom qab siv; pov tseg cov pov tseg raws li cov cai hauv zos.
Dab tsi yog qhov txiaj ntsig ntawm kev noj 2-Methylpyrazine?
2-Methylpyrazine yog ib qho tshuaj tsw qab thiab tshuaj nruab nrab, tsis yog rau tib neeg kev noj qab haus huv ncaj qha; undiluted noj yuav ua rau ua pa thiab gastrointestinal irritation. Hauv cov ntawv thov kev tswj hwm, 2-Methylpyrazine CAS 109-08-0 txhim kho qhov kev hnov mob ntawm cov khoom noj khoom haus, txhawb kev tsim cov tshuaj tiv thaiv kab mob tseem ceeb, thiab ua kom muaj kev tshuaj xyuas cov tshuaj muaj tseeb hauv chav kuaj.
Ntim
Kev thauj mus los & Kev Them Nyiaj
Txog Kev Thauj Mus Los
Raws li cov kev xav tau ntawm peb cov neeg siv khoom, peb tuaj yeem muab ntau yam kev xaiv kev thauj mus los.
Rau kev txiav txim me me, peb muab kev xa khoom huab cua lossis kev pabcuam xa khoom thoob ntiaj teb xws li FedEx, DHL, TNT, EMS, thiab ntau lwm yam tshwj xeeb ntawm kev thauj mus los thoob ntiaj teb.
Peb tuaj yeem thauj los ntawm hiav txwv mus rau ib qho chaw nres nkoj rau qhov loj dua.
Tsis tas li ntawd, peb tuaj yeem muab cov kev pabcuam tshwj xeeb raws li cov kev xav tau ntawm peb cov neeg siv khoom thiab cov yam ntxwv ntawm lawv cov khoom.
* Peb tuaj yeem muab ntau yam kev xaiv them nyiaj rau peb cov neeg siv khoom.
* Thaum cov nyiaj qis qis, cov neeg siv khoom feem ntau them nrog PayPal, Western Union, Alibaba, thiab lwm yam kev pabcuam zoo sib xws.
* Thaum cov lej tseem ceeb, cov neeg siv khoom feem ntau them nrog T / T, L / C thaum pom, Alibaba, thiab lwm yam.
* Tsis tas li ntawd, ntau tus neeg siv khoom yuav siv Alipay lossis WeChat Them kom them nyiaj.
FAQ
1
Kuv puas tuaj yeem tau txais cov qauv ntawm koj?
Re: Yog lawm, peb xav muab cov qauv rau koj raws li koj xav tau.
2
Koj tus MOQ yog dab tsi?
Re: Feem ntau peb cov MOQ yog 1 kg, tab sis qee zaum nws kuj hloov tau thiab nyob ntawm cov khoom sib txawv.
3
Ntev npaum li cas kuv tuaj yeem tau txais kuv cov khoom tom qab them nyiaj?
Re: Yog tias xa los ntawm couriers lossis huab cua, nws feem ntau raug nqi 5-10 hnub.
Yog tias xa los ntawm hiav txwv, nws feem ntau raug nqi 3-40 hnub, uas nyob ntawm koj qhov chaw nyob.
4
Koj puas muaj kev pabcuam tom qab- muag?
Re: Yog lawm, peb yuav qhia koj txog kev nce qib ntawm qhov kev txiav txim, xws li kev npaj cov khoom, kev tshaj tawm, kev thauj mus los ua raws- nce, kev pabcuam kev lis kev cai, kev qhia txuj ci, thiab lwm yam.
Tiv tauj peb
Cim npe nrov: 2-methylpyrazine CAS 109-08-0, Tuam Tshoj 2-methylpyrazine cas 109-08-0 manufacturers, lwm tus neeg, Hoobkas
