Foni: + 86 21 6460 6569
tsamba_banner

mankhwala

2-Acetyl-3-ethyl pyrazine (CAS#32974-92-8)
  • 2-Acetyl-3-ethyl pyrazine (CAS#32974-92-8) 1

2-Acetyl-3-ethyl pyrazine (CAS#32974-92-8)

Chemical Property:

Molecular Formula Chithunzi cha C8H10N2O
Molar Misa 150.18
Kuchulukana 1.075g/mLat 25°C(lit.)
Melting Point Malamulo a EU 1223/2009
Boling Point 54-56°C1mm Hg(kuyatsa)
Pophulikira 188°F
Nambala ya JECFA 785
Kuthamanga kwa Vapor 0.0258mmHg pa 25°C
Maonekedwe madzi oyera
Mtundu Ola lalanje mpaka Yellow kupita ku Green
Mtengo wa BRN 742901
pKa 0.56±0.10 (Zonenedweratu)
Mkhalidwe Wosungira Osindikizidwa muuma, Kutentha Kwapachipinda
Refractive Index n20/D 1.515(lit.)
MDL Chithunzi cha MFCD00038028
Zakuthupi ndi Zamankhwala Makhiristo achikasu, mtedza, popcorn, fungo la khungu la mkate, mildew ndi fungo la mbatata. Malo otentha 188 °c kapena 55 °c (147Pa). Kusungunuka pang'ono m'madzi, kusungunuka mu zosungunulira za organic ndi ethanol (ethanol angawoneke ngati turbid). Zinthu zachilengedwe zimapezeka mu chiwindi cha nkhumba, koko, ndi zina.

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa Xi - Zosangalatsa
Zizindikiro Zowopsa 36/37/38 - Zokwiyitsa maso, kupuma komanso khungu.
Kufotokozera Zachitetezo S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala.
S36/37/39 - Valani zovala zodzitchinjiriza zoyenera, magolovesi ndi chitetezo chamaso / kumaso.
WGK Germany 3
TSCA Inde
HS kodi 29339900

 

Mawu Oyamba

2-Acetyl-3-ethylpyrazine ndi organic pawiri. Zotsatirazi ndizofotokozera za katundu, ntchito, njira zokonzekera ndi chidziwitso cha chitetezo cha pawiri:

 

Katundu: 2-acetyl-3-ethylpyrazine ndi kristalo wopanda mtundu wolimba wokhala ndi mawonekedwe apadera a nitrogen heterocyclic. Zili ndi kukhazikika kwakukulu komanso kosasunthika pa kutentha kwa chipinda. Ndi mosavuta sungunuka zina organic solvents ndi zochepa sungunuka m'madzi.

 

Ntchito: 2-acetyl-3-ethylpyrazine ili ndi ntchito zambiri zomwe zimagwiritsidwa ntchito popanga organic synthesis. Itha kugwiritsidwa ntchito ngati chothandizira pazinthu zambiri zofunikira pazachilengedwe, monga carbonylation, oxidation, ndi amination.

 

Njira yokonzekera: Pali njira zambiri zokonzekera 2-acetyl-3-ethylpyrazine, ndipo njira yomwe imagwiritsidwa ntchito kawirikawiri imapezeka pochita acetylformamide ndi 3-ethylpyrazine. Mwachindunji, acetoformamide ndi 3-ethylpyrazine zimayamba kusakanikirana, zimatenthedwa pansi pazifukwa zoyenera, ndiyeno zomwe zimapangidwira zimapezedwa ndi crystallization ndi kuyeretsedwa.

Zitha kukwiyitsa maso, khungu, ndi kupuma, ndipo zida zoyenera zodzitetezera monga magalasi, magolovesi, ndi zobvala zodzitetezera ziyenera kuvalidwa pochita opaleshoni. Ngati mwakumana mwangozi kapena kupumira pawiri, sambani kapena funsani dokotala nthawi yomweyo.

  • Zam'mbuyo:
  • Ena:
    • Lembani uthenga wanu apa ndikutumiza kwa ife

    zokhudzana ndi mankhwala