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2-3-Diethyl-5-Methylpyrazine (CAS # 18138-04-0) Cov duab tshwj xeeb
  • 2-3-Diethyl-5-Methylpyrazine (CAS # 18138-04-0) 1

2-3-Diethyl-5-Methylpyrazine (CAS # 18138-04-0)

Chemical Property:

Molecular Formula C9H14N2
Molar Mass 150.22 Nws
Qhov ntom 0.949 g / mL ntawm 25 ° C (lit.)
Boling Point 95 ° C (20 mmHg)
Flash Point 176 ° F
JECFA Number 777 ib
Dej Solubility SIB HLUB
Solubility Chloroform, Methanol
Vapor Siab 0.515mmHg ntawm 25 ° C
Qhov tshwm sim zoo
Specific Gravity 0.950.949 ib
Xim Clear Colorless
pKa 2?+-.0.10(Thov)
Kev cia khoom 2-8 ° C
Refractive Index n20/D 1.498 (lit.)
Physical thiab Chemical Properties Tsis muaj xim rau lub teeb daj, kas fes thiab txiv hmab txiv ntoo aroma. Soluble nyob rau hauv dej tab sis turbid, soluble nyob rau hauv roj thiab organic solvents, miscible nyob rau hauv ethanol ntawm chav tsev kub. Kub taw tes 203 ° c. Cov khoom ntuj muaj nyob hauv kas fes, hazelnuts, qos yaj ywm khoom, thiab lwm yam.
Siv Rau kas fes, nqaij, khoom qab zib, thiab lwm yam

Product Detail

Khoom cim npe

Hazard Cov Cim Xi-xaj
Risk Codes 36/37/38 – Khaus qhov muag, ua pa thiab tawv nqaij.
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.
S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag.
UN IDs NA 1993 / PIB
WGK Germany 3
TSCA Yog lawm
HS Code 29339900 ib
Hazard Class 3
Packing Group III

 

Taw qhia

2,3-Diethyl-5-methylpyrazine yog ib qho organic compound, tseem hu ua DEET (N, N-diethyl-3-methylphenylethylamine).

 

Cov nram qab no yog qee yam ntawm 2,3-diethyl-5-methylpyrazine:

 

1. Cov tsos mob: DEET yog cov xim tsis muaj xim rau lub teeb daj.

2. tsw: muaj ntsim, organic tsw.

3. Solubility: DEET yog soluble hauv cawv, ethers thiab feem ntau cov organic solvents, tab sis muaj tsawg solubility hauv dej.

 

Kev siv tseem ceeb ntawm 2,3-diethyl-5-methylpyrazine yog ib qho tshuaj tiv thaiv kab mob thiab kab mob. Nws muaj txiaj ntsig zoo tiv thaiv kab tsuag ntawm ntau yam kab xws li yoov tshaj cum, zuam, thiab yoov, thiab lwm yam. DEET feem ntau yog siv rau hauv kev tsim cov khoom xws li tshuaj tua kab, yoov tshaj cum, tshuaj tua kab thiab tshuaj tua kab.

 

Cov txheej txheem ntawm kev npaj 2,3-diethyl-5-methylpyrazine feem ntau yog ua los ntawm catalytic ntxiv cov tshuaj tiv thaiv ntawm benzylamine thiab chloroacetic acid, nyob rau hauv lub xub ntiag ntawm alkali, tsim N-benzyl-N-methylacetamide, thiab tom qab ntawd los ntawm lub cev qhuav dej cov tshuaj tiv thaiv kom tau. DEET. Cov txheej txheem npaj tshwj xeeb tuaj yeem hloov kho raws li cov xwm txheej tshwj xeeb thiab cov tshuaj tiv thaiv reagents.

 

Cov ntaub ntawv kev nyab xeeb: 2,3-Diethyl-5-methylpyrazine raug suav hais tias muaj kev nyab xeeb raws li kev siv dav dav. Kev ceev faj yuav tsum tau siv thaum siv qee cov neeg, xws li menyuam yaus, cov poj niam cev xeeb tub thiab lactating, thiab cov neeg muaj kev fab tshuaj rau DEET. Kev raug DEET ntev ntev tuaj yeem ua rau muaj kev phom sij xws li kev ua xua ntawm daim tawv nqaij thiab qhov muag khaus, yog li ntxuav koj txhais tes thiab cov tawv nqaij kom huv si tom qab siv. Yog tias muaj kev tsis xis nyob los yog muaj kev phiv tshwm sim, tsis txhob siv tam sim ntawd thiab sab laj nrog kws kho mob.

  • Yav dhau los:
  • Tom ntej:
    • Sau koj cov lus ntawm no thiab xa tuaj rau peb

    cov khoom muaj feem xyuam