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2 - Methylthio-3 (ma ọ bụ 5 ma ọ bụ 6) -methylpyrazine (CAS # 2882-20-4)

Ngwongwo kemịkalụ:

Usoro ihe omimi C6H8N2S
Molar Mass 140.21
Njupụta 1.15 g/mL na 25 Celsius C (ọkụ)
Ebe Boling 213-214 Celsius C (ọkụ)
Ebe mgbari 210°F
Nọmba JECFA 797
Ọdịdị mmiri mmiri doro anya
Agba Enweghị agba ruo ọ fọrọ nke nta ka enweghị agba
pKa 0.88± 0.10 (buru amụma)
Ọnọdụ Nchekwa Emechiri ya na nkụ, Okpomọkụ ụlọ
Ntụgharị uche n20/D 1.585(ọkụ)
Njirimara anụ ahụ na kemịkalụ Mmiri mmiri na-enweghị agba, ose akwụkwọ ndụ akwụkwọ ndụ siri ike, almọnd e ghere eghe, isi hazelnut e ghere eghe. Ebe a na-esi esi nke 105 ~ 106 degrees C (1600Pa). Njupụta ikwu (d4) bụ 1.142 ~ 1.145. Na-agbaze ntakịrị n'ime mmiri, soluble na ngwọta ethanol dilute (1:1,70%;1:5,50%).

Nkọwa ngwaahịa

Mkpado ngwaahịa

Akara egwu Xi - mgbakasị ahụ
Koodu ihe egwu 36/37/38 - na-akpasu iwe na anya, usoro iku ume na akpụkpọ ahụ.
Nkọwapụta nchekwa S26 - N'ihe banyere kọntaktị na anya, kpochaa ozugbo na ọtụtụ mmiri ma chọọ ndụmọdụ ahụike.
S36 - Yiri uwe nchebe kwesịrị ekwesị.
NJ UN UN 3334
WGK Germany 3
TSCA Ee
Koodu HS 29339900

 

Okwu mmalite

2-Methylthio-3-methylpyrazine bụ ngwakọta organic. Ihe na-esonụ bụ mmalite nke ọdịdị ya, ojiji ya, usoro nkwadebe na ozi nchekwa ya:

 

Ogo:

1. Ọdịdị: 2-methylthio-3-methylpyrazine na-abụkarị ọcha siri ike ma ọ bụ crystalline, ọ pụkwara ịbụ na uzuzu.

2. Solubility: Ọ na-agbaze n'ọtụtụ ihe mgbaze organic dị ka chloroform, benzene, na ethanol.

 

Jiri:

1. Ọgwụ nje: 2-methylthio-3-methylpyrazine nwere ike iji dị ka fungicides na ụmụ ahụhụ, ma nwee mmetụta dị mma na-achịkwa fungi na pests na ụfọdụ ihe ọkụkụ.

2. Chemistry mmiri: A pụkwara itinye ihe a n'ọrụ na nyocha mmiri iji mụọ omume na nzaghachi physiological nke ihe ndị dị n'oké osimiri.

 

Usoro:

Enwere ike ịmepụta 2-Methylthio-3-methylpyrazine site na usoro ndị a:

1. Condensate methyl thiocyanate na acetone n'okpuru ọnọdụ kwesịrị ekwesị iji mepụta Kawasaki heterocycles.

Mgbe ahụ, a na-emeghachi omume heterocycle Kawasaki na formic acid iji nye 2-methylthio-3-methylpyrazine.

 

Ozi nchekwa:

1. 2-Methylthio-3-methylpyrazine nwere mmetụta na-akpasu iwe na ekwesịrị izere ya na kọntaktị na akpụkpọ ahụ na anya.

2. Ekwesịrị iyi ihe nchekwa kwesịrị ekwesị dị ka uwe aka na enyo enyo mgbe ejiri ma ọ bụ na-ejikwa ya.

3. Ọ bụrụ na ikuru ume ma ọ bụ rie ya, chọọ nlekọta ahụike ozugbo.

 


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