Ikhwalithi ephezulu ye-Dl-Methionine CAS 59-51-8 powder

incazelo emfushane:

Iphoyinti lokuncibilika:284 °C (dec.)(lit.)

i-alpha:-1～+1°(D/20℃)(c=8,HCl)

Indawo yokubilisa:306.9±37.0 °C(Kubikezelwe)

ukuminyana:1.34

Amanye Amagama:R,S) -2-Amino-4-methylsulfanyl-butyricacid;(RS) -2-Amino-3-methylthiobutanαure;Metion;I-Neston;I-Pedameth;iPetameti;I-Thiomedon;Urimeth

Ukupakishwa:1g-25kg/isikhwama/amabhodlela, ngokuvumelana nezidingo zamakhasimende

Imikhiqizo:Zhanshun

Isikhathi sokuthumela:Sizothumela izimpahla uma sesiyitholile imali

I-Express:Izindlela ezisheshayo: EDEX, DHL, UPS, TNT, njll ngolwandle noma ngokomnotho womoya

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Ulwazi Oluyisisekelo

Iphuzu elincibilikayo: 284 ° C (dec.) (Lit.)
Ukukhanya okuqondile: -1 ～+1 ° (d/20 ℃) (C = 8, HCL)
Indawo yokubilisa: 306.9 ± 37.0 ° C (Predict)
Ukuminyana: 1.34FEMA3301 |D, L-Methionine
Inkomba ye-Refractive: 1.5216 (Isilinganiso)
Izimo zokugcina: 2-8 ° C
Ukunyibilika 1mHCl: 0.5MATCHEMICALBOOK20 ° C
Umbala: CLEAR, Angenambala
I-acidity coefficient (PKA): 2.13 (AT25 ° C)
Ifomu: I-Crystal noma i-CrystallinePowder
Umbala: Mhlophe
I-Optical (Optical): [α]/d, C = 5in5MHCl (Ayisebenzi)
Isixazululo samanzi: 2.9g/100ml (20ºc)

Ifomula yemolekyuli: C5H11NO2S

Ukusetshenziswa

I-crystalline powder emhlophe
Amhlophe, ama-platelet acwebile noma impushana enephunga eliwuphawu.I-g eyodwa incibilika ku-30 ml wamanzi.Incibilika kuma-asidi acwebileyo nasezixazululweni zama-alkali hydroxides.Incibilika kancane otshwaleni, futhi ayincibiliki ku-ether.Ayisebenzi nge-optically.I-pH yesisombululo esingu-1 ku-100 iphakathi kuka-5.6 no-6.1.Le nto ingase ilungiswe ngokwengezwa kwe-methanethiol ku-acrolein;ngokuguqulwa kwamakhemikhali kwe-methylthiopropionic aldehyde.

d,l-Methionine inephunga elibonakalayo.Kuyi-amino acid ebalulekile futhi isetshenziswa futhi njengesengezo sokudla kanye nesengezo sokudla.

Ukukhiqizwa kwamakhompiyutha aguquguqukayo ahlobene nokunambitheka kokudla okuvela ekucekeleni phansi kwe-Strecker kwe-DL-methionine.Ukwengezwa kwe-methionine ngamanani afanele kulokhu kudla kungase kulindeleke ukuthi kuthuthukise inani lamaprotheni.Ngokomnotho, i-DL-methionine ingakhethwa.I-nonpolar amino acid ebalulekile enezici zokuvikela ukucindezeleka kwe-oxidative.I-DL-Methionine ngezinye izikhathi inikezwa njengesithasiselo ezinjeni;isiza ukugcina izinja ekulimazeni utshani ngokunciphisa i-pH yomchamo.I-Methionine ivunyelwe njengesengezo sokudla kwezinkukhu eziphilayo ngaphansi kohlelo lwe-organic oluqinisekisiwe lwase-US.