Umgangatho ophezulu we-Dl-Methionine CAS 59-51-8 powder

inkcazelo emfutshane:

Indawo yokunyibilika:284 °C (dec.)(lit.)

ialpha:-1～+1°(D/20℃)(c=8,HCl)

Indawo yokubilisa:306.9±37.0 °C(Kuqikelelwe)

Ubuninzi:1.34

Amanye Amagama:R, S) -2-Amino-4-methylsulfanyl-butyricacid;(RS) -2-Amino-3-methylthiobutanαure;Metion;Neston;iPedamete;iPetamete;eThiomedon;Urimete

Ukupakishwa:I-1g-25kg / ibhegi / iibhotile, ngokweemfuno zabathengi

Iimpawu:Zhanshun

Ixesha lokuzisa:Siza kuthumela iimpahla xa sifumene imali

Express:Iindlela ezikhawulezayo: EDEX, DHL, UPS, TNT, njl ngolwandle okanye ngoqoqosho lomoya

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Ulwazi olusisiseko

Indawo yokunyibilika: 284 ° C (dec.) (Lit.)
Ukukhanya okuthe ngqo: -1 ～+1 ° (d/20 ℃) (C = 8, HCL)
Indawo yokubilisa: 306.9 ± 37.0 ° C (Qaphela)
Ubuninzi: 1.34FEMA3301 |D, L-Methionine
Isalathiso se-refractive: 1.5216 (Uqikelelo)
Iimeko zokugcina: 2-8 ° C
Ukunyibilika 1mHCl: 0.5MATCHEMICALBOOK20 ° C
Umbala: CACILE, Angenambala
I-Acidity coefficient (PKA): 2.13 (AT25 ° C)
Ifom: ICrystal okanye iCrystallinePowder
Umbala: Mhlophe
I-Optical (Optical): [α]/d, C = 5in5MHCl (Engasebenziyo)
Isinyibiliko samanzi: 2.9g/100ml (20ºc)

Ifomula yemolekyuli: C5H11NO2S

Ukusetyenziswa

Umgubo omhlophe wekristale
Imhlophe, iiplatelets ezikristale okanye umgubo onevumba elibonakalayo.I-g enye inyibilika malunga ne-30 mL yamanzi.Iyanyibilika kwiiasidi ezixubileyo nakwizisombululo zealkali hydroxides.Inyibilika kancinane etywaleni, kwaye ayinyibiliki kwi-ether.Ayisebenzi ngokubonakalayo.I-pH ye-1 kwisisombululo se-100 iphakathi kwe-5.6 kunye ne-6.1.Le nto inokuthi ilungiswe ngokongezwa kwe-methanethiol kwi-acrolein;ngokuguqulwa kweekhemikhali ze-methylthiopropionic aldehyde.

d,l-Methionine inevumba elibonakalayo.Yi-amino acid ebalulekileyo kwaye ikwasetyenziswa njengesakhamzimba kunye nesongezo sokutya.

Ukuveliswa kweekhompawundi eziguquguqukayo ezinxulumene ne-flavour yokutya ukusuka kwi-Strecker degradation ye-DL-methionine.Ukongezwa kwe-methionine kwizixa ezifanelekileyo koku kutya kunokulindeleka ukuphucula ixabiso leprotheyini.Ngokoqoqosho, i-DL-methionine ingakhethwa.I-amino acid eyimfuneko ye-nonpolar eneempawu zokukhusela uxinzelelo lwe-oxidative.DL-Methionine ngamanye amaxesha inikwa njengesongezelelo kwizinja;inceda izinja ezonakalisa ingca ngokunciphisa i-pH yomchamo.I-Methionine ivumelekile njengesongezelelo kwisondlo senkukhu ephilayo phantsi kweprogram eqinisekisiweyo yase-US.