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DL-Methionine (CAS# 59-51-8) Umfanekiso okhoyo
  • DL-Methionine (CAS# 59-51-8) 1

DL-Methionine (CAS# 59-51-8)

Ipropati yeMichiza:

Ifomula yeemolekyuli I-C5H11NO2S
IMisa yeMolar 149.21
Ukuxinana 1.34
Indawo yokunyibilika 284°C (dec.)(lit.)
Indawo yeBoling 306.9±37.0 °C(Kuqikelelwe)
Ujikelezo oluthile(α) -1～+1°(D/20℃)(c=8,HCl)
Inombolo yeJECFA 1424
Ukunyibilika kwamanzi 2.9 g/100 mL (20 ºC)
Ukunyibilika Inyibilika emanzini, i-asidi enyibilikayo kunye ne-alkali enyibilikayo, inyibilika kancinane kwi-95% yotywala, ayinyibiliki kwi-ether
Imbonakalo Umgubo weCrystalline
Umbala Mhlophe
Merck 14,5975
I-BRN 636185
pKa 2.13(nge-25℃)
Imeko yoGcino 2-8°C
Uzinzo Izinzile. Ayihambelani ne-oxidising agents eyomeleleyo.
Inovakalelo Inovakalelo ekukhanyeni
Refractive Index 1.5216 (uqikelelo)
MDL MFCD00063096
IiPropati zoMzimba kunye nezeMichiza Ikristale emhlophe emhlophe okanye i-crystalline powder. Ivumba elikhethekileyo. Incasa yayiswiti kancinci. Indawo yokunyibilika i-281 degrees (ukubola). I-10% pH yesisombululo samanzi 5.6-6.1. Akukho kujikelezwa kwamehlo. Izinzile kubushushu kunye nomoya. Ukungazinzi kwii-asidi ezinamandla, kunokukhokelela kwi-demethylation. I-soluble emanzini (3.3g / 100ml, i-25 degrees), i-asidi ehlanjululwe kunye ne-dilute solution. Inganyibiliki kakhulu kwi-ethanol, phantse ayinyibiliki kwi-ether
Sebenzisa Isetyenziswa njenge-reagent ye-Biochemical

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iimpawu ezinobungozi Xi – Irritant
Iikhowudi zoMngcipheko R33 – Ingozi yeziphumo ezongezelekayo
R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu.
Inkcazelo yoKhuseleko S24/25-Kuphephe ukudibana nolusu namehlo.
S36 – Nxiba iimpahla ezifanelekileyo ezikhuselayo.
S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango.
WGK eJamani 2
RTECS PD0457000
FLUKA BRAND F IIKHOWUDI 10-23
I-TSCA Ewe
Ikhowudi ye-HS 29304090

 

Intshayelelo

I-DL-Methionine i-amino acid engekho-polar. Iipropathi zayo zingumgubo omhlophe wekristale, ongenavumba, ukrakra kancinci, unyibilika emanzini.

 

I-DL-Methionine inokulungiswa ngeendlela ezahlukeneyo. Eyona ndlela isetyenziswa ngokuqhelekileyo yikhemikhali synthesis. Ngokukodwa, i-DL-methionine inokuveliswa ngokusabela kwe-acylation ye-alanine elandelwa kukusabela kokunciphisa.

 

Ulwazi loKhuseleko: I-DL-Methionine ikhuselekile ngokusetyenziswa okuqhelekileyo kunye nokungena okuphakathi. Ukutya kakhulu kunokubangela ezinye iziphumo ebezingalindelekanga ezifana nesicaphucaphu, ukuhlanza, kunye norhudo. Ifanele isetyenziswe ngononophelo kumaqela athile abantu, njengabasetyhini abakhulelweyo, iintsana nabantwana abancinci, kunye nabantu abane-allergies.

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