Zoo siab Dl-Methionine CAS 59-51-8 hmoov

piav qhia luv luv:

Melting point:284 ° C (hnub) (lit.)

alpha:-1 ~ + 1 ° (D / 20 ℃) (c = 8, HCl)

Boiling point:306.9 ± 37.0 ° C (Tshaj tawm)

ceev:1.34 ib

Lwm Lub Npe:R,S)-2-Amino-4-methylsulfanyl-butyricacid;(RS)-2-Amino-3-methylthiobutansαure;Metione;Neston;Pedameth;Petameth;Thiomedon;Urimeth

Ntim:1g-25kg / hnab / lub raj mis, raws li cov neeg siv khoom xav tau

Hom Tshuaj:Zhanshun

Lub sij hawm xa tuaj:Peb yuav xa cov khoom thaum peb tau txais cov nyiaj

Qhia:Txoj kev nrawm dua: EDEX, DHL, UPS, TNT, thiab lwm yam los ntawm hiav txwv lossis los ntawm huab cua kev lag luam

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Product Detail

Khoom cim npe

Cov ntaub ntawv yooj yim

Melting point: 284 ° C (dec.) (Lit.)
Lub teeb tshwj xeeb: -1 ～ + 1 ° (d / 20 ℃) (C = 8, HCL)
Kub taw tes: 306.9 ± 37.0 ° C (Predict)
Ceev: 1.34FEMA3301 |D, L-Methionine
Refractive Index: 1.5216 (Kev kwv yees)
Cia tej yam kev mob: 2-8 ° C
Solubility 1mHCl: 0.5MATCHEMICALBOOK 20 ° C
Xim: CLEAR, Tsis muaj xim
Acidity coefficient (PKA): 2.13 (AT25 ° C)
Daim ntawv: Crystal los yog CrystallinePowder
Xim: Dawb
Optical (Optical): [α]/d, C = 5in5MHCl (Inactive)
Kev daws dej: 2.9g / 100ml (20ºc)

Cov mis mos molecular: C5H11NO2S

Kev siv

Dawb crystalline hmoov
Dawb, crystalline platelets los yog hmoov muaj cov yam ntxwv tsw.Ib g dissolves nyob rau hauv txog 30 mL dej.Nws yog soluble hauv dilute acids thiab hauv kev daws ntawm alkali hydroxides.Nws yog me ntsis soluble hauv cawv, thiab xyaum insoluble hauv ether.Nws yog optically inactive.Qhov pH ntawm 1 hauv 100 daws yog nyob nruab nrab ntawm 5.6 thiab 6.1.Cov tshuaj no tuaj yeem npaj los ntawm kev ntxiv methanethiol rau acrolein;los ntawm tshuaj hloov pauv ntawm methylthiopropionic aldehyde.

d, l-Methionine muaj cov yam ntxwv tsw.Nws yog ib qho tseem ceeb amino acid thiab tseem siv los ua cov khoom noj thiab kev noj haus ntxiv.

Kev tsim cov tshuaj tsis haum tshuaj muaj feem xyuam rau cov khoom noj ntawm cov khoom noj los ntawm Strecker degradation ntawm DL-methionine.Ntxiv cov methionine hauv qhov tsim nyog rau cov khoom noj no yuav xav tias yuav txhim kho tus nqi protein.Kev lag luam, DL-methionine yuav zoo dua.Ib qho tseem ceeb nonpolar amino acid nrog oxidative kev nyuaj siab tiv thaiv cov khoom.DL-Methionine qee zaum muab ntxiv rau cov dev;nws pab kom dev los ntawm kev puas tsuaj nyom los ntawm kev txo cov pH ntawm cov zis.Methionine tau tso cai los ua ib qho ntxiv rau cov nqaij qaib pub rau hauv US certified organic program.