DL-Methionine（CAS # 59-51-8)

Āhuatanga matū:

Tātai rāpoi	C5H11NO2S
Molar Mass	149.21
Kiato	1.34
Te Whakarewa	284°C (dec.)(marama)
Piro Pouri	306.9±37.0 °C(I Matapaetia)
Hurihuri motuhake(α)	-1～+1°(D/20℃)(c=8,HCl)
Nama JECFA	1424
Wairewa wai	2.9 g/100 mL (20 ºC)
Wairewa	Wairewa i roto i te wai, waimeha waikawa me waimeha kawakore, paku wairewa i roto i te 95% waipiro, korere i roto i te etera
Te ahua	Te paura tioata
Tae	Mā
Merck	14,5975
BRN	636185
pKa	2.13(i te 25 ℃)
Tikanga Rokiroki	2-8°C
Te pumau	Eu ana. He hotokore ki nga matū whakahaora kaha.
Tairongo	Te tairongo ki te marama
Taurangi Refactive	1.5216 (whakatau tata)
MDL	MCD00063096
Āhuatanga ā-tinana, matū hoki	Karaihe kirikiri ma, paura tioata ranei. Te kakara motuhake. He paku reka te reka. Ira whakarewa 281 nga nekehanga (decomposition). 10% pH o te wairewa wai 5.6-6.1. Karekau he hurihanga whatu. Pumau ki te wera me te hau. Kore iu ki te waikawa kaha, ka arahi ki te demethylation. Wairewa i roto i te wai (3.3g/100ml,25 nga nekehanga), waimeha waikawa me te wairewa wairewa. Tino kore e rewa i roto i te waihano, tata kore e rewa i roto i te etera
Whakamahi	Ka whakamahia hei reagent biochemical

Tukuna he imeera ki a matou

Taipitopito Hua

Tohu Hua

Nga Tohu Whakamate	Xi – Irritant
Waehere Morearea	R33 – Te kino o nga paanga whakahiato R36/37/38 – He whakapataritari ki nga kanohi, te punaha manawa me te kiri.
Whakaahuatanga Haumaru	S24/25 – A ape i te pa ki te kiri me nga kanohi. S36 – Mau kakahu whakamarumaru tika. S26 – Mena ka pa ki nga kanohi, horoi tonu ki te nui o te wai me te rapu tohutohu hauora.
WGK Tiamana	2
RTECS	PD0457000
FLUKA BRAND F CODES	10-23
TSCA	Ae
Waehere HS	29304090

Kupu Whakataki

Ko te DL-Methionine he waikawa amino kore-polar. Ko ona ahuatanga he paura tioata ma, he kakara, he paku kawa, he memeha ki te wai.

Ka taea te whakarite i te DL-Methionine ma te maha o nga tikanga. Ko te tikanga e whakamahia nuitia ana ma te whakahiato matū. Ko te tikanga, ka taea te hanga DL-methionine e te tauhohenga acylation o te alanine whai muri i te tauhohenga whakaheke.

Mōhiohio Haumaru: He haumaru te DL-Methionine me te whakamahi noa me te whakaurunga ngawari. Ko te nui o te kai ka pa mai etahi o nga paanga kino penei i te nausea, te ruaki, me te korere. Me whakamahi ma te tupato mo etahi roopu tangata, penei i nga wahine hapu, nga kohungahunga me nga tamariki nohinohi, me nga tangata whai mate mate mate.

Tōmua: Tetrapropyl ammonium chloride（CAS# 5810-42-4)

Panuku: D-Glutamine（CAS # 5959-95-5)

Tuhia to korero ki konei ka tukuna mai ki a matou