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huahana

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

Waiwai Kemika:

ʻĀpana Molekala C5H11NO2S
Molar Mass 149.21
ʻO ka mānoanoa 1.34
Lae hehee 284°C (Dek.)(kumu)
Lae Boling 306.9±37.0 °C(Wānana ʻia)
Kahuli kiko'ī(α) -1~+1°(D/20℃)(c=8,HCl)
Helu JECFA 1424
Hiki i ka wai 2.9 g/100 mL (20 ºC)
Ka hoʻoheheʻe Hiki ke hoʻoheheʻe ʻia i loko o ka wai, hoʻoheheʻe ʻia ka waikawa a me ka alkali dilute, hiki ke hoʻoheheʻe ʻia i ka 95% waiʻona, hiki ʻole ke hoʻoheheʻe i ka etera
Ka nana aku Ka pauda kristal
kala kala Keʻokeʻo
ʻO Merck 14,5975
BRN 636185
pKa 2.13 (ma 25 ℃)
Kūlana Waihona 2-8°C
Paʻa Paʻa. ʻAʻole kūpono me nā mea oxidizing ikaika.
Pilikino Pilikino i ka malamalama
Hōʻike Hōʻike 1.5216 (manaʻo)
MDL MFCD00063096
Na Waiwai Kino a Kimia ʻO ke aniani keʻokeʻo a i ʻole ka pauka crystalline. ʻala kūikawā. Ua ʻono iki ka ʻono. He 281 degere (decomposition). 10% pH o ka hoʻonā wai 5.6-6.1. ʻAʻohe hoʻololi ʻike. Paʻa i ka wela a me ka ea. ʻAʻole paʻa i nā waikawa ikaika, hiki ke alakaʻi i ka demethylation. Hiki ke hoʻoheheʻe ʻia i ka wai (3.3g/100ml, 25 degere), e hoʻoheheʻe i ka waika a me ka hopena dilute. ʻAʻole hiki ke hoʻoheheʻe ʻia i ka ethanol, aneane hiki ʻole ke hoʻoheheʻe ʻia i ka ether
Hoʻohana Hoʻohana ʻia ma ke ʻano he biochemical reagent

Huahana Huahana

Huahana Huahana

Nā hōʻailona pōʻino Xi – Hoʻohaunaele
Nā Code Risk R33 - ʻO ka pōʻino o nā hopena kumulative
R36/37/38 – Hoʻonanea i ka maka, ka ʻōpū hanu a me ka ʻili.
Ka wehewehe palekana S24/25 – Hōʻalo i ka pili ʻana me ka ʻili a me nā maka.
S36 – E komo i nā lole pale kūpono.
S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino.
WGK Kelemānia 2
RTECS PD0457000
NUI FLUKA BRAND F 10-23
TSCA ʻAe
HS Code 29304090

 

Hoʻolauna

ʻO DL-Methionine kahi amino amino non-polar. ʻO kona mau waiwai he pauda crystalline keʻokeʻo, ʻaʻohe ʻala, ʻawaʻawa iki, hiki ke hoʻoheheʻe ʻia i ka wai.

 

Hiki ke hoʻomākaukau ʻia ka DL-Methionine e nā ʻano hana like ʻole. ʻO ke ʻano hana maʻamau ma o ka synthesis kemika. ʻO ke kikoʻī, hiki ke hana ʻia ka DL-methionine e ka hopena acylation o ka alanine a ukali ʻia e ka hopena hōʻemi.

 

ʻIke palekana: palekana ʻo DL-Methionine me ka hoʻohana maʻamau a me ka lawe haʻahaʻa. Hiki i ka ʻai nui ke hoʻoulu i kekahi mau hopena ʻaoʻao e like me ka nausea, ka luaʻi, a me ka maʻi maʻi. Pono e hoʻohana me ka akahele no kekahi mau pūʻulu o ka poʻe, e like me nā wahine hāpai, nā pēpē a me nā keiki liʻiliʻi, a me nā poʻe me nā allergies.


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