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| CAS番号. |
63-68-3 |
| 化学名: |
L-メチオニン |
| 别名: |
L-メチオニン;(S)-4-(メチルチオ)-2-アミノ酪酸;(S)-2-アミノ-4-(メチルチオ)ブタン酸;(-)-メチオニン;(S)-メチオニン;(-)-L-メチオニン;L-メチオニンZ;メチオニン;Lメチオニン |
| 英語化学名: |
L-Methionine |
| 英語别名: |
MET;L-MET;lactet;L-Met-OH;H-MET-OH;Liquimeth;NSC 22946;Acimethin;Cymethion;METHIONINE |
| CBNumber: |
CB9208759 |
| 分子式: |
C5H11NO2S |
| 分子量: |
149.21 |
| MOL File: |
63-68-3.mol |
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L-メチオニン
物理性質 |
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比旋光度 : |
23.25 º (c=2, 6N HCl) |
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溶解性: |
1 M HCl: 0.5 M at 20 °C, clear, colorless
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PH: |
5-7 (10g/l, H2O, 20℃) |
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安定性：: |
Stable. Incompatible with strong oxidizing agents. |
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安全性情報
L-メチオニン
化学特性,用途語,生産方法
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化学的特性
White crystalline powder |
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使用
Essential aminoacid for human development. Hepatoprotectant; antidote (acetominophen poisoning); urinary acidifier. |
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使用
An essential amino acid |
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定義
ChEBI: The L-enantiomer of methionine. |
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一般的な説明
Minute hexagonal plates from dilute alcohol. |
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空気と水の反応
Reacts with water, steam, and/or acids to produce toxic and flammable vapors of hydrogen sulfide . Water soluble . pH of 1% aqueous solution is 5.6-6.0. |
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反応プロフィール
An organosulfide and amine derivative, carboxylic acid. Look at Reactive Groups 20 (organosulfides), 7 (amines), and 3 (carboxylic acids) may give indications about reactive tendencies. L-Methionine is an amino acid essential in human nutrition. |
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健康ハザード
ACUTE/CHRONIC HAZARDS: L-Methionine is dangerous when heated to decomposition; it emits dangerous and highly toxic fumes. |
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火災危険
Flash point data for L-Methionine is not available, but L-Methionine is probably combustible. |
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純化方法
Crystallise L-methionine from aqueous EtOH. Also purify it by dissolving ~0.5g of amino acid in ~10mL of hot H2O, filtering, adjusting the pH to 5.8 with 5N HCl, collecting the solid after addition of ~20mL of EtOH. It is recrystallised by dissolving in H2O and adding EtOH. It sublimes at 197-208o/0.3mm with 99.8% recovery and unracemised [Gross & Gradsky J Am Chem Soc 77 1678 1955]. [Milne & Peng J Am Chem Soc 79 647 1957, Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 pp 2125-2152 1961, Beilstein 4 IV 3189.] |
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定義
本品は、次の化学式で表されるアミノ酸である。 |
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化粧品の成分用途
ヘアコンディショニング剤、皮膚コンディショニング剤 |
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L-メチオニン
生産企業 Global( 469)Suppliers |
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63-68-3
L-METHIONINE (13C5,D8,15N)
L-METHIONINE (1,2,3,4-13C4
METHYL-13CH3)
L-Met-OH
L-Methionine, Animal-Free
L-METHIONINE, REAGENT GRADE, >=98% (
L-MethionineUSP,
98.5-101.5% (Titration: anhydrous basis)
L(-)-Methionin
L-2-Amino-3-methylthiobuttersαure
lactet
L-alpha-Amino-gamma-methylmercaptobutyric acid
l-alpha-amino-gamma-methylmercaptobutyricacid
l-alpha-amino-gamma-methylthiobutyricacid
L-gamma-Methylthio-alpha-aminobutyric acid
l-gamma-methylthio-alpha-aminobutyricacid
L-homocysteine,S-methyl-
Liquimeth
l-methionin
L-α-amino-γ-methylthiobutyricacid
neo-methidin
s-methyl-l-homocystein
γ-methylthio-α-aminobutyricacid
2-AMINO-4-METHYLMERCAPTOBUTYRIC ACID
METHIONINE, L-
METHIONINE
MET
L-BANTHIONINE
L-LOBAMINE
L-MET
(+)-L-METHIONINE
L-メチオニン
(S)-4-(メチルチオ)-2-アミノ酪酸
(S)-2-アミノ-4-(メチルチオ)ブタン酸
(-)-メチオニン
(S)-メチオニン
(-)-L-メチオニン
L-メチオニンZ
メチオニン
Lメチオニン
α-アミノ酸
アミノ酸
生化学
代謝産物
解毒薬
植物成長調整剤
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