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                児云議な捐 MSDS 喘余と栽撹の圭隈 サプライヤ`

                L-メチオニン

                児云議な捐 MSDS 喘余と栽撹の圭隈 サプライヤ`
                L-メチオニン
                L-メチオニン 來|
                • 蛮c 284 °C (dec.)(lit.)
                • 曳傴高業 23.25 º (c=2, 6N HCl)
                • 経c 393.91<C (estimate)
                • 曳嶷(畜業) 1,34g/cm
                • 莫孵楕 1.5216 (estimate)
                • Ai惷 Store at RT.
                • 卑盾來1 M HCl: 0.5 M at 20 °C, clear, colorless
                • 磨盾x侈爺B脱盾祇協(Pka)2.13(at 25≧)
                • 翌 Solid
                • White
                • PH5-7 (10g/l, H2O, 20≧)
                • 高W試來 (optical activity)[α]20/D +23.7\0.5<, c = 5% in 5 M HCl
                • 邦卑盾業 Soluble
                • O寄簾РL (λmax)λ: 260 nm Amax: 0.40
                  λ: 280 nm Amax: 0.05
                • Merck 14,5975
                • BRN 1722294
                • 芦協來Stable. Incompatible with strong oxidizing agents.
                • CAS デ`タベ`ス63-68-3(CAS DataBase Reference)
                • NISTの晒W麗|秤峠oL-Methionine(63-68-3)
                • EPAの晒W麗|秤L-Methionine(63-68-3)
                セキュリティ秤
                MSDS Information
                L-メチオニン 喘余と栽撹の圭隈
                • 翌Q易弼, Y唱゛Y唱來圭鰈濮盆^肇頚挑
                • 協x云瞳は、肝の晒W塀で燕されるアミノ磨である。
                • 卑盾來邦100gに3g (0≧), 5.6g (30≧)卑盾。嗤C卑箪に音卑。磨, アルカリ卑匣に辛卑。邦にやや卑けやすく、エタノ`ルにOめて卑けにくく、ジエチルエ`テルにほとんど卑けない。c磨嗽は邦磨晒ナトリウム卑匣に卑ける。
                • 晒瞳の撹蛍喘余ヘアコンディショニング、討wコンディショニング
                • 盾蕎a
                • h苧Colorless or white lustrous plates, or a white crystalline powder. It has a slight, characteristic odor. It is soluble in water, in alkali solutions, and in dilute mineral acids. It is slightly soluble in alcohol and practically insoluble in ether.
                • 晒W議蒙來White crystalline powder
                • 晒W議蒙來Methionine occurs as a white or almost white, crystalline powder or colorless crystals.
                • 聞喘Essential aminoacid for human development. Hepatoprotectant; antidote (acetominophen poisoning); urinary acidifier.
                • 聞喘methionine is slows down and normalizes oil gland sebum production. Methionine is also used as a texturizer in cosmetic creams. It is an essential amino acid found in a number of proteins and obtained by means of fermentation.
                • {u圭隈Numerous methods have been described for manufacture of methionine, including hydrolysis of methionine amide )and 5-(bmethylmercaptoethyl)- hydantoin.
                • 協xChEBI: The L-enantiomer of methionine.
                • 匯違議なh苧Minute hexagonal plates from dilute alcohol.
                • 腎櫃繁の郡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.
                • 郡鬋廛蹈侫`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.
                • 宗慎ハザ`ドACUTE/CHRONIC HAZARDS: L-Methionine is dangerous when heated to decomposition; it emits dangerous and highly toxic fumes.
                • 諮栂jFlash point data for L-Methionine is not available, but L-Methionine is probably combustible.
                • 鮄胆uaMethionine is used in oral pharmaceutical formulations as a flavoring agent.It has been included in parenteral formulations as a pH controlling agent,and it has also been used experimentally as an antioxidant with antibodies.Methionine is also used therapeutically in oral tablets
                • 芦畠來プロファイルMildly toxic by ingestion and intraperitoneal routes. Human mutation data reported. An experimental teratogen. Experimental reproductive effects. An essential sulfur-containing amino acid. When heated to decomposition it emits very toxic fumes of NOx and SOx.
                • 芦畠來Methionine is used in oral pharmaceutical formulations. The pure form of methionine is mildly toxic by ingestion and by the IP route.
                  LD50 (rat, IP): 4.328 g/k
                  LD50 (rat, oral): 36 g/kg
                • AiMethionine is sensitive to light and should be stored in a cool, dark place.
                • 晒圭隈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.]
                • 音才栽來Methionine is incompatible with strong oxidizing agents.
                • ヨr(Regulatory Status)Included in the FDA Inactive Ingredients Database (oral tablets). Included in parenteral preparations (injection solutions; powders for reconstitution) licensed in the UK.
                L-メチオニンサプライヤ`
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