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                ChemicalBook >  製品カタログ >  生物化學工學 >  アミノ酸およびデリバティブ >  アミノ酸のα- >  L-アスパラギン酸

                L-アスパラギン酸

                L-アスパラギン酸 化學構造∮式
                56-84-8
                • CAS番號.56-84-8
                • 化學名:L-アスパラギン酸
                • 別名:L-アスパラギン酸;L-アミノこはく酸;(S)-アミノブタン二酸;アスパラギン酸;(+)-L-アスパラギン酸;(S)-アスパラギン酸;(S)-2-アミノこはく酸;(S)-2-アミノブタン二酸;(+)-アスパラギン酸;L-アスパルト酸;Lアスパラギン酸;(S)-アミノこはく酸;L‐アスパラギン酸;L‐アスパラギン酸 CRM6027‐A;アスパラギン酸, L-;L-アスパラギン酸標準品;アスパラギン酸, resDarch grade;L-アスパラギン酸 (JP17)
                • 英語⊙化學名:L-Aspartic acid
                • 英語別名:ASP;L-ASP;H-ASP-OH;L-Asp-OH;FEMA 3656;ASPARTATE;H-L-ASP-OH;Aspatofort;L-ASPARGINE;ASPARTIC(L-)
                • CBNumber:CB3141599
                • Molecular Formula:C4H7NO4
                • Formula Weight:133.1
                • MOL File:56-84-8.mol
                L-アスパラギン酸 物理性質
                • 融點  :>300 °C (dec.)(lit.)
                • 比旋光度  :25 º (c=8, 6N HCl)
                • 沸點  :245.59°C (rough estimate)
                • 比重(密度)  :1.66
                • 屈折率  :1.4540 (estimate)
                • FEMA  :3656 | L-ASPARTIC ACID
                • 貯蔵溫度  :Store at RT.
                • 溶解性 :H2O: 5 mg/mL
                • 外見  :powder
                • 酸解離■定數(Pka) :1.99(at 25℃)
                • 色 :White
                • PH :2.5-3.5 (4g/l, H2O, 20℃)
                • 光學活性 (optical activity) :[α]20/D +24.7±1°, c = 5% in 5 M HCl
                • 水溶解度  :5 g/L (25 ºC)
                • 極大︽吸収波長 (λmax) :λ: 260 nm Amax: 0.20
                  λ: 280 nm Amax: 0.10
                • Merck  :14,840
                • JECFA Number :1429
                • BRN  :1723530
                • 安定性: :Stable. Combustible. Incompatible with strong oxidising agents.
                • InChIKey :CKLJMWTZIZZHCS-REOHCLBHSA-N
                • CAS データベース :56-84-8(CAS DataBase Reference)
                • NISTの化學物╲質情報 :Aspartic acid(56-84-8)
                • EPAの化♀學物質情報 :L-Aspartic acid(56-84-8)
                安全性情報

                L-アスパラギン酸 MSDS


                L-Aminosuccinic acid

                L-Aspartic acid 化學特性,用途語,生産方法

                • 外観 白色の結晶性粉我會老死末
                • 定義 本品は、次の化學式で表されるアミノ酸である。
                • 溶解性 水に溶けにくく、エタノールにほとんど溶けない。
                • 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
                • 効能 アミノ酸補充薬
                • 特長 塩酸酸性溶液は右旋性、塩基性卐溶液は左旋性を示す。
                • 使用上の註意 不活性ガス封入
                • 説明 L-Aspartic acid is the L-form of the aspartic acid. It is one of the 20 amino acids that used in the protein synthesis. It is the non-essential amino acids for humans as it can be synthesized in vivo. It is important in the synthesis of other amino acids and some nucleotides, and is a metabolite in the citric acid and urea cycles. In animals, it may be used as a neurotransmitter. It can be chemically synthesize from the diethyl sodium phthalimidomalonate. Currently, almost all the aspartic acids are manufactured in China. Its application include being used as low calorie sweetener (as the part of the aspartame), scale and corrosion inhibitor, and in resins. One of its growing applications is for the manufacturing of biodegradable superabsorbent polymer, polyaspartic acid. It can also be used in fertilizer industry to improve water retention and nitrogen uptake.
                • 化學的特而且就是等一會而已性▓ Colorless crystals. Soluble in water; insoluble in alcohol and ether. Optically active. dl-aspartic acid.
                • 化學的特哼性 Aspartic acid (abbreviated as Asp or D) is an α-amino acid with the chemical formula HOOCCH(NH2 )CH2COOH. The carboxylate anion, salt, or ester of aspartic acid is known as aspartate. The Lisomer of aspartate is one of the 20 proteinogenic amino acids, i.e., the building blocks of proteins. Its codons are GAU and GAC. Aspartic acid is, together with glutamic acid, classified as an acidic amino acid with a pKa of 3.9, however in a peptide the pKa is highly dependent on the local environment. A pKa as high as 14 is not at all uncommon. Aspartate is pervasive in biosynthesis. As with all amino acids, the presence of acid protons depends on the residue's local chemical environment and the pH of the solution.
                • 化學的特性 Apartic acid is an aliphatic monoaminodicarboxylic acid (amino acid) and is a well-known constituent of protein. It has a slight acid taste
                • 天然物の起源 Dietary sources
                  Aspartic acid is not an essential amino acid, which means that it can be synthesized from central metabolic pathway intermediates in humans. Aspartic acid is found in :
                  Animal sources : luncheon meats, sausage meat, wild game
                  Vegetable sources: sprouting seeds, oat flakes, avocado,
                  asparagus , young sugarcane, and molasses from sugar beets.
                  Chemical synthesis
                  Racemic aspartic acid can be synthesized from diethyl sodium phthalimido malonate, (C6H4(CO)2NC(CO2Et)2).
                  The major disadvantage of the above technique is that equimolar amounts of each enantiomer are made. Using biotechnology it is now possible to use immobilized enzymes to create just one type of enantiomer owing to their stereo specificity. Aspartic acid is made synthetically using ammonium fumarate and aspartase from E.coli, E.coli usually breaks down the aspartic acid as a nitrogen source but using excess amounts of ammonium fumarate a reversal of the enzyme's job is possible, and so aspartic acid is made to very high yields, 98.7 mM from 1 M.
                • 來歴 Aspartic acid was first discovered in 1827 by Plisson, derived from asparagine, which had been isolated from asparagus juice in 1806, by boiling with a base.
                • 使用 L-aspartic acid is used as a dietary supplement, it can be blended with minerals to make compounds like potassium aspartate, copper aspartate, manganese aspartate, magnesium aspartate, zinc aspartate and more. Increasing the absorption, and hence utilization potentials, of these minerals via the addition of aspartate induces certain health benefits. Many athletes use L-aspartic acid-based mineral supplements orally to enhance their performance capacities. Aspartic acid and glutamic acid play important roles as general acids in enzyme active centers, as well as in maintaining the solubility and ionic character of proteins. It can help promote a robust metabolism, and is sometimes used to treat fatigue and depression. Aspartic acid is used as a component of parenteral and enteral nutrition. In pharmaceutical agents aspartic acid is used as an ammoniac detoxicating agent, hepar function accelerator and fatigue refresher.
                • 使用 l-aspartic acid is an amino acid used as a skin-conditioning agent.
                • 定義 ChEBI: The L-enantiomer of aspartic acid.
                • Aroma threshold values Detection: 300 ppb
                • 危険性 Low toxicity.
                • 生物活性 Endogenous NMDA receptor agonist.
                • 安全性プロファイル Low toxicity by intraperitoneal route. When heated to decomposition emits toxic fumes of NOx.
                • Chemical Synthesis Aspartate is non - essential in mammals, being produced from oxaloacetate by transamination. It can also be generated from ornithine and citrulline in the urea cycle. In plants and microorganisms, aspartate is the precursor to several amino acids, including four that are essential for humans: methionine, threonine, isoleucine, and lysine. The conversion of aspartate to these other amino acids begins with reduction of aspartate to its "semi aldehyde," O2CCH(NH2)CH2CHO. Asparagine is derived from aspartate via trans amidation :
                  -O2CCH(NH2)CH2CO2 - + G C (O)NH3+ O2CCH(NH2)CH2CONH3+ + GC(O)O
                  (where GC(O)NH2 and GC(O)OH are glutamine and glutamic acid, respectively).
                • Chemical Synthesis Enzymatically, aspartic acid is reversibly synthesized by a transamination reaction between oxaloacetic acid and glutamic acid in the presence of pyridoxal phosphate.
                • Forms and nomenclature There are two forms or enantiomers of aspartic acid. The name "aspartic acid" can refer to either enantiomer or a mixture of two. Of these two forms, only one, "L - aspartic acid", is directly incorporated into proteins. The biological roles of its counterpart, "Daspartic acid" are more limited. Where enzymatic synthesis will produce one or the other, most chemical syntheses will produce both forms, "DL-aspartic acid," known as a racemic mixture.
                • Other biochemical roles Aspartate is also a metabolite in the urea cycle and participates in gluconeogenesis. It carries reducing equivalents in the malateaspartate shuttle, which utilizes the ready inter conversion of aspartate and oxaloacetate, which is the oxidized (dehydrogenated) derivative of malic acid. Aspartate donates one nitrogen atom in the biosynthesis of inosine, the precursor to the purine bases. In addition, aspartic acid acts as hydrogen acceptor in a chain of ATP synthase.
                L-アスパラギン酸 上流と下流の製品情報
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                L-アスパラギン酸 生産企業
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                56-84-8, L-アスパラギン酸 キーワード:
                • 56-84-8
                • Erlotinib-d7 HCl
                • (S)-(+)-Aminosuccinic acid (S)-Aminobutanedioic acid (S)-Aminosuccinic Acid H-Asp-OH L-Asparaginic Acid L(+)-Aspartic acid
                • L-Aspartic acid, Low metals content
                • ASP
                • ASPARTIC(L-)
                • ASPARTIC ACID
                • ASPARTIC ACID, L-
                • H-ASP-OH
                • FEMA 3656
                • H-L-ASP-OH
                • L-ALPHA-AMINOSUCCINIC ACID
                • L-AMINOSUCCINIC ACID
                • L-ASPARAGINIC ACID
                • L-ASP
                • L-ASPARGINE
                • (+)-L-ASPARTIC ACID
                • L-(+)-ASPARTIC ACID
                • L-ASPARTIC ACID
                • L-ASPARATATE
                • L-2-AMINOBUTANEDIOIC ACID
                • ACIDUM ASPARTICUM
                • (S)-2-AMINOSUCCINIC ACID
                • (S)-(+)-AMINOSUCCINIC ACID
                • (S)-AMINOSUCCINIC ACID
                • (S)-AMINOBUTANEDIOIC ACID
                • (S)-(+)-ASPARTIC ACID
                • (2S)-Aspartic acid
                • ASPARTATE
                • Asparaginsure
                • aminobutanedioic acid
                • L-アスパラギン酸
                • L-アミノこはく酸
                • (S)-アミノブタン二酸
                • アスパラギン酸
                • (+)-L-アスパラギン酸
                • (S)-アスパラギン酸
                • (S)-2-アミノこはく酸
                • (S)-2-アミノブタン二酸
                • (+)-アスパラギン酸
                • L-アスパルト酸
                • Lアスパラギン酸
                • (S)-アミノこはく酸
                • L‐アスパラギン酸
                • L‐アスパラギン酸 CRM6027‐A
                • アスパラギン酸, L-
                • L-アスパラギン酸標準品
                • アスパラギン酸, resDarch grade
                • L-アスパラギン酸 (JP17)
                • α-アミノ酸
                • アミノ酸
                • 光學分割
                • 生化學
                • 塩基の光學分割剤
                • 有機單單是怒吼聲就已經讓他們感覺到一絲驚懼了合成化學
                • 代謝産物