l alanyl l glutamine

L-Alanyl-L-glutamine (Ala-Gln), a dipeptide composed of alanine and Gln, is an alternative supplement to L-glutamine in the production of biopharmaceuticals with better solubility and stability than glutamine (Gln).

L-Ascorbic acid (Vitamin C) is a natural product that is a potent reducing agent and antioxidant. L-Ascorbic acid functions in fighting bacterial infections, in detoxifying reactions, and in the formation of collagen. L-Ascorbic acid is used in the treatment of scurvy.

L-Glutamic acid monosodium salt (MSG) (Monosodium glutamate) is an activator of mGlu1 receptor.

L-Theanine is a relaxing and nondietary amino acid found pretty much exclusively in teas from Camellia sinensis and is known to promote relaxation without sedation.

Myristoyl-L-carnitine chloride (L-Myristoylcarnitine chloride) is one of the body's metabolites implicated in inherited metabolic disorders.Tetradecanoylcarnitine is a potential marker for the study of diabetes mellitus and autoimmune hepatitis.

A branched-chain essential amino acid that has stimulant activity. It promotes muscle growth and tissue repair. It is a precursor in the penicillin biosynthetic pathway.

L-(+)-Arabinose selectively inhibits intestinal sucrase activity in a non-competitive manner, inhibiting glucose elevation caused by sucrose intake.

L-Phenylalanine (3-Phenyl-L-alanine) is an essential amino acid and the precursor of the amino acid tyrosine, acts as an antagonist at α2δ calcium channels.

L-Tryptophan (Tryptophane), an essential amino acid, is necessary for normal growth in infants and for nitrogen balance in adults. It is a precursor of SEROTONIN (hence its use as an antidepressant and sleep aid) and of INDOLE ALKALOIDS in plants. It can be a precursor to NIACIN, although inefficiently in mammals.

L-(+)-Abrine (L-N-Methyltryptophan) is a toxic protein found in the jequirity seed.,can be used as a biomarker for abrin exposure.

L-Aspartic aicd sodium (Sodium L-aspartate) is an amino acid, a precursor active molecule for colon-specific active molecule delivery, that promotes Na+ efflux from rat forebrain membrane vesicles.

L-Cysteine (L-(+)-Cysteine) is a non-essential sulfur-containing amino acid in humans. L-Cysteine is important for protein synthesis, detoxification, and diverse metabolic functions. Found in beta-keratin, the main protein in nails, skin, and hair, L-Cysteine is important in collagen production, as well as skin elasticity and texture. Also required in the manufacture of amino acid taurine, L-Cysteine is a component of the antioxidant glutathione, and plays a role in the metabolism of essential biochemicals such as coenzyme A, heparin, and biotin.

L-Ascorbic acid 2-phosphate trisodium (Sodium ascorbyl phosphate) is used in biocatalytic dephosphorylation for electric power generation and electrochemical detection assays.

Nepsilon-Acetyl-L-lysine is a derivative of the lysine.

L-Isoleucine (Ile) is an essential branched-chain aliphatic amino acid found in many proteins. It is an isomer of LEUCINE. It is important in hemoglobin synthesis and regulation of blood sugar and energy levels.

L-Asparagine (Asparamide) is a non-essential amino acid that is involved in the metabolic control of cell functions in nerve and brain tissue. It is biosynthesized from ASPARTIC ACID and AMMONIA by asparagine synthetase.

N-Acetyl-L-tyrosine (Ac-Tyr-OH) is a side chain reaction of tyrosine. It converts to tyrosine and then can be used in neurotransmitter treatment as a precursor of cathecholamine.

L-Hyoscyamine sulfate (Levsin Sulfate) is the sulfate salt of a belladonna alkaloid derivative and the levorotatory form of racemic atropine isolated from the plants Hyoscyamus niger or Atropa belladonna, which exhibits anticholinergic activity. Hyoscyamine functions as a non-selective, competitive antagonist of muscarinic receptors, thereby inhibiting the parasympathetic activities of acetylcholine on the salivary, bronchial, and sweat glands, as well as the eye, heart, bladder, and gastrointestinal tract. These inhibitory effects cause a decrease in saliva, bronchial mucus, gastric juices, and sweat. Furthermore, its inhibitory action on smooth muscle prevents bladder contraction and decreases gastrointestinal motility.

L-Threonine (threonine) is an essential amino acid in humans，an important amino acid for the nervous system,L-Threonine also plays an important role in porphyrin and fat metabolism and prevents fat buildup in the liver. Useful with intestinal disorders and indigestion, threonine has also been used to alleviate anxiety and mild depression.

L-Cystine (Cystine Acid) is not considered one of the 20 amino acids, L-Cystine (Cystine Acid) is a sulfur-containing derivative obtained from oxidation of cysteine amino acid thiol side chains. It functions as an antioxidant and protects tissues against radiation and pollution, slowing the aging process. It also aids protein synthesis. L-Cystine (Cystine Acid) is abundant in many proteins of skeletal tissues and skin, and found in insulin and digestive enzymes chromotrypsinogen A, papain, and trypsinogen.

L-Glutamic acid (Glutaminol) acts as an excitatory transmitter, shows a direct activating effect on the release of DA from dopaminergic terminals.

L-Glutamine (L-Glutamic acid 5-amide) , a non-essential amino acid, is synthesized from glutamic acid and ammonia.

α-L-Rhamnose monohydrate (6-deoxy-L-mannose monohydrate) is a component of bacterial polysaccharides where it plays an important role in pathogenicity.

L-Serine (serine) is a non-essential amino acid in humans, L-Serine is present and functionally important in many proteins.L-Serine is also found at the active site of the serine protease enzyme class that includes trypsin and chymotrypsin.

L-aspartic acid potasium salt（VX-548） is an amino acid widely found in plants and animals.L-aspartic acid potasium salt drives the production of nitrogen oxides, which promotes phagocytosis and contributes to fish survival.L-aspartic acid potasium salt may stimulate antibiotics. The stimulatory effect may be related to precursors involved in aspartic acid-4-semialdehyde biosynthesis.

L-Cysteine hydrochloride hydrate (L-Cysteine hydrochloride monohydrate) is a conditionally essential amino acid, which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S), taurine and glutathione. L-Cysteine hydrochloride hydrate suppresses ghrelin and reduces appetite in rodents and humans.

L-Tartaric acid ((2R,3R)-(+)-Tartaric acid) occurs naturally in many plants, particularly grapes and tamarinds, and is one of the main acids found in wine. It is used as an antioxidant. Salts of tartaric acid are known as tartrates. L-Tartaric acid is a muscle toxin, which works by inhibiting the production of malic acid, and in high doses causes paralysis and death.

L-(R,S)-Tetrahydropalmatine (Rotundine) is extracted from Corydalis yanhusuo W. T. Wang.

Methyl L-pyroglutamate (L-Pyroglutamic acid methyl ester) shows anti-inflammatory activity. Methyl L-pyroglutamate is isolated from Portulaca oleracea L..

L-Citronellol ((S)-(-)-beta-Citronellol) is a small molecule compound isolated from geranium with antifungal activity, affecting fungal membranes.L-Citronellol acts synergistically with amphotericin B against Candida yeast.

L-2-Phosphoglyceric acid (L-2-Phosphoglyceric acid disodium salt) is a glyceric acid which serves as the substrate in the ninth step of glycolysis. It is catalyzed by enolase into phosphoenolpyruvate (PEP), the penultimate step in the conversion of glucose to pyruvate.

Ellagic acid 3-O-α-L-rhamnopyranoside is a natural product found in the tuberous roots of Potentilla anserina.

L-Sophoridine (Matridin-15-one) , a natural product obtained from medicinal plants, which has a variety of pharmacological effects, including anti-Y effects, and selectively induces apoptotic cell death in a variety of human Y cells in vitro and in vivo; however, its mechanism of action needs to be further elaborated.

L-Cysteine S-sulfate (S-Sulfo-L-cysteine) is an effective N-methyl-d-aspartate (NMDA) glutamatergic receptors agonist. L-Cysteine S-sulfate is the substrate for cystine lyase [1].

L-Galactose (Galactose, L-) is a natural product that is widely found in plants and animals. L-Galactose has been shown to be a key intermediate in the molecular pathway for the conversion of D-glucose to oxalic acid in Pistia stratiotes.L-Galactose has been shown to be a key intermediate in the molecular pathway for the conversion of D-glucose to oxalic acid.

L-Clausenamide is an alkaloid extracted from the leaves of the yellow bark (Clausena lansium (Lour) skeels) and can be used to improve cognitive function. L-Clausenamide inhibits beta-amyloid (Aβ) toxicity and prevents the formation of neurofibrillary tangles by inhibiting tau phosphorylation. L-Clausenamide has neuroprotective activity and can be used to modulate stimuli triggered by Aβ25-35. L-Clausenamide can be used to study neurological disorders like Alzheimer's disease.

(25R)-3β,17α-dihydroxy-5α- spirostan-6-one3-O-α-L- rhamnopyranosyl-(1→2)-β- D-glucopyranoside is a natural product isolated from the bulbs of Lilium brownii var. viridulum.

L-(-)-Mannose ((2R,3R,4S,5S)-2,3,4,5,6-pentahydroxyhexanal) is a naturally occurring non-reducing sugar commonly used as a food additive.

1. L-Arginine (L-Arg) exhibits anti-atherosclerotic effect. 2. L-Arginine and soy enriched diet are effective in prevention of osteoporosis associated with diabetes mellitus. 3. Exogenous L-Arginine could enhance neonate lymphocyte proliferation through an interleukin-2-independent pathway. 4. A combination of oral L-citrulline and L-Arginine effectively and rapidly augments NO-dependent responses at the acute stage.

L-DOPA (Levodopa) is an amino acid precursor of dopamine with antiparkinsonian properties. Levodopa is a prodrug that is converted to dopamine by DOPA decarboxylase and can cross the blood-brain barrier. When in the brain, levodopa is decarboxylated to dopamine and stimulates the dopaminergic receptors, thereby compensating for the depleted supply of endogenous dopamine seen in Parkinson's disease. To assure that adequate concentrations of levodopa reach the central nervous system, it is administered with carbidopa, a decarboxylase inhibitor that does not cross the blood-brain barrier, thereby diminishing the decarboxylation and inactivation of levodopa in peripheral tissues and increasing the delivery of dopamine to the CNS.

S-(5'-Adenosyl)-L-methionine tosylate (SAMe) is a ubiquitous methyl donor involved in a wide variety of biological reactions, including those mediated by DNA and protein methyltransferases [1]. S-(5'-Adenosyl)-L-methionine tosylate (SAMe) is a stable salt of SAM that is included in nutritional supplements for oral use [2]. S-(5'-Adenosyl)-L-methionine tosylate (SAMe) reportedly ameliorates depression, pain associated with osteoarthritis and fibromyalgia, and liver toxicity [3].

S-Adenosyl-L-methionine (Ademetionine) is an intermediate metabolite of methionine,for treatment of primary biliary cirrhosis and major depressive disorder.

L-Homoserine ((S)-(-)-2-AMINO-4-HYDROXYBUTYRIC ACID) is a more reactive variant of the amino acid serine. In this variant, the hydroxyl side chain contains an additional CH2 group which brings the hydroxyl group closer to its own carboxyl group, allowing it to chemically react to form a five-membered ring. This occurs at the point that amino acids normally join to their neighbours in a peptide bond. L-Homoserine is therefore unsuitable for forming proteins and has been eliminated from the repertoire of amino acids used by living things. L-Homoserine is the final product on the C-terminal end of the N-terminal fragment following a cyanogen bromide cleavage.

S-allyl-L-cysteine (S-Allylcysteine), a natural constituent of fresh garlic, has antioxidant and anticancer properties in animals.

L-Chicoric Acid (trans-Caffeoyltartaric acid) has been shown to inhibit hyaluronidase and HIV-1 integrase, and to possess phagoeytosis stimulatory activity in vitro and in vivo and antiviral acitivy. L-Chicoric acid may reduce acute alcohol-induced steatosis in mice through interfering with the induction of iNOS and iNOS-dependent signaling cascades in the liver. 3. L-Chicoric acid inhibited cell viability and induced apoptosis in 3T3-L1 preadipocytes which was characterized by chromatin condensation and poly ADP-ribose-polymerase (PARP) cleavage.

S-Adenosyl-L-methionine disulfate tosylate (Ademetionine disulfate tosylate) is the disulfate-tosylate mixed salt of a mixture of diastereoisomers of the ademetionine ions. Ademetionine possesses anti-inflammatory activity and has been used in treatment of chronic liver disease.

Thymidine-5'-diphosphate-L-rhamnose disodium, isolated from Occhromonas malhamensis [1], is a chemical compound.

Ellagic acid 4-O-α-L-arabinopyranoside, extracted from Dimocarpus longan Lour. (syn. Euphoria longan Lam.), exhibits antioxidative activity [1].

Cannogenol 3-O-β-gentiobiosyl-(1→4)-α-L-thevetoside (Compound 12), a cardiac glycoside extracted from Thevetia peruviana seeds, exhibits cytotoxic effects on SW1990 and MGC-803 cells with IC50 values of 9.52 and 7.70 μM, respectively [1].

Acacetin 7-O-β-D-glucuronopyranosyl-(1→2)[α-L-rhamnopyranosyl-(1→6)]-β-D-glucopyranoside, also known as compound 8, is a flavonoid glycoside isolated from the leaf extract of the black locust (Leguminosae)[1].