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Company: DONGYU USI  Amino Acids, Phytochemicals, Nucleotides & Nutrients~Amino Acids  Clear All 

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Amino Acids

Amino acid food additives enhance the total protein content in free or combined forms. The additive occurs in hydrated or anhydrous forms as well as hydrochloride, sodium, or potassium salts.  Read More
DONGYU USI is a distributor of amino acids, L-carnitine, herbal extracts, vitamins, and nutritional supplements. Their products find application as sweeteners, supplements, preservatives, acidulants, and antioxidants, among much more. The company's goal is to provide the highest quality products and provide current and reliable market information and insights.
53 Results
Agmatine Sulfate DONGYU USI Agmatine Sulfate is a white crystalline powder with clear solubility.
BCAA DC 95 (2:1:1) DONGYU USI BCAA DC 95 (2:1:1) is a white to off-white granular.
D-Aspartic Acid DONGYU USI D-Aspartic Acid is supplied as white crystals or crystalline powder.
D-Phenylalanine DONGYU USI D-Phenylalanine is supplied as a white or off-white crystalline powder.
DL-Methionine (AJI) DONGYU USI DL-Methionine (AJI) is supplied as white crystals or crystalline powder that is soluble in cold water and in methanol.
DL-Phenylalanine (FCC) DONGYU USI DL-Phenylalanine (FCC) is supplied as white crystals or crystalline powder.
Glycine (USP) DONGYU USI Glycine (USP) is supplied as white crystals. It is easily soluble in hot water, soluble in cold water, and slightly soluble in acetone.
Instant BCAA DONGYU USI Instant BCAA is a white to off-white fine powder.
L-5-Hydroxytryptophan DONGYU USI L-5-Hydroxytryptophan is an off-white, fine powder that is partially soluble in cold water. It is derived from the seeds of the Griffonia simplicifolia plant.
L-Alanine DONGYU USI L-Alanine is a white crystal or crystalline powder that is soluble in water.
L-Arginine Alpha Ketoglutarate Dihydrate (2:1) DONGYU USI L-Arginine Alpha Ketoglutarate Dihydrate (2:1) is supplied as a white or off-white powder.
L-Arginine Base DONGYU USI L-Arginine Base is a white or almost crystalline powder or colorless crystals. It is soluble in cold and hot water, insoluble in diethyl ether, and sparingly soluble in alcohol.
L-Arginine Ethylester Dihydrochloride DONGYU USI L-Arginine Ethylester Dihydrochloride is supplied as a white powder.
L-Arginine HCL (USP) DONGYU USI L-Arginine HCL (USP) is a white powder that is incompatible with strong oxidizing agents.
L-Arginine L-Malate (2:1) DONGYU USI L-Arginine L-Malate (2:1) is supplied as a white crystalline powder.
L-Arginine L-Pyroglutamate DONGYU USI L-Arginine L-Pyroglutamate is supplied as white crystals or crystalline powder. It has stable solubility, and is incompatible with strong oxidizing agents.
L-Aspartic Acid DONGYU USI L-Aspartic Acid is slightly soluble in water.
L-Carnosine DONGYU USI L-Carnosine is supplied as a white to almost white powder that is soluble in cold water.
L-Citrulline (AJI) DONGYU USI L-Citrulline (AJI) is supplied as a white crystal or crystalline powder.
L-Citrulline DL-Malate (1:1) DONGYU USI L-Citrulline DL-Malate (1:1) is supplied as a white crystalline powder.
L-Citrulline DL-Malate (2:1) DONGYU USI L-Citrulline DL-Malate (2:1) is supplied as a white crystalline powder.
L-Cysteine Base DONGYU USI L-Cysteine Base is supplied as a white crystal or crystalline powder that is very soluble in water.
L-Cysteine HCL Anhydrous DONGYU USI L-Cysteine HCL Anhydrous is supplied as white crystals or crystalline powder that is very soluble in water.
L-Cysteine HCL Mono (AJI) DONGYU USI L-Cysteine HCL Mono (AJI) is supplied as white crystals, or crystalline free-flowing powder.
L-Cystine DONGYU USI L-Cystine is supplied as white crystals or crystal powder that is practically insoluble in water and alcohol.
L-Glutamic Acid Base DONGYU USI L-Glutamic Acid Base is supplied as white crystals or crystalline powder that is very slightly soluble in cold water.
L-Glutamic Acid HCl DONGYU USI L-Glutamic Acid HCl is supplied as white crystals or crystalline powder that is freely soluble in water and alcohol.
L-Glutamine AKG (2:1) DONGYU USI L-Glutamine AKG (2:1) is supplied as a white crystalline powder.
L-Glutamine (FCC) DONGYU USI L-Glutamine (FCC) is a whitish crystalline powder that is soluble in cold water.
L-Glutathione Reduced DONGYU USI L-Glutathione Reduced is a white crystalline powder that is partially soluble in cole and hot water, but insoluble in methanol and diethyl ether.
L-Histidine Base DONGYU USI L-Histidine Base is a white or almost white crystalline powder that is soluble in water.
L-Histidine HCL DONGYU USI L-Histidine HCL is supplied as white crystals or crystalline powder that is freely soluble in water and alcohol.
L-Isoleucine DONGYU USI L-Isoleucine is supplied as white crystals or crystalline powder that is slightly soluble in hot alcohol. It tastes slightly sweet at first, then bitter.
L-Leucine Instantized DONGYU USI L-Leucine Instantized is an essential α-amino acid used in the biosynthesis of proteins. This dietary amino acid has the capacity to directly stimulate muscle protein synthesis. This product is supplied as white crystals or crystalline powder with a sligh...view more L-Leucine Instantized is an essential α-amino acid used in the biosynthesis of proteins. This dietary amino acid has the capacity to directly stimulate muscle protein synthesis. This product is supplied as white crystals or crystalline powder with a slightly bitter taste. view less
L-Leucine (USP) DONGYU USI L-Leucine (USP) is an essential α-amino acid used in the biosynthesis of proteins. This dietary amino acid has the capacity to directly stimulate muscle protein synthesis. This product is supplied as a white or almost white crystalline powder that is solu...view more L-Leucine (USP) is an essential α-amino acid used in the biosynthesis of proteins. This dietary amino acid has the capacity to directly stimulate muscle protein synthesis. This product is supplied as a white or almost white crystalline powder that is soluble in cold water. view less
L-Lysine HCL (USP) DONGYU USI L-Lysine HCL (USP) is supplied as white crystals or crystalline powder that is soluble in cold water.
L-Methionine DONGYU USI L-Methionineis supplied as white crystals or crystalline powder that is soluble in water.
L-Norvaline DONGYU USI L-Norvaline is supplied as a white powder.
L-Ornithine α-ketoglutarate (1:1) DONGYU USI L-Ornithine α-ketoglutarate (1:1) is supplied as a white to yellowish crystalline powder.
L-Ornithine α-ketoglutarate (2:1) DONGYU USI L-Ornithine α-ketoglutarate (2:1) is supplied as a white to yellowish crystalline powder.
L-Ornithine HCL (AJI) DONGYU USI L-Ornithine HCL (AJI) is a white crystal or crystalline powder that is soluble in cold water.
L-Phenylalanine (USP) DONGYU USI L-Phenylalanine (USP) is a white crystal or crystalline powder that is sparingly soluble in water.
L-Proline DONGYU USI L-Proline is a white crystal or crystalline powder that is easily soluble in cold water.
L-Serine DONGYU USI L-Serine is supplied as white crystals or as a crystalline powder.
L-Theanine DONGYU USI L-Theanine is supplied as a white crystalline powder that is soluble in water.
L-Threonine DONGYU USI L-Threonine is supplied as white crystals that are soluble in water.
L-Tryptophan (USP) DONGYU USI L-Tryptophan (USP) is supplied as white to slightly yellowish-white crystals or crystalline powder, and it is slightly soluble in water.
L-Tyrosine (USP) DONGYU USI L-Tyrosine (USP) is supplied as a white crystalline powder of colourless crystals that are very slightly soluble in water.
L-Valine DONGYU USI L-Valine is supplied as almost odorless white crystals or crystalline powder.
N-Acetly-L-Glutamine DONGYU USI N-Acetly-L-Glutamine is supplied as white crystals, or as a crystalline powder.
N-Acetyl-L-Cysteine DONGYU USI N-Acetyl-L-Cysteine is supplied as white crystals or crystalline powder.
N-Acetyl-L-Tyrosine (AJI) DONGYU USI N-Acetyl-L-Tyrosine (AJI) is an amino acid used as a dietary supplement for cognitive functions.
N.N-Dimethyl Glycine HCL DONGYU USI N.N-Dimethyl Glycine HCL is supplied as off-white crystals.