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E-catalogue (Amino Acid) Page 1 of 5Catalogue ID: C3
Amino Acids
Amino acids are the building blocks of protein. It is vital
components to the development and maintenance of skin, hair, muscle tissue, the
body's organs, blood cells, enzymes and various hormones. The human body builds
over 50,000 known proteins and over 15,000 known enzymes from amino acids. All
enzymes, including digestive enzymes, are made from amino acids, sometimes with
vitamins acting as coenzymes and sometimes with mineral activators. Amino acids
play a key role in normalizing moods, attention, concentration, aggression, sex drive,
and sleep. When a person eats protein, the body must first break it down into the
individual amino acids before it can use them in specific metabolic pathways, or to
build enzymes or body proteins.
APPLICATION OF AMINO ACIDS AND THEIR DERIVATIVES
MEDICINEThe utilization of AMINO ACIDS has been applied in Medication. Especially D-
amino acids, such as D-Cysteine and D-Serine, are proposed to be widely used in the
pharmaceutical products.
FOODAMINO ACIDS are mandatory nourishment for all living beings that these acids have
been significantly treaded as artificial additives or seasonings in food productions.
Amino acids are also used as quality improvement of bread baking, nutrition
supplement for dry milk, etc.
COSMETICAmino acids can be used for skin protection, UV absorbance, anti-bacterial action,
and many other applications in cosmetics.
Zhen Hua Trading Limited Room 2003, 20/F, C.C. Wu Building, 302-308 Hennessy Road, Wanchai, HKTel : (852) 2527 1125 Fax : (852) 2529 0470Websites: www.zhenhua.com.hk E-mail : [email protected]
E-catalogue (Amino Acid) Page 2 of 5Catalogue ID: C3
AMINO ACIDS & DERIVATIVESAmino acids can be generated as many different products. Most of their derivatives
are listed as follows which we can supply to you. For the common products,
specifications are given for reference.
Amino Acid Powder (Feed grade)Examination Items Specification
Description Brown powder
Arsenic (As2O3) 1.5ppm Max.
Total nitrogen 5% Min.
Iron (Fe) 20ppm Max.
Heavy Metals (Pb) 10ppm Max.
Arsenic (As2O3) 1ppm Max.
PH 4.8 to 5.2 4.8 to 5.2
Amino Acid Flavour LiquorExamination Items Specification
Description Clear and slightly brown liquid
Arsenic (As2O3) 1.5ppm Max.
Total nitrogen 5% Min.
Iron (Fe) 20ppm Max.
Heavy Metals (Pb) 10ppm Max.
Arsenic (As2O3) 1ppm Max.
PH 4.8 to 5.2 4.8 to 5.2
L-Cystine Examination Items Specification
Specific Rotation [a]D20o -215 to +225
State of Solution 98.0% Min.
Chloride (Cl) 0.02% Max.
Ammonium (NH4) 0.02% Max.
Sulfate (SO4) 0.02% Max.
Iron (Fe) 10ppm Max.
Arsenic (As2O3) 1ppm Max.
Loss on drying 0.20% Max.
Zhen Hua Trading Limited Room 2003, 20/F, C.C. Wu Building, 302-308 Hennessy Road, Wanchai, HKTel : (852) 2527 1125 Fax : (852) 2529 0470Websites: www.zhenhua.com.hk E-mail : [email protected]
E-catalogue (Amino Acid) Page 3 of 5Catalogue ID: C3
Residue in ignition 0.10% Max.
Assay 98.5% to 101.0%
L-GlutamicExamination Items Specification
Description White crystalline powder
Specific Rotation [a]D20o +6.3 to +7.3
Heavy Metals (Pb) 10ppm Max
Arsenic (As2O3) 1.5ppm Max
Loss on Drying 0.20% Max
Residue in Ignition 0.10% Max
Melting Point With decomposition at about 185oC
L-PhenylalanineExamination Items Specification
Specific Rotation [a]D20 -33.5 to 35.0�State of Solution 98.0% Min.
Chloride (Cl) 0.020% Max.
Ammonium (NH4) 0.02% Max.
Sulfate (SO4) 0.020% Max.
Arsenic (As2O3) 1ppm Max
Loss on drying 0.20% Max.
Residue in ignition 0.10% Max.
Iron (Fe) 10ppm Max.
Heavy Metals (Pb) 10ppm Max.
Assay 99.0% to 100.5%
DL-AlanineExamination Items Specification
Chloride (Cl) 0.020% Max.
Ammonium (NH4) 0.02% Max.
Sulfate (SO4) 0.020% Max.
Zhen Hua Trading Limited Room 2003, 20/F, C.C. Wu Building, 302-308 Hennessy Road, Wanchai, HKTel : (852) 2527 1125 Fax : (852) 2529 0470Websites: www.zhenhua.com.hk E-mail : [email protected]
E-catalogue (Amino Acid) Page 4 of 5Catalogue ID: C3
Iron (Fe) 20ppm Max.
Heavy Metals (Pb) 10ppm Max.
Arsenic (As2O3) 1ppm Max.
Loss on drying 0.20% Max.
Residue in ignition 0.10% Max.
Assay 98.5% to 101.5%
L-Cysteine hydrochloride anhydrousExamination Items Specification
Description white crystalline substance, tasteless
Specific Rotation [a]D20o +5.6 to +8.9
State of Solution 98.0% Min.
Heavy Metals (Pb) 10ppm Max.
Arsenic (As2O3) 1ppm Max.
Loss on drying 1.00% Max.
Residue in ignition 0.10% Max.
Assay 98.5% to 102.0%
Other products suppliedL-Cysteine Base N-Acety-L-Cysteine L-Cysteine hydrochloride monohydrate
L-Leucine L-Lysine Acetate S-Carboxymethyl-L-Cysteine
L-Tyrosine L-Carnitine Hydrochloride L-Arginine Monohydrochloride
L-Alanine Cysteamine HCl盐 L-Asparagine monohydrate
L-Isoleucine L-Pyroglutamic Acid L-Lysine hydrochloride monohydrate
L-Valine DL-Aspartic Acid Glycine [Pharm. /Feed/Industry grade]
L-Aspartic Acid DL-Glutamic Acid L-Trytophan [Pharmaceutical grade]
L-Proline DL-Methionine L-Methlonine [Pharmaceutical grade]
L-Threonine DL-Leucine L-Carnitine Tartrate（98% Min.）
L-Glutamic Acid DL-Threonine L-Phenylglycine （98% Min.）
Zhen Hua Trading Limited Room 2003, 20/F, C.C. Wu Building, 302-308 Hennessy Road, Wanchai, HKTel : (852) 2527 1125 Fax : (852) 2529 0470Websites: www.zhenhua.com.hk E-mail : [email protected]
E-catalogue (Amino Acid) Page 5 of 5Catalogue ID: C3
L-Hydroxproline DL-Tyrosine P-Anisole-benzoyl-L-Zinc Glutamic Acid
L-Asparagine DL-Lysine.H2O DL-Acrinyl-Phenylglycine
L-Carnitine Base DL-Isoleucine DL-Carnitine HCl（98% Min.）
Taurine DL-Cystine Copper-DL-Threonine.Acetaldehyde
D-Glutamic Acid DL-Phenylalanine D-Lysine monohydrate hydrochloride
D-Alanine DL-Lysine.HCL N-Acetyl-L-Proline
D-Proline DL-Proline N-Acetyl-L-Tyrosine
D-Leucine DL-Valine N-Acetyl-Glycine (98% Min.)
D-Methlonine DL-Pyroglutamic Acid N-Acetyl-DL-Methronine
D-Asparagine DL-Cysteine HCl H2O N-Acetyl-Glucosamine
D-Phenylalanine DL-allo-Threonine N-T-BOC-L-Phenylalanine
D-Phenylglycine DL-Threonine.Formaldehyde N-Methylglycine (98% Min.)
D-allo-Threonine DL-Phenylglycine N-Phthaloyl-L-Glutamic Acid
D-Pyroglutamic Acid D-Glucosamine.HCL N-Benzyloxy-carboxyl-L-Valine
D-Threonine Creatine of Monohydrate Acetyl-L-Carnitine（98% Min.）
D-Cycloserine Creatine of Anhydrous Glycine ethylester HCl
N-Acetyl-Glycine Cysteamine HCl Glycine methylester HCl
Glycinamida.HCL盐 Aluminum Gmcinate L-Phenylalanine methylester HCl
L-Citric Acid Glycinamide.HCl Sodium Glycinate (FCC3) Food Grade
Citric Creatine Calcium Aspartate Aluminum Zirconium Glycinate Series
D-xylose Magnesium Aspartate Hydroxyproline methyl ester
Zinc Aspartate DL-Magnesium Aspartate Benzoyl hydroxyproline methylester
Aspartame N-Phthaloyl-L-glutamic acid Monosodium glutamate (FCC/USP)
Please contact us if the specifications of your wanted products are not shown or you
cannot find your wanted derivatives in the list here. We will try our bests to provide
you with best quality products.
Thank you for your attention!
Zhen Hua Trading Limited Room 2003, 20/F, C.C. Wu Building, 302-308 Hennessy Road, Wanchai, HKTel : (852) 2527 1125 Fax : (852) 2529 0470Websites: www.zhenhua.com.hk E-mail : [email protected]
E-catalogue (Amino Acid) Page 5 of 5Catalogue ID: C3
L-Hydroxproline DL-Tyrosine P-Anisole-benzoyl-L-Zinc Glutamic Acid
L-Asparagine DL-Lysine.H2O DL-Acrinyl-Phenylglycine
L-Carnitine Base DL-Isoleucine DL-Carnitine HCl（98% Min.）
Taurine DL-Cystine Copper-DL-Threonine.Acetaldehyde
D-Glutamic Acid DL-Phenylalanine D-Lysine monohydrate hydrochloride
D-Alanine DL-Lysine.HCL N-Acetyl-L-Proline
D-Proline DL-Proline N-Acetyl-L-Tyrosine
D-Leucine DL-Valine N-Acetyl-Glycine (98% Min.)
D-Methlonine DL-Pyroglutamic Acid N-Acetyl-DL-Methronine
D-Asparagine DL-Cysteine HCl H2O N-Acetyl-Glucosamine
D-Phenylalanine DL-allo-Threonine N-T-BOC-L-Phenylalanine
D-Phenylglycine DL-Threonine.Formaldehyde N-Methylglycine (98% Min.)
D-allo-Threonine DL-Phenylglycine N-Phthaloyl-L-Glutamic Acid
D-Pyroglutamic Acid D-Glucosamine.HCL N-Benzyloxy-carboxyl-L-Valine
D-Threonine Creatine of Monohydrate Acetyl-L-Carnitine（98% Min.）
D-Cycloserine Creatine of Anhydrous Glycine ethylester HCl
N-Acetyl-Glycine Cysteamine HCl Glycine methylester HCl
Glycinamida.HCL盐 Aluminum Gmcinate L-Phenylalanine methylester HCl
L-Citric Acid Glycinamide.HCl Sodium Glycinate (FCC3) Food Grade
Citric Creatine Calcium Aspartate Aluminum Zirconium Glycinate Series
D-xylose Magnesium Aspartate Hydroxyproline methyl ester
Zinc Aspartate DL-Magnesium Aspartate Benzoyl hydroxyproline methylester
Aspartame N-Phthaloyl-L-glutamic acid Monosodium glutamate (FCC/USP)
Please contact us if the specifications of your wanted products are not shown or you
cannot find your wanted derivatives in the list here. We will try our bests to provide
you with best quality products.
Thank you for your attention!
Zhen Hua Trading Limited Room 2003, 20/F, C.C. Wu Building, 302-308 Hennessy Road, Wanchai, HKTel : (852) 2527 1125 Fax : (852) 2529 0470Websites: www.zhenhua.com.hk E-mail : [email protected]
