-
China wholesale Neutral Amino Acid - L-Lysine hydrochloride – Boyu
Characteristics: White groud powder, Easily soluble in water, slightly soluble in alcohol, insoluble in ether. Item Specifications Appearance White crystalline powder or granular Specific rotation[a]D25 +20.0°~ +21.5° Transmittance ≥98.0% Loss on drying ≤0.50% Residue on ignition ≤0.10% Heavy metals ≤15ppm Chloride 19.0% ~ 19.6% Sulfate(as SO4) ≤0.03% Iron ( as Fe) ≤0.001% Arsenic(as As) ≤0.0001% Ammonium ≤0.02% Assay 98.5~100.5% Uses: Mainly used in food, medic... -
2021 Latest Design N-Acetyl L-Cysteine - L-Cysteine – Boyu
Characteristics: White crystal or crystalline powder Item Specifications Specific rotation[a]D20° + 8.3°~ +9.5° State of solution (Transmittance) ≥95.0% Loss on drying ≤0.50% Residue on ignition ≤0.10% Heavy metals(Pb) ≤10PPM Chloride (Cl) ≤0.04% Arsenic (As2O3) ≤1PPM Iron (Fe) ≤10PPM Ammonium (NH4) ≤0.02% Sulfate (SO4) ≤0.030% Other amino acids Chromatographically pH value 4.5 ～ 5.5 Assay 98.0%～101.0% Uses: Mainly used in medicine, food, cosmetics, biochemic... -
Manufacturer for Feed Additives Pentahydrate - L-Cysteine Hydrochloride Monohydrate – Boyu
Characteristics: White crystal or crystalline powder, sour taste, soluble in water and ethanol Item Specifications Description White crystals or crystalline powder Identification Infrared absorption uniformity Specific rotation[a]D20° +5.5°~ +7.0° State of solution (Transmittance) Clear and colorless ≥98.0% Loss on drying 8.5%-12.0% Residue on ignition ≤0.10% Chloride (Cl） 19.89% ~ 20.29% Sulfate (SO4) ≤0.02% Heavy metals（Pb） ≤0.001% Iron (Fe) ≤0.001% Ammonium ( NH... -
Factory wholesale Leucine Amino Acids - L-Leucine – Boyu
Characteristics: White powder, odorless, slightly bitter taste. Description White crystals or crystalline powder Specific rotation [a]D20° +14.90o ~ +17.30o Transmittance ≥98.0% Loss on drying ≤0.20% Residue on ignition ≤0.10% Chloride (Cl) ≤0.04% Sulfate( SO4) ≤0.02% Iron（Fe） ≤0.001% Heavy metals（Pb） ≤0.0015% Other amino acid Not detd. pH value 5.5～7.0 Assay 98.5%～101.5% Uses: Provide energy for the body; regulate protein metabolism, since it is easily conve... -
2021 China New Design 99% Purity - L-Cysteine Hydrochloride Monohydrate – Boyu
Characteristics: White crystal or crystalline powder, sour taste, soluble in water and ethanol Item Specifications Description White crystals or crystalline powder Identification Infrared absorption uniformity Specific rotation[a]D20° +5.5°~ +7.0° State of solution (Transmittance) Clear and colorless ≥98.0% Loss on drying 8.5%-12.0% Residue on ignition ≤0.10% Chloride (Cl） 19.89% ~ 20.29% Sulfate (SO4) ≤0.02% Heavy metals（Pb） ≤0.001% Iron (Fe) ≤0.001% Ammonium ( NH... -
Hot-selling Best Prices Natca - N-Acetyl-L-Cysteine – Boyu
Characteristics: White crystalline or crystalline powder,Similar to garlic smell, sour taste. It is hygroscopic, soluble in water or ethanol, but insoluble in ether and chloroform. Item Specifications Specific rotation [a]D20° +21.3o ~ +27.0o State of solution（Transmittance） ≥98.0% Loss on drying ≤0.50% Residue on ignition ≤0.20% Heavy metals（Pb） ≤10ppm Chloride (Cl) ≤0.04% Ammonium(NH4) ≤0.02% Sulfate (SO4) ≤0.03% Iron (Fe) ≤20ppm Arsenic(as As2O3) ≤1ppm Melting ... -
OEM Supply CAS: 616-91-1 - L-Tyrosine – Boyu
Characteristics: White powder, Odorless and tasteless. Very slightly soluble in water, insoluble in absolute ethanol, methanol or acetone; soluble in dilute hydrochloric acid or dilute nitric acid. Item Specifications Appearance White crystals or crystalline powder Specific rotation [a]D20° -11.3o ~-12.1o Transmittance ≥98.0% Loss on drying ≤0.20% Residue on ignition ≤0.10% Chloride (Cl) ≤0.02% Sulfate ≤0.02% Iron（Fe） ≤10ppm Arsenic ≤1ppm Heavy metals（Pb） ≤10ppm P... -
Big discounting Boc-Glycine - L-Cystine – Boyu
Characteristics: White crystalline or crystalline powder, soluble in dilute acid and alkali solutions, very insoluble in water, insoluble in ethanol. Item Specifications Appearance White crystals or crystalline powder Specific rotation [a]D20° -215.0o ~ -225.0o Transmittance ≥98.0% Loss on drying ≤0.20% Residue on ignition ≤0.10% Chloride (Cl) ≤0.02% Ammonium (NH4) ≤0.04% Sulfate ≤0.02% Iron（Fe） ≤10ppm Heavy metals（Pb） ≤10ppm Transmittance ≥98.0% pH Value 5.0~... -
2021 wholesale price L-Tert-Leucine - L-Lysine hydrochloride – Boyu
Characteristics: White groud powder, Easily soluble in water, slightly soluble in alcohol, insoluble in ether. Item Specifications Appearance White crystalline powder or granular Specific rotation[a]D25 +20.0°~ +21.5° Transmittance ≥98.0% Loss on drying ≤0.50% Residue on ignition ≤0.10% Heavy metals ≤15ppm Chloride 19.0% ~ 19.6% Sulfate(as SO4) ≤0.03% Iron ( as Fe) ≤0.001% Arsenic(as As) ≤0.0001% Ammonium ≤0.02% Assay 98.5~100.5% Uses: Mainly used in food, medic... -
Bottom price Tert Leucine - L-Arginine Hydrochlorid – Boyu
Characteristics: White powder,Odorless, bitter taste, easily soluble in water, the aqueous solution is acidic, very slightly soluble in ethanol, insoluble in ether. Item Specifications Appearance White crystalline or crystalline powder Identification Infrared absorption Specific rotation +21.4°~＋23.6° Loss on drying ≤0.2% Residue on ignition ≤0.10% Sulfate ≤0.02% Heavy metals ≤0.001% Chloride(as Cl) 16.50%~17.00% Ammonium ≤0.02% Iron ≤0.001% Arsenic ≤0.0001% ... -
High Quality for Carbocistein CAS 638-23-3 - N-Acetyl-L-Cysteine – Boyu
Characteristics: White crystalline or crystalline powder,Similar to garlic smell, sour taste. It is hygroscopic, soluble in water or ethanol, but insoluble in ether and chloroform. Item Specifications Specific rotation [a]D20° +21.3o ~ +27.0o State of solution（Transmittance） ≥98.0% Loss on drying ≤0.50% Residue on ignition ≤0.20% Heavy metals（Pb） ≤10ppm Chloride (Cl) ≤0.04% Ammonium(NH4) ≤0.02% Sulfate (SO4) ≤0.03% Iron (Fe) ≤20ppm Arsenic(as As2O3) ≤1ppm Melting ... -
OEM Factory for L-Cysteine Hydrochloride Anhydrous - S-Carboxymethyl-L-Cysteine – Boyu
Item Specifications Description White crystals or crystalline powder Identification Infrared absorption uniformity Specific optical rotation[a]D20° -33.5°～ -36.5° State of solution ≥98.0% Loss on drying ≤0.30% Residue on ignition ≤0.1% Chloride ≤0.04% Sulfate (SO4) ≤0.02% Heavy metals（Pb） ≤10ppm Iron (Fe) ≤30ppm Ammonium (NH4) ≤0.02% Arsenic (As2O3) ≤1ppm Other amino acids Qualified PH value 2.0 ～ 3.5 Assay 98.5% ~101.0% Uses: Respiratory system drugs, ...
