Item

CP2010

AJI92

USP26

Assay

≥99.0%

99.0~101.0%

98.5~101.5%

pH

5.0~6.5

5.0~6.5

5.0~6.5

Specific rotation[a]D₀²⁰

-11.3°~-12.1°

-11.3~-12.1º

 [a]D₀²⁵

-9.8~-11.2º

Transmittance(T₄₃₀)

clear  colorless
≥95.0%

≥98.0%

Chloride(Cl)

≤0.02%

≤0.02%

≤0.04%

Ammonium(NH₄)

≤0.02%

≤0.02%

Sulfate(SO₄)

≤0.02%

≤0.02%

≤0.04%

Iron(Fe)

≤10ppm

≤10ppm

≤30ppm

Heavy metals(Pb)

≤10ppm

≤10ppm

≤15ppm

Arsenic

≤1ppm

≤1ppm(As2O3)

≤1.5ppm(As2O3)

Other amino acids

≤0.40%

Conforms

Loss on drying

≤0.20%

≤0.20%

≤0.30%

Residue on ignition

≤0.10%

≤0.10%

≤0.40%

Organic volatile impurities

Conforms

Endotoxin

≤0.25EU/ml

Glycine

L-Cysteine

L-Leucine

L-Aspartic acid

DL-Alanine

L-Cysteine anhy

L-Proline

L-Cystine

L-Alanine

L-Cysteine mono

L-Methionine

L-Tryptophan

DL-Methionine

L-Threonine

L-Tyrosine

L-Arginine

L-Lysine HCL

Disodium succinate

L-Glutamic acid

L-Valine

L-Isoleucine

L-Ornithine mono