l-arginine base, assay 98.5% min., fermentation technology, usp32

description:
l-arginine is an ɑ-amino acid that is used in the biosynthesis of proteins. white or almost white
crystalline powder or colorless crystals, freely soluble in water,and practically insoluble in ethanol. it is strongly alkaline, and its water solutions absorb carbon dioxide from the air. melting temperature at about :235℃

specification: usp32
1) ir spectrum: confirm
2) description: crystals or crystalline powder
3) the layer chromatography: confirm
4) loss on drying: ≤0.5%
5) residue on ignition: ≤0.3%
6) specific rotation: +26.3 – +27.7
7) l-arginine (dry basis): 98.5%-101.5%
8) iron: ≤0.003%
9) ph: 10.5-12.0
10) clarity and color clear: colorless
11) arsenic: ≤0.0001%
12) chloride (cl): ≤0.05w/%
13) heavy metal: ≤0.0015%
14) single impurity: ≤0.5%
15) total impurity: ≤2.0%
16) transmittance: ≧98.0%
17) other amino acid: ≤0.4%

solubility:
freely soluble in water,and practically insoluble in ethanol.

packaging and storage:
25kg/drum. preserve in well-closed containers, protected from light.
1x20fcl, with 9t with pallets; 11.5t without pallets

function:
amino acid; nutritional supplement

safety:
this product is safe for the intended use(fda§172．320,2000). avoid ingestion, inhalation of dust or direct contact by applying suitable protective measures and personal hygiene. for full safety information and necessary precautions, please refer to the respective material safety data sheet.

74-79-3