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LC244 L-Aspartic acid

extra pure Ph Eur,BP,USP

 

Order number Packaging Quantity Price €
AC27244 Plastic bottle 100 g inquire
AC27244 Plastic bottle 1 kg inquire
AC27244 Plastic drum 25 kg inquire

 

Product information
Grade Ph Eur,BP,USP
Synonyms L-a-Aminosuccinic acid
Hill Formula C4H7NO4
HS Code 2922 49 85
EC number 200-291-6
Molar mass 133.1 g/mol
CAS number 56-84-8

 

Chemical and physical data

Solubility 4 g/l (20 °C)
Melting point 269 – 271 °C (decomposition)
Molar mass 133.1 g/mol
Bulk density 430 kg/m3
pH value 2.5 – 3.5 (4 g/l, H2O, 20 °C)

 

Safety information
Storage class 10 – 13 Other liquids and solids
WGK NWG not water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

 

Specifications
Assay (acidimetric; calculated on dried substance) 98.5 – 101.5 %
Identity (IR-spectrum) passes test
Appearance White crystalline powder or colorless crystals.
Appearance of solution (50 g/l; hydrochloric acid 1 mol/l) Clear and not more intense in color than reference solution BY6 (Ph. Eur.).
Spec. rotation (α 20/D, 80 g/l, hydrochloric acid 250 g/l, calc. on dried substance) +24.0 ° to +26.0 °
Chloride (Cl) ≤ 0.02 %
Sulfate (SO4) ≤ 0.03 %
Heavy metals (as Pb) ≤ 0.001 %
NH4 (Ammonium) ≤ 0.02 %
Fe (Iron) ≤ 0.001 %
Residual solvents (Ph. Eur./USP/ICH) excluded by manufacturing process
Organic volatile impurities (according to USP) conforms
Ninhydrin – positive substances (TLC) passes test
Sulfated ash (600 °C) ≤ 0.1 %
Loss on drying (105 °C) ≤ 0.5 %
Corresponds to Ph. Eur., BP, USP.

 

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