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LC241 L-Asparagine monohydrate

suitable for use as excipient exp Ph Eur

 

Order number Packaging Quantity Price €
AC27241 Plastic bottle 100 g inquire
AC27241 Plastic bottle 1 kg inquire
AC27241 Plastic drum 5 kg inquire
AC27241 Plastic drum 10 kg inquire

 

Product information
Grade Ph Eur
Synonyms Asparaginic acid semiamide
Hill Formula C4H8N2O3 * H2O
HS Code 2924 19 00
EC number 200-735-9
Molar mass 150.14 g/mol
CAS number 5794-13-8

 

Chemical and physical data

Solubility 22 g/l (20 °C)
Melting point 215 – 217 °C decomposes
Molar mass 150.14 g/mol
Bulk density 530 kg/m3
pH value 4.0 – 5.5 (20 g/l, H2O, 20 °C)

 

Safety information
Storage class 10 – 13 Other liquids and solids
WGK WGK 1 slightly 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 (perchloric acid titration, calculated on dried substance) 99.0 – 101.0 %
Identity (IR-spectrum) passes test
Appearance white to almost white crystalline powder or colorless crystals
Appearance of solution (20 g/l, CO2-free water) clear and colorless
Spec. rotation (α 20/D, 100 g/l, hydrochloric acid 3 mol/l, calc. on drie substance) +33.7° to +36.0°
pH (20 g/l, CO2-free water) 4.0 – 6.0
Chloride (Cl) ≤ 200 ppm
Sulfate (SO4) ≤ 200 ppm
Heavy metals (as Pb) ≤ 10 ppm
Fe (Iron) ≤ 10 ppm
NH4 (Ammonium) ≤ 0.1 %
Aspartic acid ≤ 0.5 %
Ninhydrin – positive substances (TLC)
– Glutamic acid
≤ 0.5 %
– any other impurity ≤ 0.5 %
Residual solvents (Ph.Eur./ICH) class 3 (Ethanol) ≤ 0.5 %
Other residual solvents (Ph Eur/ICH) excluded by manufacturing process
Sulfated ash (600 °C) ≤ 0.1 %
Loss on drying (130 °C, 3 h) 10.5 – 12.5 %
Bacterial endotoxins ≤ 3.0 I.U./g
Residues of metal catalysts or metal reagents acc. to EMEA/CHMP/SWP/4446/2000
are not likely to be present.
Corresponds to Ph. Eur.

 

 L-Asparagine monohydrate, Laboratory chemicals, Laboratory Chemicals manufacturer, Laboratory chemicals india, Laboratory Chemicals directory, elabmart