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| Producer, Manufacturer,
Supplier of |
| L-Aspartic Acid |
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| GRR
Code : |
0359 |
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| CAS No : |
56-84-8 |
| CI No : |
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| Molecular Formula
: |
C4H7NO4 |
| Molecular Weight
: |
133.1 |
| Description
: |
White crystalline powder · Soluble in mineral acids · Solubility in water at 20 ° C 5 g/l · M. P.: 270 ºC dec. ·
APPLICATIONS: Analytical reagent: BP 2008 · Ph. Eur. 6.0 · USP 30 · Pharmaceutical and Food Industry ·
Synthesis reagent: Synthesis of 2-Chloro-1,4-butanediol; · For differential protection of the a -carboxyl group of N-protected amino-acids by reaction with formaldehyde to give the cyclic oxazolidinone
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| Website : |
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| Synonyms : |
C4H7NO4, (S)-(+)-Aminosuccinic-Acid, (S)-(+)-Aspartic Acid |
| Specifications
: |
| Specifications |
|
| Minimum assay (Acidim.) |
99,0 % |
| Identity |
IR p/t. |
| T.L.C |
p/t. |
| Specific rotation [a]20/D c=8 (in HCl 7 mol/l) |
+24,0 to +26,0° |
MAXIMUM LIMIT OF IMPURITIES |
|
| Insoluble matter in HCl 1 mol/l |
0,05 % |
| Loss on drying at 105°C |
0,2 % |
| Residue on ignition (as SO4) |
0,1 % |
| ABS at l260 nm 0,5 mol/l sol. in HCl 1 mol/l |
0,25 |
| ABS at l280 nm 0,5 mol/l sol. in HCl 1 mol/l |
0,2 |
| Chloride (Cl) |
0,01 % |
| Sulphate (SO4) |
0,01 % |
| Heavy metals (as Pb) |
0,001 % |
| As |
0,00015 % |
| Ca |
0,005 % |
| Cd |
0,0005 % |
| Co |
0,0005 % |
| Cr |
0,0005 % |
| Cu |
0,0005 % |
| Fe |
0,0005 % |
| K |
0,005 % |
| Mg |
0,005 % |
| Mn |
0,0005 % |
| Na |
0,01 % |
| Ni |
0,0005 % |
| Pb |
0,0005 % |
| Zn |
0,0005 % | |
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Weight |
Description |
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| GRR
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