L (+)-asparagin monohydrat ≥99.0% för biokemi pH 4.0 - 5.5 (20 g/l, H₂O, 20 °C), Millipore®
Leverantör: Merck
Synonyms:
L-Asparagine monohydrate, H-Asn-OH·H₂O, (S)-(+)-Asparagine monohydrate, (S)-2,4-Diamino-4-oxobutanoic acid hydrate, H-Asn-OH.H2O
M-Clarity™ quality level = MQ100
1.01566.0100
1.01566.1000
1.01566.9010
1.01566.0100EA
766
SEK
1.01566.0100
1.01566.1000
1.01566.9010
L (+)-asparagin monohydrat ≥99.0% för biokemi pH 4.0 - 5.5 (20 g/l, H₂O, 20 °C), Millipore®
L (+)-asparagin monohydrat
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Formel:
C₄H₈N₂O₃·1H₂O MW: 150,13 g/mol Smältpunkt: 215…217 °C Densitet: 1,567 g/cm³ (20 °C) Storage Temperature: Omgivande |
MDL Number:
MFCD00151038 CAS nummer: 5794-13-8 EINECS: 200-735-9 Merck Index: 14,00837 |
Specifikation testresultat
| Assay (perchloric acid titration, calculated on dried substance) | ≥ 99.0 % |
| 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 dried substance) | +33.7 to +36.0 |
| Chloride (Cl) | ≤ 0.02 % |
| Sulphate (SO₄) | ≤ 0.02 % |
| Heavy metals (as Pb) | ≤ 0.001 % |
| As (Arsenic) | ≤ 0.0005 % |
| Ca (Calcium) | ≤ 0.001 % |
| Co (Cobalt) | ≤ 0.0005 % |
| Fe (Iron) | ≤ 0.0005 % |
| K (Potassium) | ≤ 0.0005 % |
| Mg (Magnesium) | ≤ 0.0005 % |
| Na (Sodium) | ≤ 0.005 % |
| NH4 (Ammonium) | ≤ 0.01 % |
| Zn (Zinc) | ≤ 0.0005 % |
| Aspartic acid | ≤ 0.5 % |
| other foreign amino acids | ≤ 0.3 % |
| Other ninhydrine positive substances | ≤ 0.1 % |
| Loss on drying (130 °C, 3 h) | 10.5 - 12.5 % |
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