Ninhydrine, Qualité spectrophotométrique
Marques : Thermo ScientificTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
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Attention
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Synonyme(s):
Indanetrione hydraté
Formule:
C₉H₆O₄ Poids moléculaire: 178,14 g/mol Point de fusion: 250 °C (déc.) Température de stockage: Température ambiante |
Numéro MDL:
MFCD00003791 Numéro CAS: 485-47-2 EINECS: 207-618-1 Indice Merck: 13,06582 |
Résultats des tests de spécification
Appearance | White to light yellow Crystalline powder or crystals |
Infrared spectrum | Conforms |
Sulfated ash | ≤0.1 % |
pH | 4.0 to 5.6 (1 % in water) |
Suitability | (for amino acid analysis) Passes test |
Specific optical rotation | +13.5° to +15.5° (20°C, 589 nm) (c=10, 6 N HCl) (dried substance) |
Titration with HClO4 | 98.5 to 101.0 % (dried substance) |
Sulfates | ≤300 ppm |
Chlorides | ≤200 ppm |
Ammonium (NH4) | ≤200 ppm |
Iron (Fe) | ≤10 ppm |
Ninhydrin-positive substances | ≤0.10 % (Any ninhydrin-positive substance) |
Ninhydrin-positive substances | ≤0.5 % (Total) |
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