L-Alanina 99%, meets analytical specification of Ph.Eur.
Fornitore: Thermo Fisher Scientific
Synonyms:
(S)-(+)-Alanine, H-Ala-OH, L(+)-Alanine, Alanine, L-α-Alanine, A, H-L-Ala-OH, α-Alanine
Formula:
C₃H₇NO₂ Peso molecolare: 89.09 g/mol Punto di ebollizione: 189 Punto di fusione: 314…316 °C (dec.) Temperatura di stoccaggio: Ambiente |
MDL Number:
MFCD00064410 CAS Number: 56-41-7 Merck Index: 13,00203 |
Risultati del test di specificazione
Appearance | Colorless to white to almost white Crystals or crystalline powder |
Infrared spectrum | Conforms |
Loss on drying | ≤0.5 % (1 g, 105°C) |
Sulfated ash | ≤0.1 % (1 g, 600°C) |
Appearance of solution | Clear and not more intensely colored than reference solution BY6 |
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 | ≤0.5 % (Total) |
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