L(+)-Weinsäure Ph. Eur.
Lieferant: Thermo Scientific
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Gefahr
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Synonyme:
(R,R)-(+)-2,3-Dihydroxybutandisäure, (R,R)-(+)-2,3-Dihydroxy-1,4-butandisäure, L(+)-Threarsäure, natürliche Weinsäure, (R,R)-(+)-2,3-Dihydroxysuccinsäure, (R,R)-(+)-Weinsäure, (R,R)-(+)-2,3-Dihydroxybernsteinsäure
388280010
ACRO388280010EA
78.1
EUR
ACRO388280010
L(+)-Weinsäure Ph. Eur.
L(+)-Weinsäure
Formel:
C₄H₆O₆ Molecular Weight: 150,09 g/mol Siedepunkt: 399 °C (1013 hPa) Schmelzpunkt: 168…172 °C Dichte: 1,759 g/cm³ (20 °C) Flammpunkt: 210 °C (geschlossener Tiegel) Lagertemperatur: Raumtemperatur |
MDL:
MFCD00064207 CAS-Nummer: 87-69-4 |
Spezifikation Testergebnisse
Appearance | Colorless to white to almost white Crystalline powder or crystals |
Loss on drying | ≤0.2 % (1 g, 105°C) |
Sulfated ash | ≤0.1 % (1 g) |
Appearance of solution | (5 g in 50 ml water) clear and not more intensely colored than ref. soln. Y6 |
Identification A | Passes test |
Identification B | Passes test |
Specific optical rotation | +12.0° to +12.8° (20°C, 589 nm) (c=20, H2O) (on dried substance) |
Titration with NaOH | 99.5 to 101.0 % (on dried substance) |
Sulfates | ≤150 ppm |
Chlorides | ≤100 ppm |
Calcium (Ca) | ≤200 ppm |
Impurity | ≤350 ppm (as anhydrous oxalic acid) |
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