D-(-)-Isoascorbic acid 98%
Dostawca: Thermo Fisher Scientific
Synonim:
Erythorbic acid, (R)-5-((R)-1,2-Dihydroxyethyl)-3,4-dihydroxyfuran-2(5H)-one, D-Isoascorbic acid
227275000
227270025
ACRO227275000EA
240
PLN
ACRO227275000
ACRO227270025
D-(-)-Isoascorbic acid 98%
D-(-)-Isoascorbic acid
Formuła:
C₆H₈O₆ MW: 176.12 g/mol Temp. topnienia: 167…172 °C Temperatura przechowywania: Temperatura otoczenia |
Numer MDL:
MFCD00005378 Numer CAS: 89-65-6 Numer WE (dawny EINECS): 201-928-0 |
Wyniki testów specyfikacyjnych
Appearance | White to light yellow Crystalline powder or crystals |
Infrared spectrum | Conforms |
Melting point | 164 to 172 °C |
Titration Iodimetric | ≥97.5 % |
Loss on drying | ≤0.4 % |
Sulfated ash | ≤0.3 % |
Specific optical rotation | -16.5° to -18° (25 °C, 589 nm) (c=10, water) |
Lead (Pb) | ≤10 ppm |
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