D-(+)-DIGITOXOSE
D-(+)-DIGITOXOSE
- CAS:
- 527-52-6
- MF:
- C6H12O4
- MW:
- 148.16
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Properties
- Melting point:
- 98-100 °C
- Boiling point:
- 188.74°C (rough estimate)
- alpha
- D17 +46.3° (in water); D20 +39.1° (in methanol); D18 +27.9° +43.3° (after 24 hrs in pyridine)
- Density
- 1.0610 (rough estimate)
- refractive index
- 1.4320 (estimate)
- storage temp.
- Refrigerator
- solubility
- DMSO (Slightly), Methanol (Slightly), Water (Slightly)
- form
- Solid
- pka
- 13.72±0.20(Predicted)
- color
- White to Pale Yellow
Safety Information
Use
Crystallise D(+)-digitoxose from MeOH/Et2O, Et2O, EtOAc, EtOAc/Et2O/pet ether or Me2CO/Et2O and dry it over P2O5/vacuum. It has [] D +45.2o (6minutes) mutarotating to +50.2o (16hours constant) (c 1.65, H2O). [Gut & Prins Helv Chim Acta 20 1229 1947, Bollinger & Ulrich Helv Chim Acta 35 93 1952, NMR of derivs: Tsukamoto et al. J Chem Soc, Perkin Trans 1 2621 1988, Beilstein 1 IV 4191.]
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