Incompatibilities in prescriptions. III. The use of inert powders in capsules to prevent liquefaction due to formation of a eutectic mixture*,†
✍ Scribed by Husa, William J. ;Becker, Charles H.
- Book ID
- 102917709
- Publisher
- Elsevier
- Year
- 1940
- Weight
- 680 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0095-9553
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✦ Synopsis
These crystals were removed from the noncrystalline portion by stirring with Skelly-solve B in which the latter was readily soluble. The crystalline portion was removed by a suction filter. This material when purified by several recrystallizations from a mixture of alcohol and ether, gave rosettes of needles. The crystals melted at 175" C. and its acetate a t 195" C. The free alcohol gave a rose to rose purple and finally a deep purple when subjected to the Lieberman-Burchard test for sterols.
Resin Alcohol No. 3.-Prolonged extraction of the nonsaponifiable portion with Skelly-solve B gave a very small amount of material which crystallized in rosettes of needles from the concentrated extract. Several crystallizations from alcohol and ether gave rosettes of platelets. These crystals although appearing to be very pure gave a very indefinite melting point. They appeared to soften a t about 220" C. and liquefied a t 235' C.
These crystals gave a pink to orange to a redorange with the Lieberman-Burchard reagent. The amount of material was too small to warrant the preparation of a derivative or further investigation.
SUMMARY
A phytosterol, apparently one of the sitosterols or a mixture of sterols, and three resin alcohols were isolated from the nonsaponifiable portion of the petroleum ether extract of the outer bark of the root of Cekzstrus Scandens.
REFERENCES
(1) Z. physiol Chem., 65 (1910), 110.
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