Detail of "302-76-1"

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Thermoanalytical and IR spectroscopic studies on several crystal forms of estradiol and androstane type drugs

Thermoanalytical and IR spectroscopic studies on several crystal forms of estradiol and androstane type drugs.Some chemicals with cas registry numbers like 6045-52-9 and 302-76-1 are also used. Part 1. Kuhnert-Brandstaetter, M.; Winkler, H. (Inst. Pharmakog., Univ. Innsbruck, Innsbruck, Austria). Sci. Pharm., 44(3), 177-90 (German) 1976. CODEN: SCPHA4. DOCUMENT TYPE: Journal CA Section: 63 (Pharmaceuticals) Section cross-reference(s): 75 Polymorphism and pseudoplymorphism in .alpha.-estradiol [57-91-0], .beta.-estradiol (I) [50-28-2], methylestradiol [302-76-1], estradiol Me ether [1035-77-4], and estradiol monopropionate [1323-33-7] were studied by thermomicroscopy, differential scanning calorimetry, and IR spectroscopy. I, methylestradiol and estradiol monopropionate formed very stable hydrates, and these compds. in the com. form exist as the hydrates. The affinity of these compds. for H2O was so great that they crystd. as the hydrates even from anhyd. org. solvents, with the atm. moisture being sufficient to cause conversion to the hydrates. Some new polymorphic modifications were also obsd. .