.alpha.-THF 3.alpha.,5.alpha.-Tetrahydrocortisol 302-91-0 5.alpha.-Pregnan-20-one, 3.alpha.,11.beta.,17,21-tetrahydroxy- 5.alpha.-Tetrahydrocortisol ATHF Allo-Tetrahydrocortisol Allocortisol, tetrahydro- Allopregnane-3.alpha.,11.beta.,17.alpha.,21-tetrol-20-one Allotetrahydrocompound F Allotetrahydrocortisol Compound F, allotetrahydro- Cortisol, allotetrahydro- Kendall's compound C NSC86469 Pregnan-20-one, 3,11,17,21-tetrahydroxy-, (3.alpha.,5.alpha.,11.beta.)- Reichstein's substance C Tetrahydroallocortisol Wintersteiner's compound D allo-3.alpha.-Tetrahydrocortisol