[Studies on the stability of vitamin D2 powder preparations. IV. Isomerization of vitamin D2 and related compounds catalyzed by surface acid on excipients, and active site for catalytic reactions].
D000143:Acids; D002384:Catalysis; D002626:Chemistry, Pharmaceutical; D004355:Drug Stability; D004872:Ergocalciferols; D010592:Pharmaceutic Aids; D011208:Powders; D013053:Spectrophotometry
D000143:Acids; D004872:Ergocalciferols; D010592:Pharmaceutic Aids; D011208:Powders