Amphoteric sterols and the use thereof

Details Amphoteric sterols and the use thereof Amphoteric sterols and the use thereof

2002-02-21

2008-08-05

Badio, Barbara P (Department: 1612)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Cyclopentanohydrophenanthrene ring system doai

C540S107000, C540S108000, C540S113000, C435S320100, C424S450000

Reexamination Certificate

active

07407947

ABSTRACT:
An amphoteric compound based on a sterol skeleton, the 3-position of the sterol ring system being substituted by one or more amphoteric groups having an isoelectric point of between about 4 and 9, together with liposomes containing such compounds and their uses.

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