Stabilized ascorbic acid derivatives

Details Stabilized ascorbic acid derivatives Stabilized ascorbic acid derivatives

2007-05-29

2007-05-29

Seaman, Margaret D. (Department: 1625)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

C514S474000, C549S222000

Reexamination Certificate

active

10510756

ABSTRACT:
An ascorbic acid derivative, which is a compound represented by the following general formula (1) or a salt thereof: [Chemical Formula 11] (1)(wherein X and Y each represents H or a protective group for OH, R1and R2each represents an alkyl group having from 1 to 19 carbon atoms, which may be linear or branched, and the total number of carbon atoms in R1R2is an integer of 5 to 22).

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Chinese Office Action dated Jan. 20, 2006.

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