The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 1991
Filed:
Jan. 29, 1990
Tetsuo Shiba, Osaka, JP;
Daiichi Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
Disaccharide derivatives represented by the formula (I): ##STR1## wherein R.sup.1 CO-- and R.sup.2 CO-- each represents a residue of a straight chain fatty acid having from 8 to 20 carbon atoms and having a hydroxyl group at the 3-position thereof; R.sup.3 CO-- and R.sup.4 CO-- each represents a residue of a straight chain fatty acid having from 8 to 20 carbon atoms; and m and n each represents an integer of from 8 to 12, and the salts thereof. The compounds exhibit biological activities equal to or higher than those of natural lipid A. Also, the compounds of this invention are very useful as standard reagent for determination of endotoxin in the samples to be tested.