Plural Sulfonyl Groups Bonded Directly To The Same Bicyclo Ring System Patents (Class 534/884)
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Patent number: 8420402Abstract: The present invention is generally directed to thiol quantitation assays, methods of performing the assays, and compounds used in the assays. It is more specifically directed to assays that include one or more disulfides and related molecules and methods. The disulfides contain a FRET pair.Type: GrantFiled: January 27, 2012Date of Patent: April 16, 2013Assignee: AnaSpec IncorporatedInventors: Jianjun He, Anita Hong, Qingheng Wang, Raman Khosrow Afshar, Ming Zhu, Vera Rakhmanova
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Publication number: 20130078186Abstract: The present invention relates to compounds suitable as modulators of protein misfolding and/or protein aggregation. The compounds are particularly suitable as inhibitors of amyloid aggregate formation and/or modulators of amyloid surface properties, and/or as activators of degradation or reduction of amyloid aggregates.Type: ApplicationFiled: March 23, 2011Publication date: March 28, 2013Applicant: MAX-DELBRUECK-CENTRUM FUER MOLEKULARE MEDIZINInventors: Erich Wanker, Thomas Wiglenda, Julius Tachu Babila, Annett Boeddrich, Michael Schmidt, Franziska Schiele
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Patent number: 7276268Abstract: Poly-azo compound selected from the group consisting compounds of the formula (I) and compounds of the formula (II), (wherein, Me represents copper, nickel, zinc or iron, A represents a naphthyl group having 1 to 3 sulfonic groups and further optionally having an alkyl group or alkoxy group, R1 and R2 represent each independently a hydrogen atom, alkyl group or alkoxy group, and R3 represents an amino group or hydroxyl group.).Type: GrantFiled: November 12, 2004Date of Patent: October 2, 2007Assignee: Sumitomo Chemical Company, LimitedInventors: Toru Ashida, Narutoshi Hayashi
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Patent number: 6599748Abstract: A hardness indicator composition, and a method of water hardness analysis, capable of measuring hardness even with higher-hardness water without requiring titration by a two-liquid system. The hardness indicator composition is formulated of a metal indicator with a desensitizer added thereto.Type: GrantFiled: November 21, 2000Date of Patent: July 29, 2003Assignees: Miura Co., Ltd., Miura Institute of Research & Development Co. Ltd.Inventors: Junichi Nakajima, Keita Mizogami, Yuuji Ukena
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Patent number: 5245021Abstract: Named compounds are useful in making dry analytical elements for assaying lithium in serum. The compounds have the general structure: ##STR1## wherein R, R.sub.1, R.sub.2 and X are as presented below:______________________________________ R R.sub.1 R.sub.2 X ______________________________________ n-C.sub.12 H.sub.25 SO.sub.2 CH.sub.3 CH.sub.3 CH n-C.sub.12 H.sub.25 NO.sub.2 CH.sub.3 CH CH.sub.3 SO.sub.2 N(n-C.sub.6 H.sub.13).sub.2 CH.sub.3 CH CH.sub.2 C.sub.6 H.sub.5 SO.sub.2 N(n-C.sub.6 H.sub.13).sub.2 CH.sub.3 CH CH.sub.2 C.sub.6 H.sub.5 SO.sub.2 N(CH.sub.3)-n-C.sub.18 H.sub.37 CH.sub.3 CH CH.sub.3 NO.sub.2 n-C.sub.7 H.sub.15 CH n-C.sub.12 H.sub.25 H CH.sub.Type: GrantFiled: May 28, 1991Date of Patent: September 14, 1993Assignee: Eastman Kodak CompanyInventors: Ronald H. Engebrecht, Thomas R. Welter
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Patent number: 4906739Abstract: A fibre-reactive azo dyestuff of the formula ##STR1## in which X is alkyl or alkoxy with 1 to 4 carbon atoms, carboxyl or halogen, n is 1, 2 or 3, m is 0 or 1, p is 0 or 1 and q is 0 or 1 and the benzene or naphthalene rings A, B and B' can contain further substituents in addition to SO.sub.3 H groups. The dyestuffs of the invention are suitable inter alia, for dyeing and printing silk, leather, wool, high molecular weight polyamide fibres and high molecular weight polyurethanes, but especially cellulose-containing materials having a fibrous structure.Type: GrantFiled: June 15, 1989Date of Patent: March 6, 1990Assignee: Ciba-Geigy CorporationInventors: Herbert Seiler, Gert Hegar
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Patent number: 4686286Abstract: A disazo reaction dyestuff for cellulose fibers which is of the formula: ##STR1## wherein D is a residue of a monoazo dye, R.sup.1 is hydrogen or lower alkyl, and X is a group: ##STR2## wherein R.sup.2 and R.sup.3 are each hydrogen, methyl, methoxy or --SO.sub.3 M, Y is an aromatic or aliphatic divalent residue and M is hydrogen or an alkali metal.Type: GrantFiled: May 17, 1985Date of Patent: August 11, 1987Assignee: Mitsubishi Chemical Industries LimitedInventors: Toshio Niwa, Yoshiaki Katoh
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Patent number: 4675389Abstract: Physiologically acceptable cation salts of (2-alkoxy-4-sulfonyl-5-alkylphenyl)azo-1-hydroxynaphthalene sulfonic acids useful as blue-red colorants for textile fabrics, cellulosic fibers and edible compositions are prepared by diazotizing 2-alkoxy-4-sulfonyl-5-alkylanilines and coupling the resulting diazo compounds to a 1-hydroxynaphthalene mono- or disulfonic acid.Type: GrantFiled: June 5, 1984Date of Patent: June 23, 1987Assignee: The Hilton-Davis Chemical Co.Inventors: Wayne L. Cook, Robert P. Huth
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Patent number: 4560746Abstract: The disodium salt of 1-[(6-methoxy-4-sulfo-3-methylphenyl)azo]-2-naphthol-6-sulfonic acid (FD and C Red 40), the disodium salt of 1-[(4-sulfophenyl)azo]-2-naphthol-6-sulfonic acid (FD and C Yellow 6), the trisodium salt of 1-[1-(4-sulfonaphthyl)azo]-2-naphthol-3,6-disulfonic acid (FD and C Red 2), the disodium salt of 2-[1-(4-sulfonaphthyl)azo]-1-naphthol-4-sulfonic acid (Carmoisine) and the sodium salt of 2-(2-quinolyl)-1,3-indanedione-sulfonic acid (D and C Yellow 10) are prepared and purified in high yield and in a high state of purity by subjecting their aqueous reaction mixtures to ultrafiltration through a membrane of such structure and under such conditions that the impurities are separated from the reaction mixtures, and the products are concentrated in high purity concentrates from which the products can be isolated directly by evaporation of the solvent.Type: GrantFiled: November 30, 1984Date of Patent: December 24, 1985Assignee: The Hilton-Davis Chemical Co.Inventors: Robert W. J. Rebhahn, Wayne L. Cook
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Patent number: 4542208Abstract: Water-soluble azo compounds which, in the free acid form, are represented by the formula: ##STR1## wherein one of X and Y is hydrogen and the other is --SO.sub.3 H; one of A and B is hydrogen and the other is --SO.sub.3 H; each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is independently hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, acylamino group or ureido group; and each of R.sub.5 and R.sub.6 is independently hydrogen, methyl group, ethyl group, methoxy group, ethoxy group, acylamino group, chlorine, hydroxyl group or carboxyl group, and a method for dyeing cellulose fibers, blended yarn fabrics of cellulose fibers with other kinds of fibers, particularly with polyester fibers, using the said compounds.Type: GrantFiled: October 6, 1983Date of Patent: September 17, 1985Assignee: Nippon Kayaku Kabushiki KaishaInventors: Junji Odani, Shigeyuki Watanabe
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Patent number: 4486347Abstract: The halogenated azo dyestuffs of the present invention possess fire-proofing and antimicrobial properties and have the following general formula: ##STR1##Type: GrantFiled: January 22, 1982Date of Patent: December 4, 1984Assignee: Tsentralny Nauchnoissledovatelsky Institut SherstiInventors: Irina N. Gorbacheva, Ljudmila M. Sukhova, Zinaida J. Kozinda, Vladislav L. Molokov, Lev T. Antonov, Vadim D. Simonov, Viktor A. Chertov, Semen I. Dvoskin, Raisa S. Veseneva