U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 562/43 - Nitrogen in the acyclic chain


Subclass of Class 562 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein the acyclic chain has nitrogen as a chain
No. of patents: 59
Last issue date: 08/26/2008


1    
NumberTitleIssue Date
7417164Fluorescent dyes for use in glucose sensing
A novel class of compounds that includes HPTS-Cys-MA, and methods of making them are disclosed herein. The class of compounds including HPTS-Cys-MA are useful as fluorescent dyes for analyte detection. ...
08/26/2008
7414076Methods and compositions for treating amyloid-related diseases
Methods, compounds, pharmaceutical compositions and kits are described for treating or preventing amyloid-related disease. ...
08/19/2008
7399577Halogenated oxime derivatives and the use thereof
Compounds of the formula (I) or (II) wherein R1 is C1-C10haloalkylsulfonyl, halobenzenesulfonyl, C2- C10haloalkanoyl, halobenzoyl; R2 is halogen or C1-C10 haloalkyl; Arl is pheny...
07/15/2008
7244764Methods and compositions for treating amyloid-related diseases
Methods, compounds, pharmaceutical compositions and kits are described for treating or preventing amyloid-+related disease. ...
07/17/2007
6943268Method for induction of L-selectin shedding
The invention provides anti-thiol reagents which inhibit enzyme activity of cell-associated protein disulfide isomerase (PDI) by oxidizing or blocking PDI active site vicinal thiol groups which normally participate in disulfide bond rearrangement of PDI substrates. ...
09/13/2005
6531628Substantive water-soluble 2-hydroxy sulfobetaines of cinnamidoalkylamines
Substantive UV-absorbing water-soluble 2-hydroxy sulfobetaine of cinnamidoalkylamines of Formula I. Hair, skin and fabric care compositions containing the compounds of Formula I. ##STR1## wherein, R1 is a substituent, selected from H, halo, --O...
03/11/2003
6153789Purification of aqueous dye solutions
The present invention provides a method of purifying an aqueous dye solution having an aldehyde and/or ketone impurity including a step of reacting the impurity with a hydrazine derivative, forming a water-insoluble hydrazone compound. The hydrazone compo...
11/28/2000
6147253N-protected/N-substituted-beta-amino-hydroxy sulfonates
N-protected/N-substituted alpha-amino aldehydes, which are useful as pharmaceuticals and pharmaceutical intermediates, can be stored and shipped in a more stable form as N-protected/N-substituted-beta-amino hydroxy sulfonates which can be readily converte...
11/14/2000
6011140Reactive azo dyes with an aminonaphthalenesulfonic acid coupling component and intermediates therefor
Reactive dyes of the formula ##STR1## where n is 1 or 2, G1 is hydrogen or hydroxyl, G2 is hydrogen or hydroxysulfonyl, G3 is hydrogen or arylazo, R1 is hydrogen or hydroxysulfonylmethyl, R2 is hydrogen or...
01/04/2000
5948939Selective amidination of diamines
An ω-guanidino-଱-amino-acid (or its functional derivative) or a compound containing it may be prepared by the reaction of the ω-amino group of an ଱,ω-diamino acid (or its functional derivative) or a compound containing it with a formamidine...
09/07/1999
5847201N-protected/N-substituted-beta-amino hydroxy sulfonates
N-protected/N-substituted alpha-amino aldehydes, which are useful as pharmaceuticals and pharmaceutical intermediates, can be stored and shipped in a more stable form as N-protected/N-substituted-beta-amino hydroxy sulfonates which can be readily converte...
12/08/1998
5817861Process for the preparation of an intermediate useful in the synthesis of iodinated contrast media
A process for the preparation of (S)-N,N'-bis›2-hydroxy-1-(hydroxymethyl)ethyl!-5-(2-acetoxy-propionylamino )-2,4,6-triiodo-isophthalamide, an intermediate useful for the synthesis of iopamidol, by reaction between L-5-(2-acetoxy-propionylamino)-2,4,...
10/06/1998
5789557Reactive azo dyes with a coupler of the aminonaphthalene series
Reactive dyes of the formula ##STR1## where n is 1 or 2, R1 is hydrogen or hydroxysulfonyl, R2 is hydrogen or hydroxyl, R3 is substituted C1 -C4 -alkyl, C5 -C7 -cycloalkyl or sub...
08/04/1998
5763610Composition and processes for treating subterranean formations
A composition comprising a nitrogen-containing olefinic compound and a process for using the nitrogen-containing olefinic compound to produce a water-soluble polymer which has applications in a subterranean formation are provided. The nitrogen-containing ...
06/09/1998
5686492Disubstituted p-fluorobenzenesulfonamides
Described herein are disubstituted p-fluorobenzenesulfonamides, containing a CF3 group, of general formula I ##STR1## which are suitable as NMR diagnostic agents....
11/11/1997
5326906Process for the extractive removal of phospho- and sulfobetaines from acidic reaction solutions
The ampholytes are extracted from the reaction solution with a liquid cation exchanger which is immiscible with the acidic aqueous reaction solution, where the cation exchanger is dissolved in at least one organic solvent which is immiscible with water an...
07/05/1994
5264622Water-soluble methylenebis(dialkylaniline) derivatives and application thereof
Novel water-soluble methylenebis(dialkylaniline) derivatives of the following general formula and salts thereof are disclosed. They are useful as dye-forming substances in quantitative determination of peroxides in the copresence of peroxidase or the like...
11/23/1993
5120872Compounds containing a 3-sulfoalkanoylamino or 3-sulfoalylsulfonylaminoaniline coupling component
A compound of the formula ##STR1## in which R1 and R2 independently of one another are each C1 -C10 alkyl which is unsubstituted or substituted by hydroxyl, C1 -C4 alkoxy, phenyl, sulf...
06/09/1992
5110985Process for preparing carboxyalkyl-substituted hydroxylamine
A process for preparing a carboxyalkyl-substituted hydroxylamine represented by formula (I) ##STR1## where L represents an alkylene group; A represents a hydrogen atom, a sulfo group, a carboxy group, a phosphono group, a trialkylammonio group, ...
05/05/1992
5026905Fluorescent dyes
The present invention describes a class of dyes for use in staining cell samples and methods of making such dyes. A preferred class of dyes known as detergent dyes which possess the ability to stain cells in whole blood and are only slowly leached or lost...
06/25/1991
4985595Aminobenzamide derivatives
Aminobenzamide derivatives of the formula (I) ##STR1## wherein: R1 and R2 each represents a lower alkoxy group, R3 represents a hydrogen atom, a lower alkyl group, a lower acyl group, a lower alkoxycarbonyl group or --R
01/15/1991
4978781Low-foam alkali-stable amphoteric surface active agents
The present invention relates to low-foam alkali-stable surface active agents which are amphoteric. The subject materials are hydroxypropyl sultaines....
12/18/1990
4898944Precursors for the preparation of water-soluble triphendioxazine dyestuffs
Precursors for the preparation of fiber-reactive triphendioxazine dyestuffs correspond to the general formulas: ##STR1## in which Y' is a vinyl, a beta-hydroxyethyl or an ethyl group which contains in the beta-position a substituent which can be elim...
02/06/1990
4891159Low-foam alkali-stable amphoteric surface active agents
Novel surface active agents of the formula: ##STR1## wherein R is selected from the group consisting of alkyl, aryl, alkylaryl groups of 2-18 carbons and alkoxymethyl wherein the alkoxy group is of 2-18 carbon atoms, R2 and R3 a...
01/02/1990
4837330Preparation of sulfatobetaines
Sulfatobetaines are prepared by reacting an adduct of a base having a tertiary N atom and sulfur trioxide with an alkylene oxide in the presence of an alkylene carbonate as a solvent....
06/06/1989
4781866Process for producing amidine sulfonic acid intermediates for guanidines
An efficient synthesis of quanidines, e.g. of the formula (III), by oxidizing a thiourea, e.g. of the following formula (II): ##STR1## with H2 O2 and a molybdenum catalyst to yield an aminoiminomethane sulfonic acid which can th...
11/01/1988
4704229Surface-active compounds of the sulfobetaines family, their manufacture and use, particularly for enhanced oil recovery
New surface-active compounds of the sulfobetaines group are manufactured. They comply with the general formula: ##STR1## wherein each of R1, R2 and R3 is substantially a hydrocarbon radical, each of R4 and ...
11/03/1987
4693850Methane sulfonic acid derivatives
Novel synthetic steps and intermediates leading to guanidines such as the anti-diabetic compound linogliride. Included is a hydrogen peroxide oxidation of a thiourea (II) to a sulfonic acid (I) which may then be reacted with morpholine to form the carboxi...
09/15/1987
4656270Process for producing guanidines such as linogliride
Novel synthetic steps and intermediates leading to guanidines such as the anti-diabetic compound linogliride. Included is a hydrogen peroxide oxidation of a thiourea (II) to a sulfonic acid (I) which may then be reacted with morpholine to form the carboxi...
04/07/1987
4656291Process for producing amidine sulfonic acids
An efficient synthesis of quanidines, e.g. of the formula (III), by oxidizing a thiourea, e.g. of the following formula (II): ##STR1## with H2 O2 and a molybdenum catalyst to yield an aminoiminomethane sulfonic acid which can th...
04/07/1987
4588435N-substituted amino propane sulfonic acid derivatives and plant growth regulating use
The invention relates to new N-substituted amino propane sulfonic acid derivatives of the Formula I ##STR1## and salts and hydrates thereof, a process for the preparation thereof and plant growth regulating agents comprising the same wherein R1
05/13/1986
4562249Bis(4-((chloro substituted phenyl)azo)anilino methylenes
There are described novel yellow to red azo compounds of the formula I ##STR1## wherein each D independently of the other is the radical of an aromatic or heterocyclic diazo component, each Z independently of the other is hydrogen or a C1 ...
12/31/1985
4543216Polymerizable amino acid compounds and their production
A polymerizable amino acid compound of the formula: ##STR1## wherein R1, R2 and R3 are each hydrogen or methyl, R4 is C1 -C20 alkyl optionally bearing at least one hydroxyl and optiona...
09/24/1985
4536314Bleach compositions comprising non-linear aliphatic peroxycarboxylic acid precursors
Detergent compositions, detergent additive products and bleaching compositions containing aliphatic peroxyacid bleach precursors of formula ##STR1## are provided, where L is a leaving group of defined formula whose conjugate acid has a pKa of from 6 ...
08/20/1985
4521619Therapeutically useful sulphur-containing benzylidene derivatives
Benzylidene derivatives of the formula: ##STR1## wherein n represents an integer from 1 through 4, R represents an amino radical, a monoalkylamino group containing 1 through 4 carbon atoms in the alkyl radical, a dialkylamino group containing 1 throu...
06/04/1985
4507446Water-soluble or water-dispersible resinous sulphur or phosphorus containing salts, their preparation, and their use in coatings
Water-soluble or water-dispersible resinous salts are prepared by `tipping` an epoxy resin with a phenol, then carrying out a Mannich reaction with an aldehyde (usually formaldehyde) and an aminosulfonic or aminophosphonic acid, followed by salt formation...
03/26/1985
4499272NH4+ Or group IA metal 2,7-dimethyl-1,2,3-tetrahydro-ଲ-hydroxy-1-quinolinepropanesulfonate s
2-Hydroxy-3-halo-1-propanesulfonates are reacted with certain arylamines, preferably in the presence of a base such as KOH or NaOH in one or more of ethylene glycol, propylene glycol, 2-ethoxyethanol and the like to give 2-hydroxy-3-(arylamino)-1-propanes...
02/12/1985
4452746Polymerizable amino acid compounds and their production
A polymerizable amino acid compound of the formula: ##STR1## wherein R1, R2 and R3 are each hydrogen or methyl, R4 is C1 -C20 alkyl optionally bearing at least one hydroxyl and optiona...
06/05/1984
44144144,4'-Dithiodianil
Novel 4,4'-dithiodianil compounds are prepared by reacting 4,4'-dithiodianiline with an aromatic or pyridine aldehyde, such as 4-nitrobenzaldehyde. The novel dithiodianil compounds can be employed for detecting thiol compounds. They react with thiols to y...
11/08/1983
4396714N-Sulfoalkylaniline derivatives
N-sulfoalkylaniline derivatives in which at least one sulfoalkyl of 2 to 4 carbon atoms is attached to the nitrogen atom which are useful as dyestuff forming substances, a composition for determining the presence of peroxides using such compounds and the ...
08/02/1983
1    
 
Sign InRegister
Username  
Password   
forgot password?