| Patents for C07C 309 - Sulfonic acids; Halides, esters, or anhydrides thereof (15,484) | 
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| 07/18/2012 | CN102584641A Process for preparing alkylphenol formaldehyde oligomer sulfonate | 
| 07/18/2012 | CN102584509A Preparation method of amide | 
| 07/18/2012 | CN101880248B Synthetic reaction of calcium dobesilate hydrate | 
| 07/18/2012 | CN101723858B Method for preparing benzenesulfonic acid | 
| 07/18/2012 | CN101265218B Method for preparing SIPE from SIPA by direct esterification method | 
| 07/18/2012 | CN101085753B Fluorosulfates of hexafluoroisobutylene and its higher homologs and their derivatives | 
| 07/17/2012 | US8222455 Polycationic viscoelastic compositions | 
| 07/12/2012 | US20120178747 Compositions and methods for bone formation and remodeling | 
| 07/11/2012 | EP2474527A1 Ionic liquid containing allylsulfonate anion | 
| 07/11/2012 | CN202322675U 2-丙烯酰胺-2-甲基丙磺酸连续合成反应装置 2-acrylamido-2-methylpropanesulfonic acid synthesis reaction apparatus continuously | 
| 07/11/2012 | CN1495189B Preparation method of phosphite ester and transition metal complex | 
| 07/11/2012 | CN102575329A Method for handling aqueous methanesulfonic acid solutions | 
| 07/11/2012 | CN102558034A Organic three-order nonlinear optical material 4-(4-dimethylaminostyryl) methylpyridine trifluorosulfonate and synthesizing method thereof | 
| 07/11/2012 | CN102557993A Preparation method of oxidant as well as doping agent for synthesizing conductive high polymer | 
| 07/11/2012 | CN102557992A Salt-resistant type high activity alkyl benzene sulfonate and preparing method thereof | 
| 07/11/2012 | CN101085752B Fluorosulfates of hexafluoroisobutylene and its higher homologs and their derivatives | 
| 07/10/2012 | CA2527809C Isotopically labeled chemically stable reagents and process for the synthesis thereof | 
| 07/05/2012 | WO2012090959A1 Radiation-sensitive resin composition and compound | 
| 07/05/2012 | US20120172606 Sulfonium compound, photo-acid generator, and method for manufacturing the same | 
| 07/05/2012 | US20120172589 Process for the synthesis of ivabradine and addition salts thereof with a pharmaceutically acceptable acid | 
| 07/05/2012 | US20120172229 Monoalkyl sulfosuccinates in pesticide formulations and applications | 
| 07/05/2012 | US20120172227 5-aminolevulinic acid salt, process for producing the same and use thereof | 
| 07/04/2012 | EP2472323A2 Polymerizable photoacid generators | 
| 07/04/2012 | EP2472322A2 Photoacid generating monomer and precursor thereof | 
| 07/04/2012 | EP2472321A1 Method of preparing photoacid-generating monomer | 
| 07/04/2012 | EP1942102B1 Process for producing trifluoromethanesulfonic anhydride | 
| 07/04/2012 | CN202297427U 一种磺酸母液脱水回收系统 One kind of acid liquor recovery system dehydration | 
| 07/04/2012 | CN202289814U 一种高效回收三氧化硫的磺化系统 An efficient recovery of sulfur trioxide sulfonated system | 
| 07/04/2012 | CN1942978B Mixture, cation conductor and electrochemical device using those | 
| 07/04/2012 | CN102531975A Synthetic method of 2-(p-p-nitrophenylazo)-1-naphthol-3, 6-disodium disulfonate | 
| 07/04/2012 | CN102531974A Preparation method of guanidinotaurine | 
| 07/04/2012 | CN102531973A Method for preparing fatty acid ester sulfonate powder | 
| 07/04/2012 | CN102531972A Preparation method of intermediate of antitumor medicament Belinostat | 
| 07/04/2012 | CN102531955A Preparation method of olsalazine disodium and postprocessing method of methyl sulfonation reaction | 
| 07/04/2012 | CN102531949A Substituted benzamide compounds and preparation method and application thereof | 
| 07/04/2012 | CN102527299A Sulfonation reaction device and application thereof | 
| 07/04/2012 | CN102070778B Method for preparing high-concentration polyoxy alkyl allyl ether sulfonate | 
| 07/04/2012 | CN101362711B High consistency and high purity aqueous solutions of betaine preparation method | 
| 07/04/2012 | CN101161639B Solid acid, polymer electrolyte membrane including the same, and fuel cell using the polymer electrolyte membrane | 
| 07/04/2012 | CN101155893B Absorption cycle utilizing ionic liquid as working fluid | 
| 07/03/2012 | US8212065 Method for the production of optically active alpha alkyl carbonyl compounds | 
| 07/03/2012 | US8211949 Functionalized long-chain olefin mixtures and uses therefor | 
| 06/28/2012 | WO2012085645A1 Polymorphs of 3-chloro-4[(2r)-2 | 
| 06/28/2012 | WO2012084831A1 Purification of precursor compound by crystallisation | 
| 06/28/2012 | WO2012084794A1 Process simplification for precursor compound | 
| 06/28/2012 | WO2012084118A1 Derivatives of perfluoroalkoxy sulfosuccinates as surface-active surfactants | 
| 06/28/2012 | US20120164582 Radiation-sensitive composition and compound | 
| 06/28/2012 | US20120164580 Novel compound and method of producing the same, acid generator, resist composition and method of forming resist pattern | 
| 06/28/2012 | US20120164558 Biphenyltetrasulfonic acid compound, method for producing same, polymer and polymer electrolyte | 
| 06/28/2012 | CA2822767A1 Polymorphs of 3-chloro-4[(2r)-2-(4-chlorophenyl)-4-[(1r)-1-(4-cyanophenyl)ethyl]-1-piperazinyl]-benzonitrile, pharmaceutical compositions and method of use comprising said polymorphs, and a process for preparing them | 
| 06/28/2012 | CA2821951A1 Purification of precursor compound by crystallisation | 
| 06/28/2012 | CA2819088A1 Process simplification for precursor compound | 
| 06/27/2012 | EP2468712A1 Method for producing and purifying 3-aminopropanol | 
| 06/27/2012 | CN102516970A Modified lycine ampholytic surfactant for tertiary oil recovery and preparation method thereof | 
| 06/27/2012 | CN102516525A Method for preparing phosphorus-free corrosion-inhibition scale inhibitor in high-elevation region and application of the phosphorus-free corrosion-inhibition scale inhibitor | 
| 06/27/2012 | CN102516141A Labeling method for hydroxytamine transporter imaging agent [<18>F]-FPBM | 
| 06/27/2012 | CN102516137A Production method of 2, | 
| 06/27/2012 | CN102516136A Method for preparing 4,4 '- diaminostilbene- 2,2' - disulfonic acid by using DNS sodium salt(4,4 '- dinitrostilbene-2,2' - disulfonic acid sodium salt) | 
| 06/27/2012 | CN102516135A Method for preparing tin methanesulfonate through using methanesulfonyl chloride | 
| 06/27/2012 | CN102516133A Preparation method of methanesulfonic acid derivative | 
| 06/27/2012 | CN102516132A Production method for sulfonic acid curing agent used for casting | 
| 06/27/2012 | CN102516076A Method for preparing saturated palmitic acid methyl ester and fatty acid methyl ester sulfonate from palm tristearin | 
| 06/27/2012 | CN102515387A Method for treating organic wastewater | 
| 06/27/2012 | CN102515384A Technology for turning wastewater of melamine resin production into resource | 
| 06/27/2012 | CN102134181B Nicosulfuron production wastewater pretreatment method | 
| 06/27/2012 | CN101955580B Plasticizer for improving polylactic acid by mixing with polylactic acid and preparation method thereof | 
| 06/27/2012 | CN101717353B Synthesis method of taurine | 
| 06/27/2012 | CN101492399B Method for preparing methylpropene sodium sulfonate | 
| 06/26/2012 | US8206890 Resist composition, method of forming resist pattern, compound and acid generator | 
| 06/26/2012 | CA2602362C Benzoic acid ester compounds, compositions, uses and methods related thereto | 
| 06/21/2012 | WO2012082718A2 3-methanesulfonylpropionitrile for treating inflammation and pain | 
| 06/21/2012 | WO2012080233A1 Method for producing and purifying 3-aminopropanol | 
| 06/21/2012 | WO2012052939A3 Preparation of bicyclo[2.2.2]octan-2-one compounds | 
| 06/21/2012 | US20120157680 Ionic liquid containing allylsulfonate anion | 
| 06/21/2012 | CA2820625A1 3-methanesulfonylpropionitrile for treating inflammation and pain | 
| 06/21/2012 | CA2817365A1 Process and intermediates for preparing macrolactams | 
| 06/20/2012 | EP2465844A1 Method for producing and purifying 3-aminopropanol | 
| 06/20/2012 | EP2464626A1 Methods, compounds, and compositions for delivering 1,3-propan ed isulfonic acid | 
| 06/20/2012 | CN102510856A 芳香族锍盐化合物 The aromatic sulfonium salt compound | 
| 06/20/2012 | CN102504247A Hyperbranched polymer, hyperbranched polycarboxylic acid-series super plasticizer and preparation method thereof | 
| 06/20/2012 | CN102503912A High epoxide number environment-friendly plasticizer production process | 
| 06/20/2012 | CN102503866A Method for preparing sodium fatty acid methyl ester sulfonate with low content of disodium salt | 
| 06/20/2012 | CN102503865A Method for recycling sulfur trioxide and efficiently producing sulfonic acid | 
| 06/20/2012 | CN102503864A Method for synthesizing low-salt fatty acid amide propyl hydroxy sulfobetaine | 
| 06/20/2012 | CN102503863A Dialkyl ether disulfonate surfactant and preparation method thereof | 
| 06/20/2012 | CN102503754A Synthesis method for trans-form amantadine compound | 
| 06/20/2012 | CN102500395A TiO2-loaded Ni-Au-Pt nanometer composite metal catalyst and preparation method and application | 
| 06/20/2012 | CN101555212B Synthesized micromolecule compound capable of conveying bioactivator and application thereof | 
| 06/20/2012 | CN101395196B Polyarylene and method for producing the same | 
| 06/20/2012 | CN101341183B Polyarylene and method for producing the same | 
| 06/19/2012 | US8202731 HPTS-mono and bis Cys-MA polymerizable fluorescent dyes for use in analyte sensors | 
| 06/14/2012 | WO2012078521A1 Process for reducing inorganics from anionic surfactant solutions | 
| 06/14/2012 | US20120149938 Processes For The Preparation Of 2,5-Dihydroxybenzenesulfonic Acid Salts | 
| 06/13/2012 | EP2463269A1 Bioavailable diacylhydrazine ligands for modulating the expression of exogenous genes via an ecdysone receptor complex | 
| 06/13/2012 | EP2463266A1 Process for production of bis-quaternary ammonium salt, and novel intermediate | 
| 06/13/2012 | EP2462111A1 Preparation of (r)- and (s)-n-(3, 4-difluoro-2-(2-fluoro-4-iodophenylamino)--6-methoxyphenyl) -1- (2, 3-dihydroxypropyl)cyclopropane-1-sulfonamide and protected derivatives thereof | 
| 06/13/2012 | EP2461683A1 Bicyclic aryl sphingosine 1-phosphate analogs | 
| 06/13/2012 | CN102498102A Novel method for synthesizing ivabradine and the addition salts thereof with a pharmaceutically acceptable acid | 
| 06/13/2012 | CN102491922A Bishydroxyl sulfoacid betaine surface active agent and synthesis method thereof | 
| 06/13/2012 | CN102491921A Preparation method for 4-guanidinozoic acid (4-methoxycarbonyl)-phenyl ester monomesylate |