Results 11 to 20 of about 4,752 (187)

2-Naphthyl benzenesulfonate

Acta Crystallographica Section E Structure Reports Online, 2007
The phenyl and naphthyl ring systems are at an angle of 47.57 (9)° in the title compound, C16H12O3S. Only weak C—H⋯O inter­actions are present in the crystal structure.
Vembu, Nagarajan, Shafna, Karattu Chali, Sparkes, Hazel A., Howard, Judith A. K.   +3 more
openaire   +2 more sources

Simultaneous Determination of 15 Sulfonate Ester Impurities in Phentolamine Mesylate, Amlodipine Besylate, and Tosufloxacin Tosylate by LC-APCI-MS/MS

Journal of Analytical Methods in Chemistry, 2019
Sulfonate esters have been recognized as potential genotoxic impurities (PGIs) in pharmaceuticals. An LC-MS/MS method was developed and validated for the simultaneous determination of 15 sulfonate esters, including methyl, ethyl, propyl, isopropyl, and n-
Bo Jin, Kaijing Guo, Tingting Zhang, Tong Li, Chen Ma   +4 more
doaj   +1 more source

4-Nitrophenyl benzenesulfonate

Acta Crystallographica Section E Structure Reports Online, 2007
In the structure of the title compound, C12H9NO5S, the phenyl and 4-nitro­phenyl rings are not coplanar, the dihedral angle being 53.91 (4)°. The structure contains weak inter­molecular C—H⋯O hydrogen bonds and face-to-face π–π inter­actions between symmetry-related phenyl rings (separation 3.664 A).
Vembu, Nagarajan, Sparkes, Hazel A., Howard, Judith A. K.   +2 more
openaire   +2 more sources

4-(Acetylamino)phenyl benzenesulfonate

Acta Crystallographica Section E Structure Reports Online, 2007
The phenyl and acetyl­amino­phenyl rings of the title compound, C14H13NO4S, are at an angle of 71.57 (5)°, with the acetyl­amino group rotated by 16.3 (1)° from coplanarity with the ring to which it is attached. The structure is stabilized by the presence of N—H⋯O hydrogen bonds which create infinite one-dimensional chains along [010]; weak C—H⋯O inter­
Vembu, Nagarajan, Sparkes, Hazel A., Howard, Judith A. K.   +2 more
openaire   +2 more sources

Economic Comparison of Standard Method with E.Jurdo Simplified Method to Measure Linear Alkyl Benzenesulfonates in Municipal Wastewater [PDF]

سلامت و محیط, 2011
Background and Objectives: Linear alkyl benzene sulfonates are widely used as surfactants in formulated detergent products. Because of their use in household and industrial detergents, LAS is discharged into wastewater collection systems and subsequently
M Pirsaheb, A Almasi, A.A Zinatizade, R khamutian, S Delangizan   +4 more
doaj  

The Mechanism of the Alkaline Fusion of Benzenesulfonic Acid. [PDF]

Bulletin of the Chemical Society of Japan, 1966
Abstract Benzenesulfonic acid-1-14C was fused with potassium hydroxide at 320—350°C for five minutes. The phenol obtained was then degraded as usual, and the distribution of carbon-14 in the phenol was determined. Practically all the 14C activity was found at the 1 position of the phenol, which means that there is no migration of the 14C
Shigeru Oae, Naomichi Furukawa, Masahiro Kise, Mitsuyoshi Kawanishi   +3 more
openaire   +1 more source

One‐Step, High‐Removal‐Rate and Low‐Damage Chemical Mechanical Polishing of InP Enabled by Hydrolysis Activated PF6− with In Situ Fluoride Passivation

Advanced Science, EarlyView.
In this work, we propose a CMP method for InP using NH4PF₆, which hydrolyzes under In3+ catalysis to form reactive species. These convert InP into low‐binding‐energy fluorides, facilitating removal and dissolution. The process delivers high material removal rates, smooth surfaces, and fluorine passivation that lowers defect density and improves ...
Shigong Fu, Jianwei Zhou, Chenwei Wang, Yanchao Ge, Chong Luo, Yuhang Qi   +5 more
wiley   +1 more source

Self‐Complementary Dimers Based on Zwitterionic Halogen Bond Donors

Chemistry – A European Journal, EarlyView.
In this study we present the first isolated zwitterionic homodimers based on halogen bonding (XB). After optimization of the structures by changing the Lewis base (LB) and the backbone, their dimerization was observed in gas phase, as well as, in solid state.
Dana Kutzinski, Raffaella Papagna, Elric Engelage, Lianne H. E. Wieske, Mate Erdelyi, Stefan M. Huber   +5 more
wiley   +1 more source

Advanced flexible brain computer interface materials: From development to application

FlexMat, EarlyView.
This review explores how novel materials coatings are advancing brain‐computer interface (BCI) technology. It describes how these materials help overcome key challenges in signal accuracy, biocompatibility, and device durability. The paper highlights BCI applications in medicine and entertainment, and discusses future trends that could transform human ...
Renquan Guan, Xueying Cheng, Hao Xu, Zheng Lou, Zhao Zhao, Lili Wang   +5 more
wiley   +1 more source

The Binding of Pentadiyl‐α,ω‐Bis(Dimethyldodecylammonium), a Cationic Gemini 12‐5‐12 Surfactant to Conjugated Carboxylates as Organic Counterions

Journal of Surfactants and Detergents, EarlyView.
ABSTRACT The critical micelle concentration (CMC) values of the cationic gemini surfactant pentadiyl‐α,ω‐bis(dimethyldodecylammonium) bromide depend on the hydrophobicity of added conjugated organic carboxylate anions. Nine conjugated counterions, present as sodium salts of organic acids, were studied to expand the correlation to the counterion ...
Alexia Rios, Jaslyn Salazar, Valentina Kornach, Mark D. Lingwood, Steven J. Bachofer   +4 more
wiley   +1 more source