Tag: M.W=200-250

Gergely, Andras published the artcileCorrosion protection of cold-rolled steel with alkyd paint coatings composited with submicron-structure types polypyrrole-modified nano-size alumina and carbon nanotubes, Synthetic Route of 116-63-2, the publication is Materials Science & Engineering, B: Advanced Functional Solid-State Materials (2012), 177(18), 1571-1582, database is CAplus.

This paper is focused on studying corrosion protection of cold-rolled steel with alkyd paint coatings comprising nano-size alumina and either polystyrene-sulfonate (PSS) modified or sulfonated multi-walled carbon nanotube (MWCNT) supported polypyrrole (PPy). Single layer coatings (in thickness of 40 ± 5 μm) comprising PPy deposited alumina and PSS modified MWCNT supported PPy afforded viable protection during the 1 M sodium chloride test. The coatings containing PSS modified and weakly sulfonated MWCNTs (at volume fractions of 9.9 × 10^-4 and 2.5 × 10^-4) with PPy volume fractions of 3.5 × 10^-3 and 2.5 × 10^-3 provided effective corrosion prevention during the 1 M sodium chloride and hydrochloric acid solution tests. While inhibitor particles were characterized by IR spectroscopy, corrosion products formed at the paint-steel interface were studied by XPS. Apart from the electron microscopy observations, rheol. study of three-dimensional structure of the inhibitor particles was performed in dispersions at similar compositions to those used for the paint formulations. Thus, protection mechanism relating to both types of immersion tests is discussed in terms of properties of the inhibitor particles and their microstructure in the coatings.

Materials Science & Engineering, B: Advanced Functional Solid-State Materials published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C10H9NO4S, Synthetic Route of 116-63-2.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Shah, Maulin P. published the artcileMicrobial degradation of reactive red by Pseudomonas spp. MPS-2, Synthetic Route of 116-63-2, the publication is Journal of Bioremediation & Biodegradation (2013), 4(6), 1000197/1-1000197/7, database is CAplus.

Azo dyes are a widespread class of poorly biodegradable industrial pollutants. In anaerobic environments, azo bonds are reductively cleaved yielding carcinogenic aromatic amines, many of which are assumed to resist further metabolism by anaerobes bacteria. The latter compounds generally require aerobic conditions for their degradation A reactive group of azo dye called C.I: Reactive Red was found to be degraded using Pseudomonas spp. MPS-79 to α-ketoglutaric acid with transient accumulation of 4-aminobenzenesulfonic acid (sulphanilic acid), 4-amino, 3-hydronaphthalenesulfonic acid and 4-amino, 5-hydronaphthalene 2,7 disulfonic acid as a degradation intermediate in anaerobic facultative batch culture. Color and Total Organic Carbon (TOC) was successfully removed more than 95% and upto 50% resp. There is no significant correlation between pH and oxygen depletion since there is slightly change in pH was observed (pH from 7.21 to 7.25) though the anaerobiosis was found developed throughout the experiment (redox potential from 0.7 to 1.6 mV). The anaerobic metabolism of glucose as co-metabolite also shown to provide the electrons required for the initial reductive cleavage of the azo group. This finding suggest that it is possible to mineralize the azo dye in the environment; thereby, avoiding accumulation of toxic intermediates in the water.

Journal of Bioremediation & Biodegradation published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C14H20BClO2, Synthetic Route of 116-63-2.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Anjali published the artcileSynthesis, characterisation, antioxidant and antimicrobial activity of isatin derivatives, Name: 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, the publication is International Research Journal of Pharmacy (2019), 10(9), 223-230, database is CAplus.

In the present study some novel Schiff bases of isatin I [R = OH, 2-O₂NC₆H₄, 2-Cl-4-O₂NC₆H₃, etc.] were synthesized by condensation of isatin mol. with anilines after performing the mol. docking and ADME prediction. Some new Schiff bases of isatin I were prepared in order to study the antibacterial, antifungal and antioxidant properties. The isatin was synthesized by Sandmeyer method and then its derivatives I were synthesized after obtaining significant results from mol. docking and ADME prediction. The structures of the synthesized compounds I were confirmed by means of IR, ¹H-NMR and elemental anal. Synthesized compounds I were screened for antioxidant activity, among which I [R = 2-Cl-4-O₂NC₆H₃] showed potent activity as antioxidant. Synthesized compounds I showed broad spectrum of antibacterial and antifungal activities.

International Research Journal of Pharmacy published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C10H9NO4S, Name: 4-Amino-3-hydroxynaphthalene-1-sulfonic acid.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Kumar, Sunil published the artcileSynthesis, characterization and evaluation for anticonvulsant activity of acetylnaphthalene and substituted acetylenaphthalene derivative of heterocyclic compounds, Synthetic Route of 116-63-2, the publication is Pharma Innovation (2013), 1(11), 90-101, database is CAplus.

A series of acetyl- and acetoxynaphthalenes was prepared by Mannich reaction with secondary amines and CH₂O. In this reaction the Ac group served as he H active compound The novel compounds were tested for anticonvulsant activity using pentylenetetrazole (scPTZ) test. Some of the compounds showed significant anticonvulsant activity.

Pharma Innovation published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C10H9NO4S, Synthetic Route of 116-63-2.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Sahoo, Anupam published the artcileA Combined Process for the Degradation of Azo-Dyes and Efficient Removal of Aromatic Amines Using Porous Silicon Supported Porous Ruthenium Nanocatalyst, Quality Control of 116-63-2, the publication is ACS Applied Nano Materials (2018), 1(9), 5169-5178, database is CAplus.

Herein, the authors present a facile route for the preparation of porous Si supported porous Ru nanoparticle system (Si@p-RuNP) for efficient removal of azo-based dyes and aromatic amines from wastewater. The synthesized nanoparticles were characterized using different anal. techniques including high-resolution TEM, XPS, field-emission SEM, powder x-ray diffraction, Brunauer-Emmett-Teller anal., etc. The Si@p-RuNP nanocatalytic system exhibits dual catalytic behavior for the reduction of -N=N- bond and oxidation of aromatic amines in aqueous solution The porous nanostructured Si@p-RuNP exhibits excellent degradation efficacy for Congo red dye (44 cycles in 1 h) as compared to its solid analog Si@RuNP (24 cycles in 1 h) in the presence of NaBH₄. Also, the present nanocatalyst mimics the peroxidase-like activity toward oxidation of various aromatic amines to their corresponding polyamines at pH 5.0 in the presence of H₂O₂ as an oxidant. Polyamines being insoluble in H₂O offers a simple and convenient strategy for the elimination of H₂O-soluble aromatic amines. The present process is convenient, efficient, and cost-effective and generates a small amount of solid waste as compared to the existing processes. Thus, the authors envision that the present unique nanocatalyst system can be useful for the removal of toxic amines from effluent toward solving the problem of textile-based industrial wastewater.

ACS Applied Nano Materials published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C10H9NO4S, Quality Control of 116-63-2.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Liu, Bicheng published the artcileA sensitive fluorescent assay for the determination of parathion-methyl using AHNSA probe with MnO₂ nanosheets, Computed Properties of 116-63-2, the publication is Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy (2021), 119146, database is CAplus and MEDLINE.

In this paper, a novel fluorescence assay has been constructed for the determination of parathion-Me (PM) by using 4-amino-3-hydroxy-1-naphthalenesulfonic acid (AHNSA) as probe. MnO₂ nanosheets (MnO₂ NS) could quench the fluorescence of AHNSA, while Mn²⁺, the reduction product of MnO₂ NS, has no influence on it, resulting in fluorescence recovery. This is because that MnO₂ NS have oxidized characteristic, and they can react with choline (TCh), which is the product of acetylthiocholine (ATCh) catalyzed by acetylcholinesterase (AChE). In the presence of OPs, the activity of AChE was inhibited, accompanied by the restraint of the redox reaction of MnO₂ NS, therefore the fluorescence of AHNSA was quenched. Under the optimized exptl. conditions, a linear range of PM was determined to be 0.4-40 ng/mL (R² = 0.997) by the proposed method with the limit of detection for 0.18 ng/mL (S/N = 3). The assay was successfully applied to the determination of PM in lake water, which average recoveries were between 86.5% and 114.4%.

Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C10H9NO4S, Computed Properties of 116-63-2.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Luo, Lin published the artcileStudy on molybdenum blue spectrophotomertric method for determination of trace silicon in high purity hafnium, Recommanded Product: 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, the publication is Henan Huagong (2015), 32(5), 60-62, database is CAplus.

The research develops a molybdenum blue spectrophotometry in high-purity hafnium trace silicon, using hydrofluoric acid to dissolve the sample, adding boric acid masking fluoride ion. adding ammonium molybdate to react with silicic acid ions formed by the yellow silicon phase heteropolyacid complexes with tartaric acid medium at 1-amino-2-naphthol-4-sulfonic acid, measuring the absorbance and recovery tests. The test results showed that: the method is simple, qual. method, reproducibility, good accuracy, to meet the trace anal. inspection visit silicon requirements.

Henan Huagong published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C10H9NO4S, Recommanded Product: 4-Amino-3-hydroxynaphthalene-1-sulfonic acid.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Zhao, Zujin published the artcileFluorescent, carrier-trapping dopants for highly efficient single-layer polyfluorene LEDs, Related Products of naphthyridine, the publication is Advanced Functional Materials (2007), 17(13), 2203-2210, database is CAplus.

Two fluorescent mols. with an alkynylanthracene core and pyrene end-cappers were synthesized and fully characterized. Carbazole moieties are introduced into one mol. at the C9 position of the fluorene linkages to enhance the hole-transport ability of the mol. and to reduce intermol. interactions. Both compounds exhibit high thermal stabilities and narrow energy bandgaps. Single-layer polymer light-emitting diodes (PLEDs) based on poly(9,9-dioctylfluorene) (PFO) doped with the synthesized compounds exhibit excellent performance. A PLED with 0.2% of dopant 7 had a high luminance efficiency of 10.7 ± 0.3 cd A^-1 as well as a brightness of 1400 cd m^-2 at a c.d. of 13 mA cm^-2, and a low turn on voltage (3.1 V) at a brightness of 10 cd m^-2. A maximum brightness of 20,500 ± 1400 cd m^-2 at 7 V was also measured. The high efficiency of the device’s performance is attributed to the good electron and hole trapping ability of the dopants, which possess suitable energy levels as compared to those of PFO.

Advanced Functional Materials published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C6H8N2O2, Related Products of naphthyridine.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Zhang, Ben published the artcilePreparation of two kinds of polyaspartic acid grafted copolymers and their scale inhibition performance, SDS of cas: 116-63-2, the publication is Huaxue Yanjiu (2013), 24(4), 420-424, database is CAplus.

Grafted copolymers polyaspartic acid/diethylenetriamine(denoted as PASP/DETA) and polyaspartic acid/1-amino-2-naphthol-4-sulfonic acid(denoted as PASP/1, 2, 4) were synthesized with urea, maleic anhydride, diethylenetriamine and 1-amino-2-naphthol-4-sulfonic acid as the starting materials. The chem. structure of as-synthesized products was analyzed by IR spectrometry; and their scale inhibition performance in industrial water was tested. Results show that PASP/DETA possesses excellent scale inhibition performance against Ca₃(PO₄)₂, and PASP/1, 2, 4possesses excellent scale inhibition performance against CaCO₃. When PASP/DETA and PASP/1, 2, 4 are combined at a concentration of 5 mg/L and 1.5 mg/ L, they have a scale inhibition efficiency of 95.4% against CaCO₃ and of 95.2% against Ca₃(PO₄)₂.

Huaxue Yanjiu published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C3H6O2, SDS of cas: 116-63-2.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Zhang, Li published the artcileActivated carbon functionalized with 1-amino-2-naphthol-4-sulfonate as a selective solid-phase sorbent for the extraction of gold(III), Recommanded Product: 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, the publication is Microchimica Acta (2011), 174(3-4), 391-398, database is CAplus.

A new method for the separation, preconcentration, and determination of gold(III) ion in water samples was developed. It is based on the use of activated carbon that was modified with 1-amino-2-naphthol-4-sulfonate to yield a solid-phase sorbent. The exptl. conditions for adsorption were optimized. Gold(III) can be quant. adsorbed at pH 3, and adsorbed gold(III) can be completely eluted with 2.0 mL of a 2% solution of thiourea in 1 M HCl. The enrichment factor is 200, and the maximum adsorption capacity is 32 mg g^-1. Au was then determined by inductively coupled plasma optical emission spectrometry. The detection limit (3σ) is 0.26 μg L^-1, and the RSD is 3.1% (n = 8). Common potentially interfering ions do not interfere with the adsorption and determination of the analytes. The method displays selectivity, sensitivity and reproducibility, and was successfully applied to the determination of reference materials and water samples.

Microchimica Acta published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C13H16O2, Recommanded Product: 4-Amino-3-hydroxynaphthalene-1-sulfonic acid.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem