Category: 116-63-2

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

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

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

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

Lee, Haejoo published the artcileDendritic nanospace constructed by only glycerol units enhanced uptake of a fluorescent molecule in aqueous solution, Quality Control of 116-63-2, the publication is Chemical Communications (Cambridge, United Kingdom) (2012), 48(4), 546-548, database is CAplus and MEDLINE.

A polyglycerol dendrimer (PGD) of generation 2, consisting only glycerol units, constructed nanospace capable of uptake of a fluorescent mol. with a 1 : 1 stoichiometry. On the other hand, a PGD of generation 1 trapped the mol. at the outer part.

Chemical Communications (Cambridge, United Kingdom) 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

El-Sayed, Amira A. published the artcileDesign, synthesis, anticancer evaluation and molecular docking study of novel 2,4-dichlorophenoxymethyl-based derivatives linked to nitrogenous heterocyclic ring systems as potential CDK-2 inhibitors, COA of Formula: C10H9NO4S, the publication is Journal of Molecular Structure (2022), 131285, database is CAplus.

A novel series of 2,4-dichlorophenoxymethyl-based derivatives 4-18 bearing various nitrogenous heterocyclic systems have been designed and synthesized through mol. hybridization approach. The anti-proliferative activity of all newly synthesized derivatives was established against human HCT-116 and MCF-7 cancer cell lines. The structure-activity relationship (SAR) studies exhibited that the derivatives incorporated with pyrido[3,2-d]pyrimidine, naphtho[2,3-e][1,3]oxazine-5-sulfonic acid, benzo[d]thiazole and benzo[d]oxazole scaffolds revealed the highest cytotoxic activities comparing with doxorubicin as a reference drug. The promising derivatives 5, 9, 13 and 15 were subjected to enzymic inhibitory assessment against CDK-2/cyclin A2 using roscovitine as a standard Concerning their effects upon the apoptotic process, they upregulated Bax, p-53 and caspase-3 levels and downregulated Bcl-2, causing induction of apoptosis. Moreover, the in silico mol. docking was applied to investigate the possible binding modes and orientations within the active site of CDK-2.

Journal of Molecular Structure 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, COA of Formula: C10H9NO4S.

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

Beitollahi, Hadi published the artcileApplication of a modified CuO nanoparticles carbon paste electrode for simultaneous determination of isoperenaline, acetaminophen and N-acetyl-L-cysteine, Computed Properties of 116-63-2, the publication is Electroanalysis (2016), 28(3), 645-653, database is CAplus.

A 1-[2-hydroxynaphthylazo]-6-nitro-2-naphthol-4-sulfonate/ CuO nanoparticles modified carbon paste electrode (HNNSCCPE) was constructed and the electro-oxidation of isoprenaline at the surface of the modified electrode was studied using cyclic voltammetry (CV), chronoamperometry (CHA), and square wave voltammetry (SWV). Under the optimized conditions, the square wave voltammetric peak current of isoprenaline increased linearly with isoprenaline concentrations in the range of 1.0×10^-7 to 7.0×10^-4 M and detection limit of 5.0×10^-8 M was obtained for isoprenaline. The prepared modified electrode exhibits a very good resolution between the voltammetric peaks of isoprenaline, acetaminophen and N-acetyl-L-cysteine which makes it suitable for the detection of isoprenaline in the presence of acetaminophen and N-acetyl-L-cysteine in real samples.

Electroanalysis 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

Shweta published the artcileDesign-specific mechanistic regulation of the sensing phenomena of two Schiff bases towards Al³⁺, HPLC of Formula: 116-63-2, the publication is RSC Advances (2016), 6(60), 55430-55437, database is CAplus.

We report herein two optical probes (R1 and R2) for the fluorogenic detection of Al³⁺ at the level of 10^-8 M. R1 and R2 were synthesized by simple Schiff base condensation of 4-amino-3-hydroxy-1-naphthalene sulfonic acid with 5-bromosalicaldehyde and 2-hydroxy-1-naphthaldehyde, resp. The same were characterized by various spectroscopic techniques. R1 and R2 both underwent fluorescence emission upon their resp. interactions with Al³⁺ in an ethanol : water mixture (4 : 1, volume/volume). The binding modes of the receptors with Al³⁺ were studied through ¹H NMR spectroscopy, Job plots, and HR-MS, as well as through binding constant determination involving fluorescence titration data. The quenching of -C=N isomerization and of photoinduced electron transfer (PET) seem to be responsible for the fluorogenic switch-on situation of R1 and R2 with Al³⁺. At the same time, excited state intramol. proton transfer (ESIPT) also plays an important role in the ratiometric fluorescence response of R2, which is a consequence of a minor structural variation in R1 where the bromophenyl moiety is replaced with a naphthalene moiety. The mechanistic aspects of the sensing phenomenon are discussed in terms of ¹H NMR titration as well as theor. calculations at the d. functional level.

RSC Advances 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 C17H14O5, HPLC of Formula: 116-63-2.

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

Rout, Kanhu Charan published the artcileAromatic C-nitrosation by a copper(II)-nitrosyl complex, Recommanded Product: 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, the publication is Dalton Transactions (2015), 44(4), 1829-1835, database is CAplus and MEDLINE.

Copper(II) complex of 4-amino-3-hydroxynaphthalene-1-sulfonic acid was synthesized and characterized. Upon addition of nitric oxide, the copper(II) center of the complex in methanol undergoes reduction through an unstable copper(II)-nitrosyl intermediate. The formation of the intermediate was confirmed by UV-visible and FTIR spectroscopy. The reduction of the copper(II) center was accompanied with a simultaneous C-nitrosation of the aromatic ring of the ligand. The C-nitrosation product was isolated and characterized by various spectroscopic analyses.

Dalton Transactions 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

Satheesh Babu, S. published the artcileDetoxification and color removal of Congo red by a novel Dietzia sp. (DTS26) – A microcosm approach, Application of 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, the publication is Ecotoxicology and Environmental Safety (2015), 52-60, database is CAplus and MEDLINE.

The present study deals with the decolorization and detoxification of Congo red (CR) by a novel marine bacterium Dietzia sp. (DTS26) isolated from Divar Island, Goa, India. The maximum decolorization of 94.5% (100 mg L^-1) was observed under static condition within 30 h at pH 8 and temperature 32±2 °C. Bacterially treated samples could enhance the light intensity by 38% and the primary production levels 5 times higher than the untreated. The strain was also able to reduce COD by 86.4% within 30 h at 100 mg L^-1 of CR dye. The degraded metabolites of CR dye were analyzed by FTIR, HPLC, GC-MS and the end product closely matches with 4-amino-3-naphthol-1-sulfonate which is comparatively less toxic than CR. Bioassay experiments conducted in treated samples for Artemia franciscana showed better survival rates (after 72 h) at higher concentration of CR (500 mg L^-1). This work suggests the potential application of DTS26 in bioremediation of dye wastes and its safe disposal into coastal environment.

Ecotoxicology and Environmental Safety 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, Application of 4-Amino-3-hydroxynaphthalene-1-sulfonic acid.

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