Category: 116-63-2

Sebastian, S. published the artcileVibrational spectra, molecular structure, natural bond orbital, first order hyperpolarizability, TD-DFT and thermodynamic analysis of 4-amino-3-hydroxy-1-naphthalenesulfonic acid by DFT approach, Category: naphthyridine, the publication is Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy (2013), 167-178, database is CAplus and MEDLINE.

Vibrational spectral anal. of 4-amino-3-hydroxy-1-naphthalenesulfonicacid (4A3HNSA) mol. were carried out using FTIR and FT-Raman spectroscopic techniques. The equilibrium geometry, harmonic vibrational wavenumbers, various bonding features were computed using d. functional B3LYP method with 6-31G(d,p) as basis set. The Non-Linear Optical (NLO) behavior of 4A3HNSA was studied by determination of the elec. dipole moment (μ) and hyperpolarizability β using HF/6-31G(d,p) method. Stability of the mol. arising from hyperconjugative interactions, charge delocalization were analyzed using natural bond orbital (NBO) anal. Charge in electron d. (ED) in σ^* and π^* antibonding orbitals and second order delocalization energies (E2) confirms the occurrence of Intramol. Charge Transfer (ICT) within the mol. The energy and oscillator strength calculated by Time-Dependent D. Functional Theory (TD-DFT) complements with the exptl. findings. The simulated spectra satisfactorily coincide with the exptl. spectra.

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 C7H13NO2, Category: naphthyridine.

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

Song, Zhiyong published the artcileDegradation and detoxification of azo dyes by a salt-tolerant yeast Cyberlindnera samutprakarnensis S4 under high-salt conditions, Related Products of naphthyridine, the publication is World Journal of Microbiology & Biotechnology (2018), 34(9), 1-13, database is CAplus and MEDLINE.

A new yeast strain which was capable of degrading various azo dyes under high-salt conditions was identified in this study. The results showed that the yeast named S4 was identified as Cyberlindnera samutprakarnensis through 26S rDNA sequence anal. and could decolorize more than 97% of Acid Red B (ARB) within 18 h under the optimal conditions. The acute toxicity of ARB sharply decreased after degradation NADH-DCIP reductase and lignin peroxidase were determined as the key reductase and oxidase of the yeast S4, resp. Furthermore, it was proposed that ARB was degraded by strain S4 successively through reduction of azo bonds, hydroxylation, deamination, desulfonation and finally to the TCA cycle.

World Journal of Microbiology & Biotechnology 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 C10H19NO3, Related Products of naphthyridine.

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

Wu, Wei published the artcileSpectrophotometric determination of trace nitrite with a novel self-coupling diazotizing reagent: J-acid, Quality Control of 116-63-2, the publication is Khimiya i Tekhnologiya Vody (2015), 37(6), 545-554, database is CAplus.

A simple and sensitive method for the spectrophotometric determination of nitrite was described and optimum reaction conditions along with other important anal. parameters were established. In the presence of potassium bromide at 25°C, nitrite reacted with J-acid in hydrochloric acid producing diazonium salt and then coupled with excess J-acid in the sodium carbonate solution yielding red colored azo compounds At wavelength of 500 nm, Beer’s law was obeyed over the concentration range of 0,02-0,60 mg·L^-1. The molar absorptivity was 3,92·10⁴ L·mol^-1·cm^-1. This method was easily applied to the determination of trace nitrite in environmental water with recoveries of 98,7-101,2%.

Khimiya i Tekhnologiya Vody 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 C17H18N3NaO3S, Quality Control of 116-63-2.

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

Cao, Ye published the artcileThe oxidative degradation of Calmagite using added and in situ generated hydrogen peroxide catalysed by manganese(II) ions: Efficacy evaluation, kinetics study and degradation pathways, Application of 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, the publication is Chemosphere (2022), 286(Part_2), 131792, database is CAplus and MEDLINE.

Manganese (II) ions (Mn(II)) catalyze the oxidative degradation of Calmagite (CAL, 2-hydroxy-1-(2-hydroxy-5methylphenylazo)-4-naphthalenesulfonic acid) at room temperature using added and in situ generated hydrogen peroxide (H₂O₂), using 1,2-dihydroxybenzene-3,5-disulfonate, disodium salt and monohydrate (Tiron) as the co-catalyst for the in situ generation of H₂O₂. The percentage of CAL degradation with the in situ generated H2O2 was 91.1% after 30 min which is lower than that in the added H₂O₂/Mn(II) system (96.0%). A one-eighth-lives method was applied to investigate the kinetic parameters in the added H₂O₂ system, with and without Mn(II), involving phosphate, carbonate, and two biol. buffers at different pHs. Percarbonate (HCO^–₄) was found to be the main reactive species for CAL degradation in the added H₂O₂ system buffered by carbonate in the absence of Mn(II). Manganese (IV) = O (Mn(IV) = O) and manganese(V) = O (Mn(V) = O) are the main reactive species in the added H2O2/Mn(II) system buffered by carbonate and non-carbonate buffers resp. pH 8.5 was the optimum pH for CAL degradation when buffered by carbonate, while pH 10.0 is the best pH for the systems not using carbonate buffer. Using a high performance liquid chromatog./electrospray ionisation mass spectrometer (HPLC/ESI-MS), the degradation intermediates of CAL were identified as 1-amino-2-naphthol-4-sulfonate ion, 1-amino-2-naphthol-4-sulfinic ion, 1-amino-2-naphthol, and 1-nitroso-2-naphthol.

Chemosphere 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

Pavadai, Parasuraman published the artcileSynthesis, characterization and antimalarial evaluation of some substituted 4-aminocinnoline-3-carboxamide derivatives, Application of 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, the publication is International Journal of Pharmaceutical Chemistry (2011), 1(2), 39-44, database is CAplus.

A series of 7-substituted-4-aminocinnoline-3-carboxamide were synthesized from 7-chloro-4-aminocinnoline-3-carboxamide treated with substituted aryl amine under phase transfer catalysis condition. The structure of the compounds were characterized by UV, IR, NMR and mass spectral data, and evaluated for their in vitro antimalarial. All analogs showed in vitro antimalarial activity against Plasmodium falciparum.

International Journal of Pharmaceutical Chemistry 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

Parasuraman, Pavadai published the artcileSynthesis, characterization and antimicrobial evaluation of some substituted 4-aminocinnoline-3-carboxamide derivatives, Quality Control of 116-63-2, the publication is International Journal of Pharmacy and Life Sciences (2012), 3(2), 1430-1436, database is CAplus.

A series of 7-substituted-4-aminocinnoline-3-carboxamide were synthesized from 7-chloro-4-aminocinnoline-3-carboxamide treated with substituted aryl amines under phase transfer catalysis condition. The structure of the compounds were characterized by UV, IR, NMR and mass spectral data, and evaluated for their in vitro antimalarial, antibacterial, and antifungal activity. All analogs showed in vitro antimalarial activity against Plasmodium falciparum, and all the analogs showed antibacterial and antifungal activity in various microbes.

International Journal of Pharmacy and Life Sciences 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

W-Radhi, Sami published the artcilePreparation and use of a new organic reagent of 4-(furan-2-yldiazenyl)-3-hydroxy naphthalene-1-sulfonic acid (FDHNSA) in an analytical study of some metal ions and drugs, such as salbutamol (SAL) and methyldopa (MDP), Category: naphthyridine, the publication is Research Journal of Pharmaceutical, Biological and Chemical Sciences (2022), 13(3), 170-180, database is CAplus.

This study includes the synthesis of organic reagent 4-(Furan-2-yldiazenyl)-3-hydroxy naphthalene-1-sulfonic acid (FDHNSA) by reacting a diazonium Salt (4-amino-3-hydroxy naphthalene-1-sulfonic aciel) with Furan in alk. ethanol solution The prepared reagent was identified by using (UV-Vis), (FT.IR), (H1NMR) techniques, it was λmax = 412 nm for the reagent (FD HNSA) in ethanol. The m.p. of reagent (FDANSA) is found to be (129-130)°C. This study tried to find a quick, easy and inexpensive spectral way to detection two kind of drugs, Methyldopa (MDP) and Salbutamol (SAL) through the reaction the drugs with anew regent 4-(furan-2-yldiazenyl)-3-hydroxynaphthalene-1-sulfonic acid (FDHNSA) in alk. medium. The results a highest absorption for (SAL) with FDHNSA at λmax = 485 nm, while the λmax = 348 nm for SAL in water, the highest absorption for the Free reagent (FDH NSA) λmax = 412 nm in ethanol. This study was conducted to find the optimized Conditions to estimate, the drug (SAL) with the new Reagent (FDHNSA), It was show the Optimized Concentration reagent was equal to (0.023M) and (2.5ml), The volume of drug (SAL) was equal to (1.5ml). The value of pH was equal (11). Added to that the effect of temperature and time were Conducted, a higher absorbance was obtained when temperature At (35°C), while at that best time it was obtained at (15min) for (SAL). The Calibration curve for the durg (SAL) was Constructed after establish the optime conditions. The Calibration Curve was constructed and subsequently the Beer′s Low was obeyed within the Concentration range of SAL (0.75 – 12 μg.ml-1). The Molar absorptivity (ε) Value was equal 1.5802 x 10+4L.mole-1.cm-1. The Sandell′s sensitivity value was equal 0.0365 μg.ml-1. The R.SD% value was equal. 1.230% with a correlation coefficient 0.9995. The stoichiometry of the reaction between the drug (SAL) and reagent (FDHNSA) was proposed with continuous variation and mode ratio methode was (1:1), (SAL:FDHNSA). Finally, interference was studied. The results reveal no effect on the determination of the drug. This methods was success fully applied for the determination of the drugs and in pharmaceutical compounds

Research Journal of Pharmaceutical, Biological and Chemical Sciences 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 C10H12F6N4O6PdS2, Category: naphthyridine.

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

Tathe, Abhinav B. published the artcileNovel Fluorescent Phenazines : Synthesis, Characterization, Photophysical Properties and DFT Calculations, Quality Control of 116-63-2, the publication is Journal of Fluorescence (2015), 25(5), 1403-1415, database is CAplus and MEDLINE.

The organic compounds with donor-π-bridge-acceptor type of architecture are of great interest for application as semiconductors. The synthesized compounds are obtained from 4-morpholino naphthalene-1,2-dione and 4-(4-(diethylamino) phenyl)naphthalene-1,2-dione and mono substituted ortho-phenylene diamines by condensation reaction. The donor groups are morpholinyl and N,N-diethylamino Ph moieties, whereas acceptors are substituted phenazines. The synthesized mols. were characterized by spectral anal.. The effect of the substitution has been studied on the basis of photophys. properties of the mols. The halochromism behavior of the mol. shows that at low to moderate acidity they respond differently with two types of donors. DFT computations were used in conjunction with NMR anal. to determine the ratio of the positional isomers.

Journal of Fluorescence 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 C6H8O6, Quality Control of 116-63-2.

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

Teli, M. D. published the artcileAntibacterial textiles using antibacterial dyes, Synthetic Route of 116-63-2, the publication is Asian Dyer (2011), 8(4), 37-40, database is CAplus.

The application of zinc complex dyes on silk and nylon for obtaining a more permanent way of microbial protection to textiles was explored. In order to do so, the preparation and characterization of 2:1 zinc complexes were performed. The 2:1 zinc metal complex dyes were successfully synthesized. These premetallized zinc complex dyes were found to exhibit excellent antibacterial properties. As long as these dyes are on the fabric, its antibacterial property continues to last, offering a new route of obtaining durable antibacterial properties on silk and nylon fabrics.

Asian Dyer 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 C16H21N3O3S, Synthetic Route of 116-63-2.

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

Turcas, Crina Valentina published the artcileAzo dye complexes. Synthesis and tinctorial properties, COA of Formula: C10H9NO4S, the publication is Scientific Bulletin – University “Politehnica” of Bucharest, Series B: Chemistry and Materials Science (2012), 74(1), 109-118, database is CAplus.

Exptl. results concerning synthesis of copper, cobalt, and chromium complex combinations with azo dyes starting from 1-diazo-2-naphthol-4-sulfonic acid and 6-nitro-1-diazo-2-naphthol-4-sulfonic acid by coupling with β-naphthol or 4-(diethylamino)-2-naphthol are presented. These complex combinations were characterized by elemental chem. anal. and electronic and IR spectra. Their dyeing properties on wool and polyamide were determined

Scientific Bulletin – University “Politehnica” of Bucharest, Series B: Chemistry and Materials Science 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 C11H12O4, COA of Formula: C10H9NO4S.

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