Category: 25956-17-6

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Doguc, Duygu Kumbul; Deniz, Firdevs; Ilhan, Ilter; Ergonul, Esin; Gultekin, Fatih researched the compound: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate( cas:25956-17-6 ).Synthetic Route of C18H14N2Na2O8S2.They published the article 《Prenatal exposure to artificial food colorings alters NMDA receptor subunit concentrations in rat hippocampus》 about this compound( cas:25956-17-6 ) in Nutritional Neuroscience. Keywords: hippocampus NMDA receptor erythrosine tartrazine amaranth; Artificial food colors; NMDARs; NR2A; NR2B; forced swim test; open field test; spatial learning and memory; α7 nAChR. We’ll tell you more about this compound (cas:25956-17-6).

Exposure to artificial food color additives (AFCAs) has been implicated in the etiol. of certain childhood hyperactivity and learning disabilities. N-methyl-D-aspartate receptors and alpha-7 nicotinic acetylcholine receptor (α7 nAChR) are involved in learning and memory. We administered a mixture of AFCAs (erythrosine, ponceau 4R, allura red AC, sunset yellow FCF, tartrazine, amaranth, brilliant blue, azorubine, and indigotine) to female rats during gestation to investigate the effects of prenatal exposure to AFCAs on neurobehavior, spatial learning, and memory in their offspring. We also investigated whether AFCAs modulate NR2A, NR2B, and α7 nAChR protein levels in their offsprings′ hippocampi. Although spatial learning and memory were not altered, the offspring of rats exposed to AFCAs exhibited decreased motivation and increased despair-related behavior. NR2A and NR2B protein levels were significantly reduced in female offspring in the exptl. group (p < 0.05), whereas α7 nAChR level was not significantly altered. Our results suggest that prenatal exposure to AFCAs may lead to sex-dependent alterations in glutamatergic signaling which may continue into adolescence. This compound(Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate)Synthetic Route of C18H14N2Na2O8S2 was discussed at the molecular level, the effects of temperature and reaction time on the properties of the compound were discussed, and the optimum reaction conditions were selected.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Related Products of 25956-17-6. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate, is researched, Molecular C18H14N2Na2O8S2, CAS is 25956-17-6, about Designing refractive index fluids using the Kramers-Kronig relations. Author is Sai, Tianqi; Saba, Matthias; Dufresne, Eric R.; Steiner, Ullrich; Wilts, Bodo D..

For a number of optical applications, it is advantageous to precisely tune the refractive index of a liquid Here, we harness a well-established concept in optics for this purpose. The Kramers-Kronig relation provides a phys. connection between the spectral variation of the (real) refractive index and the absorption coefficient In particular, a sharp spectral variation of the absorption coefficient gives rise to either an enhancement or reduction of the refractive index in the spectral vicinity of this variation. By using bright commodity dyes that fulfil this absorption requirement, we demonstrate the use of the Kramers-Kronig relation to predictively obtain refractive index values in water solutions that are otherwise only attained with toxic specialised liquids

This compound(Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate)Related Products of 25956-17-6 was discussed at the molecular level, the effects of temperature and reaction time on the properties of the compound were discussed, and the optimum reaction conditions were selected.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

HPLC of Formula: 25956-17-6. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate, is researched, Molecular C18H14N2Na2O8S2, CAS is 25956-17-6, about Development of a biosponge based on Luffa cylindrica and crosslinked chitosan for Allura red AC adsorption. Author is Schio, Rejiane R.; Goncalves, Janaina O.; Mallmann, Evandro S.; Pinto, Diana; Dotto, Guilherme L..

A new bioadsorbent from Luffa cylindrica and cross-linked chitosan was proposed in the present study. Luffa was used as a natural support medium for chitosan crosslinked with glutaraldehyde (LCsG) and epichlorohydrin (LCsE). Biosponges were applied to remove Allura red from aqueous solutions LCsG and LCsE were produced using different concentrations of chitosan (1%, 3% and 5% (m v-1)) and crosslinking agents (0.5%, 1.0% and 1.5% (v v-1)). Based on the FT-IR spectra, functional groups characteristic of chitosan crosslinked with glutaraldehyde and epichlorohydrin confirmed the crosslinking. In addition, the biosorbent revealed highly efficient functional groups and morphol. with irregularities favorable for adsorption. It was found that the increase in the percentage of glutaraldehyde and epichlorohydrin increased the sample’s swelling degree, and the degree of crosslinking was greater than 80% for all LCsG. The results regarding the degree of swelling and degree of crosslinking corroborated with the evaluation of the biosponge’s adsorptive potential. The Sips model predicted the equilibrium isotherms, with a maximum adsorption capacity of 89.05 mg g-1 for LCsG and 60.91 mg g-1 for LCsE. The new procedure was successful. Luffa was excellent support for chitosan, resulting in an attractive, low-cost bioadsorbent, preventing renewable sources.

This compound(Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate)HPLC of Formula: 25956-17-6 was discussed at the molecular level, the effects of temperature and reaction time on the properties of the compound were discussed, and the optimum reaction conditions were selected.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Category: pyrazoles-derivatives. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate, is researched, Molecular C18H14N2Na2O8S2, CAS is 25956-17-6, about NiFe2O4-rGO/ionic liquid modified carbon paste electrode: An amplified electrochemical sensitive sensor for determination of Sunset Yellow in the presence of Tartrazine and Allura Red. Author is Darabi, Rozhin; Shabani-Nooshabadi, Mehdi.

In this paper, using a carbon paste electrode (CPE) modified with 1-ethyl-3-methylimidazolium chloride as an ionic liquid (IL) and NiFe2O4-rGO nanocomposite (IL/NiFe2O4/rGO/CPE), a sensitive and effective electrochem. sensor is applied to analyze Sunset Yellow. The X-ray diffraction (XRD), SEM (SEM) with Energy Dispersive X-Ray Anal. (EDX) and Fourier-transform IR spectroscopy (FTIR) are employed to characterize the synthesized NiFe2O4-rGO nanocomposite. The oxidation peak currents of colorants were obtained by CV and DPV techniques; and as a result, the two linear ranges from 0.05 to 30μM (R2 = 0.9939) and 30 to 500μM (R2 = 0.9953) along with LOD of 0.03μM for Sunset Yellow is obtained. The proposed sensor is successfully applied to determine the Sunset Yellow, Tartrazine and Allura Red in PBS (pH 3). The IL/NiFe2O4/rGO/CPE displays a high performance for anal. of these dyes in hair shampoo and an orange juice as real samples with acceptable results.

This compound(Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate)Category: pyrazoles-derivatives was discussed at the molecular level, the effects of temperature and reaction time on the properties of the compound were discussed, and the optimum reaction conditions were selected.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Recommanded Product: 25956-17-6. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate, is researched, Molecular C18H14N2Na2O8S2, CAS is 25956-17-6, about Exploring rapid photocatalytic degradation of organic pollutants with porous CuO nanosheets: Synthesis, dye removal, and kinetic studies at room temperature. Author is Nazim, Mohammed; Khan, Aftab Aslam Parwaz; Asiri, Abdullah M.; Kim, Jae Hyun.

In this work, we report the facile, environmentally friendly, room-temperature (RT) synthesis of porous CuO nanosheets and their application as a photocatalyst to degrade an organic pollutant/food dye using NaBH4 as the reducing agent in an aqueous medium. Ultrahigh-resolution field effect SEM images of CuO displayed a broken nanosheet-like (a length of ~160 nm, a width of ~65 nm) morphol., and the lattice strain was estimated to be ~1.24 x 10-3 using the Williamson-Hall anal. of X-ray diffraction plots. Owing to the strong quantum size confinement effect, CuO nanosheets resulted in an optical energy band gap of ~1.92 eV, measured using Tauc plots of the UV-visible (UV-vis) spectrum, resulting in excellent photocatalytic efficiency. The RT synthesized CuO catalyst showed a high Brunauer-Emmet-Teller surface area of 30.88 ± 0.2313 m2/g (a correlation coefficient of 0.99972) with an average Barrett-Joyner-Halenda pore size of ~20.385 nm. The obtained porous CuO nanosheets exhibited a high crystallinity of 73.5% with a crystallite size of ~12 nm and was applied as an efficient photocatalyst for degradation of the organic pollutant/food dye, Allura Red AC (AR) dye, as monitored by UV-vis spectrophotometric anal. and evidenced by a color change from red to colorless. From UV-vis spectra, CuO nanosheets exhibited an efficient and ultrafast photocatalytic degradation efficiency of ~96.99% for the AR dye in an aqueous medium within 6 min at RT. According to the Langmuir-Hinshelwood model, photodegradation reaction kinetics followed a pseudo-first-order reaction with a rate constant of k = 0.524 min-1 and a half-life (t1/2) of 2.5 min for AR dye degradation in the aqueous medium. The CuO nanosheets showed an outstanding recycling ability for AR degradation and would be highly favorable and an efficient catalyst due to the synergistic effect of high adsorption capability and photodegradation of the food dye.

This compound(Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate)Recommanded Product: 25956-17-6 was discussed at the molecular level, the effects of temperature and reaction time on the properties of the compound were discussed, and the optimum reaction conditions were selected.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Treatment of the Allura Red food colorant contaminated water by a novel cyanobacterium Desertifilum tharense》. Authors are Gul, Ulkuye Dudu; Senol, Zeynep Mine; Tasstan, Burcu Ertit.The article about the compound:Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonatecas:25956-17-6,SMILESS:O=S(C1=CC=C2C(/N=N/C3=CC(C)=C(S(=O)([O-])=O)C=C3OC)=C(O)C=CC2=C1)([O-])=O.[Na+].[Na+]).Synthetic Route of C18H14N2Na2O8S2. Through the article, more information about this compound (cas:25956-17-6) is conveyed.

The biosorption properties of a newly isolated and identified cyanobacterium called Desertifilum tharense were investigated in the current study. Following morphol. and mol. identification (16S rRNA sequencing anal.), the food colorant removal potential of this new isolate was determined Moreover, the isotherm, kinetic, and thermodn. studies were performed, and also the biosorbent characterization was studied after and before colorant biosorption with Fourier transform IR and SEM anal. Addnl., the changes in chlorophyll content of the biosorbent were examined after and before colorant treatment. The newly isolated cyanobacterial biosorbent removed 97% of Allura Red food colorant/dye at 1,500 mg L-1 initial dye concentration successfully at optimal conditions. Langmuir isotherm and pseudo-second-order kinetic models were fitted with the biosorption of the dye. The D-R model showed that the biosorption process occurred phys. The chlorophyll-a content of the biosorbent was neg. affected by the biosorption. The newly isolated and identified cyanobacterium seems to be a successful candidate for use to treat highly dye concentrated wastewaters.

《Treatment of the Allura Red food colorant contaminated water by a novel cyanobacterium Desertifilum tharense》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate)Synthetic Route of C18H14N2Na2O8S2.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate( cas:25956-17-6 ) is researched.Related Products of 25956-17-6.Cotes, Sandra; LLinas, Humberto; Arrieta, Julio; Espinosa, Alberto published the article 《Evaluation of FD&C Red Number 40 dye concentration and type of gelatin in the dissolution of gelatin sheets》 about this compound( cas:25956-17-6 ) in Journal of Pharmaceutical Sciences and Research. Keywords: gelatin red dye dissolution crosslinking. Let’s learn more about this compound (cas:25956-17-6).

To study the relationship between the type of gelatin and dye concentration in relation to crosslinking in soft capsules. Two types of gelatin, bovine RXL type B 130 Bloom and pig NF type B 150 Bloom, and three concentrations of FD&C Red 40 dye were used in six pre-formulations in six replicates, each for a total of thirty-six trials. Each pre-formulation was analyzed by a sample dissolution test under conditions of natural stability and of 21 days. Using the logistic regression model, it was found that the type of gelatin and dye concentration were statistically significant, while the interactions between them showed no significance. The use of the RXL type B 130 Bloom gelatin in pre-formulation of soft gelatin capsules increases the probability of success with non-crosslinking.

《Evaluation of FD&C Red Number 40 dye concentration and type of gelatin in the dissolution of gelatin sheets》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate)Related Products of 25956-17-6.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Development and validation of a method for ionic dyes determination in guava fibrous matrix using reverse phase chromatography, published in 2021, which mentions a compound: 25956-17-6, Name is Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate, Molecular C18H14N2Na2O8S2, Related Products of 25956-17-6.

In this work, a method for food dyes determination in fibrous fruit pulps was developed. The analytes Tartrazine, Twilight Yellow FCF, Erythrosine, Orange G and Allura Red were analyzed by reverse phase chromatog. with diode array (DAD) detection. The sample preparation consisted of a simple procedure, based on initial pH adjustment of the sample (pH = 10.0), followed by an extraction with acetonitrile (5.0 mL and agitation for 30 s), ultrasonic (5 min) and centrifugation (4000 rpm, 20°C, for 20 min). The supernatant had its pH adjusted to 3.0, followed by filtration. The method was validated, with the anal. curves prepared in a matrix, in the range of 50 to 150 mg kg-1 for all the analytes studied (determination coefficients (R2) > 0.99). The method veracity was evaluated in terms of recovery, obtaining recoveries of 93-110%. The repeatability was less than 13.7%, while the intermediate precision was less than 19.0%. The limits of detection and quantification were determined, being 15 and 30 mg kg-1, resp. The combined relative uncertainties were less than 13.8%. Therefore, it can be concluded that a simple method was developed, suitable for monitoring the presence of dyes in fruit pulps in routine analyzes.

Different reactions of this compound(Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate)Related Products of 25956-17-6 require different conditions, so the reaction conditions are very important.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

HPLC of Formula: 25956-17-6. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate, is researched, Molecular C18H14N2Na2O8S2, CAS is 25956-17-6, about Sulfonated azo dyes enhance the genome release of enterovirus A71 VP1-98K variants by preventing the virions from being trapped by sulfated glycosaminoglycans at acidic pH. Author is Meng, Tao; Wong, Sek-Man; Chua, Kaw-Bing.

Enterovirus A71 (EV-A71) is a causative agent of hand, foot and mouth disease and occasionally causes death in children. Its infectivity and pathogenesis, however, remain to be better understood. Three sulfonated azo dyes, including acid red 88 (Ar88), were identified to enhance the infectivity of EV-A71, especially isolates with VP1-98K, 145E (-KE), by mainly promoting viral genome release in vitro. Enzymic removal of sulfated glycosaminoglycans (GAGs) or knockout of xylosyltransferase II (XT2) responsible for biosynthesis of sulfated GAGs weakened the Ar88 enhanced EV-A71 infection. Ar88 is proposed to prevent the-KE variants from being trapped by sulfated GAGs at acidic pH and to facilitate the viral interaction with uncoating factors for genome release in endosomes. The results suggest dual roles of sulfated GAGs as attachment factors and as decoys during host interaction of EV-A71 and caution that these artificial dyes in our environment can enhance viral infection.

Different reactions of this compound(Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate)HPLC of Formula: 25956-17-6 require different conditions, so the reaction conditions are very important.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

HPLC of Formula: 25956-17-6. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate, is researched, Molecular C18H14N2Na2O8S2, CAS is 25956-17-6, about Decolorization of azo dyes in a heterogeneous persulfate system using FeS as the activator. Author is Li, Haijun; Tang, Chong; Wang, Min; Mei, Changgen; Liu, Na.

Textile effluents containing synthetic refractory azo dyes are one of the most important sources of water pollution. However, these kinds of refractory organic pollutants did not resist a persulfate (PS) oxidation process which was correctly activated. In this study, PS was activated by ferrous sulfide (FeS) in a heterogeneous system to break down azo dyes wastewater. The results showed that all five selected azo dyes were efficiently broken down using the PS/FeS system, except for DY 12, and more than 95% of azo dyes were decolored within 60 min. The decolorization efficiency of DR 81 in the PS/FeS system was comparable to PS activated with heat (60°C) or Fe2+, and was slightly superior to Fe0 powders under the same conditions. Quenching studies indicated that both SO4-• and •OH were formed in the FeS surface and diffused into the solution to facilitate the successive transformation of DR 81, the •OH reaction with DR 81 might the crucial reaction. The coexisting chelating agents in real azo dye effluents at high concentrations had a neg. influence on azo dye decolorization by PS/FeS. However, the superior factor of the PS/FeS system was the regenerability and reusability of the heterogeneous catalyst.

《Decolorization of azo dyes in a heterogeneous persulfate system using FeS as the activator》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate)HPLC of Formula: 25956-17-6.

Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics