Category: 25956-17-6

Name: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four 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 Red dye 40 removal by fixed-bed columns packed with alginate-chitosan sulfate hydrogels. Author is Verduzco-Navarro, I. P.; Jasso-Gastinel, C. F.; Rios-Donato, N.; Mendizabal, E..

Modified Chitosan was used for the removal of red dye 40 from aqueous solutions at a pH of 5.0. The adsorption was carried in fixed-bed columns packed with beads of Alginate-Chitosan Sulfate (Alg-ChS) hydrogels. Two columns of 13 and 33 cm of height and two feed rates (20 and 40 mL/h) were used. The pH of the dye solutions at the exit of the columns was much higher than the one registered at the entrance which can be explained by protons transfer from the aqueous solution to the amino and hydroxyl groups of the Alg-ChS and to the carboxilate groups of the alginate. The increase in pH favored the removal of the dye. The breakthrough time and the amount of dye removed decreased when the flow rate was increased. Greater dye removal was achieved when the higher column was used. After the breakthrough time, the columns continued to remove appreciable amounts of dye and even after 50 h of operation, the columns did not reach saturation

As far as I know, this compound(25956-17-6)Name: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.

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

Name: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four 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 Quick monitoring of coloring agents in highly consumed candies using multivariate calibration. Author is Abdelghani, Jafar I.; Al-Degs, Yahya S.; El-Sheikh, Amjad H.; Fasfous, Ismail I.; Al-Asafrah, Ammar A..

Multivariate calibration are gaining popularity in assaying food matrixes. Partial least squares is a powerful multivariate calibration method that used to build a quant. relationship between measured variables and a property of interest (i.e., concentration) of the system under study. Partial least squares PLS calibration along with UV/vis spectral data was efficient to account for indirect food matrix and direct interference effects resulted from overlapping food dyes. PLS was able to quantify tartrazine TAT, allura red AR, sunset yellow SY and brilliant black BB that added to wide selection sugar-based candies. The results indicated that 70% of samples containing single dye while 8% containing TAT-SY mix and certain samples containing TAT + SY + AR + BB. Lollypops were found to contain high levels of AR (77-120 mg/kg) and TAT (56-166 mg/kg). The maximum adulteration was 50% observed in lollypops. PLS calibration was workable to predict colorants with prediction Errors of 7%. Using PLS, dyes were detected down to 0.1 mg/L with acceptable accuracy and precision. PLS showed comparable performance with liquid chromatog. for dyes quantification and can substitute laborious chromatog. for quick detection of coloring agents in candies.

As far as I know, this compound(25956-17-6)Name: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.

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

Name: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate. 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 Biodegradability assessment of food additives using OECD 301F respirometric test. Author is Gatidou, Georgia; Vazaiou, Niki; Thomaidis, Nikolaos S.; Stasinakis, Athanasios S..

The ready biodegradability of twenty food additives, belonging to the classes of artificial sweeteners, natural sweeteners, preservatives and colorings, was investigated using activated sludge as inoculum and OECD 301F respirometric test. According to the results, saccharin, aspartame, sodium cyclamate, xylitol, erythritol, maltitol, potassium sorbate, benzoic acid and sodium ascorbate are characterized as readily biodegradable compounds, partial biodegradation (<60% during the test) was noticed for steviol, inulin, alitame, curcumin, ponceau 4R and tartrazine, while no biodegradation was observed for the other five compounds The duration of lag phase before the start of biodegradation varied between the target compounds, while their ultimate biodegradation half-life values ranged between 0.7 ± 0.1 days (benzoic acid) and 24.6 ± 1.0 days (curcumin). The expected removal of target compounds due to ultimate biodegradation mechanism was estimated for a biol. wastewater treatment system operated at a retention time of one day and percentages higher than 40% were calculated for sodium cyclamate, potassium sorbate and benzoic acid. Higher removal percentages are expected in full-scale Sewage Treatment Plants (STPs) due to the contribution of other mechanisms such as sorption to suspended solids, (bio)transformation and co-metabolic phenomena. Further biodegradation experiments should be conducted under different exptl. conditions for the food additives that did not fulfill the requirements of the applied protocol. Future studies should also focus on the occurrence and fate of food colorants and natural sweeteners in full-scale STPs. As far as I know, this compound(25956-17-6)Name: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.

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

Name: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate. 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 Rapid determination of seven synthetic dyes in casual snacks based on packed-fibers solid-phase extraction coupled with HPLC-DAD. Author is Han, Qing; Sun, Ying; Shen, Kangwei; Yan, Yan; Kang, Xuejun.

Based on packed-fiber solid-phase extraction and HPLC-DAD, a simple anal. method for the determination of seven synthetic dyes has been successfully developed. Polystyrene/polypyrrole (PS/PPy) fibers were obtained via electro-spinning of polystyrene skeletal nanofibers, followed by the oxidation with FeCl3 to trigger the polymerization of pyrrole and the deposition of polypyrrole coatings on PS fibrous skeleton fibers. The relationship between the extraction performance of the fibers and the electrospinning process at different humidities was investigated based on morphol. study and BET surface area. In the extraction process, purification, concentration, and desorption could be accomplished in one step. The established method exhibited good sensitivity, selectivity, reproducibility, and good efficiency for synthetic dyes in casual snacks (preserved fruit, flavored yogurt, and fruity hard candy) samples. With optimal conditions, the LODs (S/N = 3) were 2.4 to 21.09 ng mL-1, and linearities were acceptable in liquid matrix and solid matrixes. The recoveries were 93.9-103.9%.

There are many compounds similar to this compound(25956-17-6)Name: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

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

HPLC of Formula: 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 Performance evaluation of photolytic and electrochemical oxidation processes for enhanced degradation of food dyes laden wastewater. Author is Sartaj, Seema; Ali, Nisar; Khan, Adnan; Malik, Sumeet; Bilal, Muhammad; Khan, Menhad; Ali, Nauman; Hussain, Sajjad; Khan, Hammad; Khan, Sabir.

Wastewater containing dyes is considered as the top-priority pollutant when discharged into the environment. Herein, we report for the applicability of 254 nm UV light and electrochem. process using a titanium ruthenium oxide anode for the degradation of Allura red and erythrosine dyes. During the photolytic process, 95% of Allura red dye (50 ppm) was removed after 1 h at pH 12 and 35°C, whereas 90% color removal of erythrosine dye (50 ppm) was achieved after 6 h of treatment at pH 6.0 and 30°C. On the other hand, 99.60% of Allura red dye (200 ppm) was removed within 5 min by the electrochem. process applying a c.d. (5 mA cm-2) at pH 5.0 and 0.1 mol L-1 sodium chloride (NaCl) electrolytic medium. Similarly, 99.61% of erythrosine dye (50 ppm) degradation was achieved after 10 min at a c.d. of 8 mA cm-2, pH 6.0, and 0.1 mol L-1 of NaCl electrolyte. The min. energy consumption value for Allura red and erythrosine dyes (0.196 and 0.941 kWh m-3, resp.) was calculated at optimum current densities of 5 and 8 mA cm-2. The results demonstrated that the electrochem. process is more efficient at removing dyes in a shorter time than the photolytic process since it generates powerful oxidants like the chlorine mol., hypochlorous acid, and hypochlorite on the surface of the anode and initiates a chain reaction to oxidize the dyes mols.

As far as I know, this compound(25956-17-6)HPLC of Formula: 25956-17-6 can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.

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

Abdelghani, Jafar I.; Al-Degs, Yahya S.; Issa, Ayman A. published the article 《Rapid and reliable chromatograhic method to monitor coloring agents in highly consumed beverages》. Keywords: beverage coloring agent chromatograhic method.They researched the compound: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate( cas:25956-17-6 ).Computed Properties of C18H14N2Na2O8S2. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:25956-17-6) here.

Monitoring food additives including coloring agents is an essential task to estimate the daily intake and exposure assessment toward consumers. A reliable liquid chromatog. procedure was developed to simultaneously monitor six common food dyes (belongs to Group-III additives) in highly consumed powd. soft drinks. The dyes were detected down to 0.23-0.72 mg/L within 15 min. Two popular brands were assayed due to their high consumption rates as confirmed from the initial food consumption questionnaire. In most cases, no pre-concentration step was needed as the level of dyes was high enough to be detected. However, a pre-concentration step was needed for “”brilliant blue”” as it was added to give the natural mint shade. In a few samples, a serious violation for permissible limit was observed Among the studied dyes, sunset yellow was extensively added as the value of 1,054 mg/kg was found. The usage pattern of dyes indicated that only 8% of items containing one dye while 70% containing two or three dyes which is necessary to get the appealing shades. The proposed method could be operated for dyes detection in low-fat foodstuffs. Practical applications : A reliable liquid chromatog. method was developed to monitor six food dyes in highly consumed powd. soft drinks with detection limit down to 0.23-0.72 mg/L in 15 min. Usage pattern of dyes indicated that 8% of items containing one dye and 70% containing two or three dyes.

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

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate(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+],cas:25956-17-6) is researched.Safety of Tin(II) oxalate. The article 《Production of colorant powder from dragon fruit (Hylocerecus polyrhizus) peel: Bioactivity, heavy metal contamination, antimutagenicity, and antioxidation aspects》 in relation to this compound, is published in Journal of Food Processing and Preservation. Let’s take a look at the latest research on this compound (cas:25956-17-6).

This study explores the bioactivity, heavy metal contamination, antimutagenicity, and antioxidation aspects of a colorant powder (CP) derived from dragon fruit peels (DGFP) following a two-step process: extraction and creation of colorant powder. Extraction with deionized water at pH 5.5, 40°C for 20 min provided betacyanin content in the crude extract at 15.21 ± 0.04 mg/g dry weight with betanin and phyllocactin as the main bioactive components. The extract antimutagenicity was found to be 0.522 mg GAE/mL. The extract was mixed with 6% maltodextrin and dried to produce CP using a spray dryer with a feed rate of 6 mL/min and a 160°C inlet temperature The powder was red and no heavy metal was detected using ICP-OES. The CP was proven to possess antioxidant activity as confirmed by DPPH, ABTS+, and FRAP assay. Thus, DGFPs should be recognized as a valuable byproduct with added value as a food colorant. The crude extract from the dragon fruit peels contained betacyanin at 15.21 ± 0.04 mg/g dry weight The extract possessing betanin and phyllocactin as the main bioactive compounds was found to be mutagenic safe. After the extract was spray-dried with 6% maltodextrin to produce the colorant powder, the betacyanin content was reduced around twofold from the original content. However, the antioxidant activity still existed in the powder with no heavy metal contamination. Thus, the dragon fruit peels have a high potential for practical application as a safe food colorant.

In addition to the literature in the link below, there is a lot of literature about this compound(Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate)Recommanded Product: 25956-17-6, illustrating the importance and wide applicability of this compound(25956-17-6).

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

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 25956-17-6, is researched, Molecular C18H14N2Na2O8S2, about Toxicity Assessment of 4 Azo Dyes in Zebrafish Embryos, the main research direction is Danio tartrazine amaranth Allura red azo dyes embryo toxicity; azo dyes; color additives; developmental toxicity; zebrafish.SDS of cas: 25956-17-6.

Azo dyes are used widely as color additives in food, drugs, and cosmetics; hence, there is an increasing concern about their safety and possible health hazards. In the present study, we chose 4 azo dyes tartrazine, Sunset Yellow, amaranth, and Allura red and evaluated their developmental toxicity on zebrafish embryos. At concentration levels of 5 to 50 mM, we found that azo dyes can induce hatching difficulty and developmental abnormalities such as cardiac edema, decreased heart rate, yolk sac edema, and spinal defects including spinal curvature and tail distortion. Exposure to 100 mM of each azo dye was completely embryolethal. The median lethal concentration (LC50), median effective concentration (EC50), and teratogenic index (TI) were calculated for each azo dye at 72 h postfertilization. For tartrazine, the LC50 was 47.10 mM and EC50 value was at 42.66 mM with TI ratio of 1.10. For Sunset Yellow, the LC50 was 38.93 mM and EC50 value was at 29.81 mM with TI ratio of 1.31. For amaranth, the LC50 was 39.86 mM and EC50 value was at 31.94 mM with TI ratio of 1.25. For Allura red, the LC50 was 47.42 mM and EC50 value was 40.05 mM with TI ratio of 1.18. This study reports the developmental toxicity of azo dyes in zebrafish embryos at concentrations higher than the expected human exposures from consuming food and drugs containing azo dyes.

In addition to the literature in the link below, there is a lot of literature about this compound(Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate)SDS of cas: 25956-17-6, illustrating the importance and wide applicability of this compound(25956-17-6).

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

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 25956-17-6, is researched, Molecular C18H14N2Na2O8S2, about Degradation of various azo dyes by the help of nZVI immobilized in agarose membrane, the main research direction is methyl orange allura red tartrazine iron agarose degradation.Synthetic Route of C18H14N2Na2O8S2.

Refractory azo-dye compounds used in the textile industry are commonly detected in wastewater. In this study, the decolorization of methyl orange (MO) and several food dyes have been studied by diethylene triamine penta acetic acid (DTPA) stabilized nanoscale zero valent iron (nZVI) particles immobilized in agarose membrane (Im-nZVI-AM). The decolorization rate has been studied with respect to the dosage of nZVI particles and temperature The degradation of dyes have been studied by measuring the change in ac conductivity of the initial and final dye solution The decolorization rate increases with the increasing of nZVI particles dosage and temperature of the dye solution 50% hydrogen peroxide (H2O2) concentration has been used to increase the efficiency of degradation In this study Im-nZVI-AM has been used multiple times to treat the wastewater.

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

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 25956-17-6, is researched, Molecular C18H14N2Na2O8S2, about An optimization approach for fast, simple and accurate determination of indigo-carmine in food samples, the main research direction is indigo carmine natural deep eutectic solvent microextraction; Central composite design; Experimental modelling; Food samples; Indigo-carmine; Natural deep eutectic solvents; Spectrophotometry.Reference of Sodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl)naphthalene-2-sulfonate.

This study report optimization of vortex-assisted natural deep eutectic solvent based liquid-phase microextraction (VA-NADES-LPME) for determination of indigo-carmine in some food samples by UV-Visible spectrophotometer. To ensure efficient extraction, nine different NADES were prepared and tested for the extraction of indigo-carmine. In order to increase extraction efficiency of indigo-carmine, the effects of VA-NADES-LPME variables and their interactions were optimized with central composite design. The optimized method exhibited a linear range between 10 and 900 ng mL-1. Limit of detection, limit of quantification and enrichment factor were determined as 3.3 ng mL-1, 10 ng mL-1 and 135-fold, resp. The applicability of the optimized method was investigated in selected food samples using the matrix-matching calibration curve. Using optimized exptl. conditions (pH of 3.2, 75μL of NADES-4, 285μL of THF, and 4 min vortexing), satisfactory recovery results were found in the range of 95.9-104.2% with 1.4-3.7% of relative standard deviation. Finally, the optimized method was economical, simple, green, requires less laborious sampling, and provides superior accuracy and precision in trace-level anal.

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