Category: 119-47-1

Related Products of 119-47-1In 2022, Shi, Jinyu;Sun, Dezhi;Dang, Yan;Qu, Dan published 《Characterizing the degradation of refractory organics from incineration leachate membrane concentrate by VUV/O₃》. 《Chemical Engineering Journal (Amsterdam, Netherlands)》published the findings. The article contains the following contents:

In this study, we used a combined vacuum-UV (VUV) and O₃ process treating the chem. precipitation pre-treated incineration leachate membrane concentrate to further decompose substantial refractory organics which led to membrane organic fouling in the subsequent membrane distillation process. The highest removal of COD (88.1%) was achieved when 50 mg/min of O₃ dosage was used at a pH of 11.5-12. Multi-spectrum methods, mol. weight distribution (MW), gas chromatog.-mass spectrometry (GC-MS), two-dimensional correlation spectroscopy (2D-COS), and hetero-spectral 2D-COS were used to investigate the organics degradation mechanism. The combined action of O₃ and hydroxyl radicals (·OH) effectively degraded macromol. organics with high aromaticity and high conjugation (mainly distributed at 1-3 kDa) into aliphatic products with lower mol. weight (<1 kDa) and simple structures. The order of organics that were oxidized were humic-like acids > fulvic-like acids > protein-like substances. Organic acids (acetate, propionate, and butyrate) also accumulated in the VUV/O₃ systems. And 2,2-Methylenebis(6-tert-butyl-p-cresol) (cas: 119-47-1) was used in the research process.

Related Products of 119-47-12,2′-Methylenebis(4-methyl-6-tert-butylphenol)(CAS: 119-47-1) is a natural product found in Streptomyces and Aspergillus fumigatus .

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Seyidoglu, Tijen;Bohn, Manfred A. published 《Effects of four isocyanates and four plasticizers on the thermomechanical and tensile properties of hydroxyl-terminated polybutadiene elastomers and the effect of solid particle filling》. The research results were published in《Journal of Applied Polymer Science》 in 2021.Name: 2,2-Methylenebis(6-tert-butyl-p-cresol) The article conveys some information:

The aim of this study is to analyze effect of four different isocyanates and four different plasticizers in hydroxyl-terminated polybutadiene (HTPB) based elastomers by quant. anal. of the shape of the loss factor (tan δ), tensile strength, deformation frequency shift of the maximum temperatures of loss moduli G” and of tan δ. The first part of the study shows intensities of the tan δ curves with the four isocyanates follow the order HDI > IPDI > H12MDI > Desmodur E305. By mol. modeling of the isocyanates and the corresponding polyurethane parts the influence of mol. geometry on tan δ are discussed. The second part of the study analyzes HTPB-IPDI elastomers with the four different plasticizers DOA, DOS, DOZ, and IDP. The IDP provides lowest T_g at about -83°C, while the others provide at about -78°C. In the third part, aluminum (Al-18μm) and ammonium perchlorate (AP-200μm) are added to HTPB-IPDI+DOA to analyze the effect of particle size, wt% content and particle type on the shape and intensity of the tan δ curves. From the frequency shift of the two maximum temperatures one receives activation energies Eaf. Their average values without and with plasticizer are with tan δ 178 and 165 kJ/mol and with G” 274 and 248 kJ/mol, resp. To complete the study, the researchers used 2,2-Methylenebis(6-tert-butyl-p-cresol) (cas: 119-47-1) .

Name: 2,2-Methylenebis(6-tert-butyl-p-cresol)2,2′-Methylenebis(4-methyl-6-tert-butylphenol)(CAS: 119-47-1) is a natural product found in Streptomyces and Aspergillus fumigatus .

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HPLC of Formula: 119-47-1《The High Complexity of Plastic Additives in Hand Wipes》 was published in 2021. The authors were Chen, Yukun;Shi, Yumeng;Liu, Xiaotu;Liu, Runzeng;Chen, Da, and the article was included in《Environmental Science & Technology Letters》. The author mentioned the following in the article:

Extensive and long-term applications have resulted in global distributions of plastic additives (PAs). To facilitate the understanding of human exposure to PAs, the present study investigated the abundances and profiles of a broad range of PAs on human hands via hand wipe sampling. Sixty out of 160 PAs were detected in >50% of hand wipes collected from 30 children and 45 adults, among which a number of organophosphate esters (OPEs) and synthetic antioxidants that have rarely or never been investigated in prior studies. The total masses of PAs ranged from 650 to 87 030 ng (median: 6110 ng) and 1230 to 19360 ng (median: 5600 ng) in adults′ and children′s hand wipes, resp. By categories, phthalates (PAEs) represented the most abundant group of PAs, followed by non-PAE plasticizers, UV stabilizers, OPEs, antioxidants, and bisphenol analogs. Children exhibited greater PA levels per square centimeter of hand surface, indicating elevated exposure compared with adults. Strong correlations existed for many PAs between adults and children or within each subpopulation, indicating close connections between the two subpopulations in the exposure profiles. The great complexity of plastic additives on hands raises the need for future investigations on human exposure pathways and potential health risks from the “cocktail” effects. The experimental procedure involved many compounds, such as 2,2-Methylenebis(6-tert-butyl-p-cresol) (cas: 119-47-1) .

HPLC of Formula: 119-47-12,2′-Methylenebis(4-methyl-6-tert-butylphenol)(CAS: 119-47-1) is a natural product found in Streptomyces and Aspergillus fumigatus .

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COA of Formula: C23H32O2In 2021, Pontoni, Ludovico;Roviello, Valentina;Race, Marco;Savignano, Luigi;van Hullebusch, Eric D.;Esposito, Giovanni;Pirozzi, Francesco;Fabbricino, Massimiliano published 《Supramolecular aggregation of colloidal natural organic matter masks priority pollutants released in water from peat soil》. 《Environmental Research》published the findings. The article contains the following contents:

Natural organic matter (NOM) from Sphagnum peat soil is extracted in water and subjected to several investigations to obtain structural and conformational information. Data show that the extracted NOM is self-organized in colloidal aggregates of variable sizes (from nano to micro scales, depending on the solvent composition, i.e., ultrapure water, solutions with denaturing agents, acetone, ethanol). Aggregates are formed by highly heterogeneous classes of organic compounds According to the results of NMR and fluorescence measurements, the three-dimensional structure of aggregates, revealed by scanning electron microscope imaging, is supposed to be stabilized by the exposition of polar functional groups to the solvent, with consequent formation of hydrogen bonds, dipole-interactions and cation bridging. In contrast, the inner part of the aggregates displays hydrophobic features and is hypothesized to be further reinforced by the establishment of π-stacking interactions. The structure is assumed to be a supramol. aggregation of small-medium oligomeric fragments (Max 750 Da) in which priority pollutants are entrapped by dispersive forces. The structures are shown to be nanosized spheroidal particles further aggregated to form higher dimension supra-structures. Carbohydrates play primary role, stabilizing the structure and giving marked hydrophilic properties to the aggregates. And 2,2-Methylenebis(6-tert-butyl-p-cresol) (cas: 119-47-1) was used in the research process.

COA of Formula: C23H32O22,2′-Methylenebis(4-methyl-6-tert-butylphenol)(CAS: 119-47-1) is a natural product found in Streptomyces and Aspergillus fumigatus .

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Product Details of 119-47-1《GC-MS analysis of chemical constituents and determination of the total antioxidant capacity of adult powder of Periplaneta americana》 was published in 2022. The authors were Yang, Zhen;Xie, Jiqin;Huang, Feiyun;Yang, Yu;Zhang, Xiuyue;Yue, Bisong, and the article was included in《Entomological Research》. The author mentioned the following in the article:

Edible insects are alternative sources of high protein. Southeast Asia, South America, Africa, and Europe have recorded edible insects and, especially in Europe and America, there are factories that produce insects as food. In some areas of China, there has also been the habit of eating insects since ancient times. Periplaneta americana is an insect with the homol. of medicine and food. In recent years, its medicinal and nutritional functions have attracted extensive attention and research. Its adult powder has been certified as a health product. It not only contains a variety of proteins but also is rich in fatty acids. The composition and antioxidant function of adult powder extract was analyzed in this study. Using adult P. americana powder as the raw material, it was extracted with n-Hexane, dichloromethane, and Et acetate, resp. Gas chromatog.-mass spectrometry (GC-MS) removed a total of 60 compounds, and many active components were extracted from P. americana powder for the first time. The parts and relative content of each extracted sample were obtained, and the total antioxidant capacity (T-AOC) of each extracted piece was determined, among which the antioxidant activity of Et acetate was the highest.2,2-Methylenebis(6-tert-butyl-p-cresol) (cas: 119-47-1) were involved in the experimental procedure.

Product Details of 119-47-12,2′-Methylenebis(4-methyl-6-tert-butylphenol)(CAS: 119-47-1) is a natural product found in Streptomyces and Aspergillus fumigatus .

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Palvoelgyi, Adam Mark;Smith, Jakob;Schnuerch, Michael;Bica-Schroeder, Katharina published 《Counterion-Enhanced Pd/Enamine Catalysis: Direct Asymmetric α-Allylation of Aldehydes with Allylic Alcohols by Chiral Amines and Achiral or Racemic Phosphoric Acids》. The research results were published in《Journal of Organic Chemistry》 in 2021.Safety of 2,2-Methylenebis(6-tert-butyl-p-cresol) The article conveys some information:

We report a straightforward and efficient Pd/enamine catalytic procedure for the direct asym. α-allylation of branched aldehydes. The use of simple chiral amines and easily prepared achiral or racemic phosphoric acids, together with a suitable Pd-source resulted in a highly active and enantioselective catalyst system for the allylation of various α-branched aldehydes with different allylic alcs. The reported procedure could provide an easy access to both product antipodes. Furthermore, two possible orthogonal derivatizations of the enantioenriched aldehydes were performed without any decrease in enantioselectivity. And 2,2-Methylenebis(6-tert-butyl-p-cresol) (cas: 119-47-1) was used in the research process.

Safety of 2,2-Methylenebis(6-tert-butyl-p-cresol)2,2′-Methylenebis(4-methyl-6-tert-butylphenol)(CAS: 119-47-1) is a natural product found in Streptomyces and Aspergillus fumigatus .

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Zhu, Shu;Cheng, Geng;Quan, Xuejun;Jiang, Ziwen;Chen, Hao;Cheng, Zhiliang;Qiu, Facheng published 《Comparative study on COD removal from reverse osmosis concentrate using two physicochemical combined processes》 in 2022. The article was appeared in 《Journal of Cleaner Production》. They have made some progress in their research.Name: 2,2-Methylenebis(6-tert-butyl-p-cresol) The article mentions the following:

Reverse osmosis concentrate (ROC) produced from landfill leachate contains a substantial fraction of refractory organics with low biodegradability that is challenging for conventional wastewater treatment methods. To achieve high-efficiency ROC degradation, two physicochem. combined processes, i.e. ceramic membrane/ozone-nanofiltration (CM/O₃+NF) and Ca(OH)₂ coagulation-ceramic membrane/ozone-nanofiltration (Ca(OH)₂+CM/O₃+NF) were proposed. In this study, the removal efficiency of organic pollutants in process 1 (CM/O₃+NF) and process 2 (Ca(OH)₂+CM/O₃+NF) was investigated, resp. The results showed that process 1 and process 2 were both sufficient to eliminate the refractory COD, the permeates have a COD lower than the requirements for discharge. But the process 2 had a better performance than that of process 1. The COD and TOC of ROC decreased from 2500 mg/L and 1050 mg/L to 20.23 mg/L and 8.26 mg/L after process 2 treatment, and the removal efficiency was 1.9% and 4.04% higher than those of process 1, resp. In process 2, Ca(OH)₂ flocculation significantly improves the oxidation effect of CM/O₃, effectively shortens the oxidation time by 25%, improves the membrane flux of the ceramic membrane, and reduces the treatment cost of the ROC. Furthermore, the change of the composition of the macromol. organics in the ROC during the treatment of process 1 and process 2 was compared and explored through anal. by UV254, 3D-EEM, GC-MS. The results indicated that the types of organic matter in the ROC treated by Process 2 decreased from 27 to 8, which was 5 less than that of Process 1. Ca(OH)₂ flocculation in process 2 significantly reduces the content of macromol. humic acid in ROC, especially has a good flocculation effect on lipids, aldehydes, carboxylic acids, ketones and other substances containing carbon-oxygen double bonds. At the same time, Ca(OH)₂ provides an alk. environment and strengthens the decomposition ability of alkanes, alkenes, and aromatics in ROC into more soluble byproducts by CM/O₃. The remaining pollutants that are difficult to be oxidized are effectively filtered by NF. Overall, the Ca(OH)₂+CM/O₃+NF process with complementary functions has great potential in realizing effective ROC treatment. And 2,2-Methylenebis(6-tert-butyl-p-cresol) (cas: 119-47-1) was used in the research process.

Name: 2,2-Methylenebis(6-tert-butyl-p-cresol)2,2′-Methylenebis(4-methyl-6-tert-butylphenol)(CAS: 119-47-1) is a natural product found in Streptomyces and Aspergillus fumigatus .

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Category: alcohols-buliding-blocksIn 2021, Tan, Hongli;Yang, Liu;Huang, Yichao;Tao, Lin;Chen, Da published 《”Novel” Synthetic Antioxidants in House Dust from Multiple Locations in the Asia-Pacific Region and the United States》. 《Environmental Science & Technology》published the findings. The article contains the following contents:

Synthetic antioxidants represent a complex group of additive chems. broadly used in consumer products. While traditional antioxidants such as 2,6-di-tert-butyl-4-methylphenol (BHT) were well studied, a variety of “novel” antioxidants have emerged with extensive applications but received much less attention. Our study aimed to explore a suite of 34 emerging antioxidants in house dust from four different regions, including Guangzhou (China), Adelaide (Australia), Carbondale (Illinois), and Hanoi (Vietnam). The results revealed broad occurrence of several rarely investigated chems. in house dust across regions, including triethylene glycol bis(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate (AO245), 2,6-di-tert-butyl-4-(dimethylamino)methylphenol (AO4703), 2,2′-thiene-2,5-diylbis(5-tert-butyl-1,3-benzoxazole) (BBOT), 1,3-diphenylguanidine (DPG), 2,4-bis(1,1-dimethylethyl)phenol (2,4DtBP), and 2,6-bis(1,1-dimethylethyl)phenol (2,6DtBP). In particular, DPG exhibited a median concentration of 5030-11 400 ng/g in house dust from the studied regions except for Hanoi (305 ng/g), generally 1 order of magnitude greater than that of BHT (890-1060 ng/g) and dominating the compositional profiles of antioxidants. Estimated intake of target antioxidants by toddlers via dust ingestion, even under the high exposure scenario, was determined to be 2-4 orders of magnitude lower than the reference doses of selected antioxidants. However, potential risks from long-term exposure to a cocktail of antioxidants under environmentally relevant concentrations merit further investigations due to insufficient knowledge on the sources, fate, and toxicokinetics of these chems. to date. And 2,2-Methylenebis(6-tert-butyl-p-cresol) (cas: 119-47-1) was used in the research process.

Category: alcohols-buliding-blocks2,2′-Methylenebis(4-methyl-6-tert-butylphenol)(CAS: 119-47-1) is a natural product found in Streptomyces and Aspergillus fumigatus .

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Ali, Safaa H.;Shephard, Angus C. G.;Wang, Jun;Guo, Zhifang;Davies, Murray S.;Deacon, Glen B.;Junk, Peter C. published 《Lanthanoid Biphenolates as a Rich Source of Lanthanoid-Main Group Heterobimetallic Complexes》 in 2022. The article was appeared in 《Chemistry – An Asian Journal》. They have made some progress in their research.Quality Control of 2,2-Methylenebis(6-tert-butyl-p-cresol) The article mentions the following:

Several new trivalent dinuclear rare earth 2,2′-methylenebis(6-tert-butyl-4-methylphenolate) (mbmp^2-) complexes with the general form [Ln₂(mbmp)₃(thf)_n] (Ln=Sm (1), Tb (2) (n=3), and Ho (3), Yb (4) (n=2)), and a tetravalent cerium complex [Ce(mbmp)₂(thf)₂] (5) have been synthesized by RTP (redox transmetallation/protolysis) reactions from lanthanoid metals, Hg(C₆F₅)₂ and the biphenol mbmpH₂. These new complexes and some previously reported partially protonated rare earth biphenolate complexes [Ln(mbmp)(mbmpH)(thf)_n] react with lithium, aluminum, potassium and zinc organometallic reagents to form lanthanoid-main group heterobimetallic species. When reaction mixtures containing the Ln biphenolate complexes were treated with n-butyllithium, both mol. [Li(thf)₂Ln(mbmp)₂(thf)_n] (Ln=La (6), Pr (7) (n=2) and Er (8), Yb (9), and Lu (10) (n=1)) and charge separated [Li(thf)₄][Ln(mbmp)₂(thf)₂] (Ln=Y (11), Sm (12), Dy (13), and Ho (14)) complexes were isolated. Treatment with trimethylaluminium also led to isolation of mol. ([AlMe₂Ln(mbmp)₂(thf)₂] (Ln=Pr (15), Sm (16), and Tb (17))) and ionic [La(mbmp)(thf)₅][AlMe₂(mbmp)] (18) complexes. One gadolinium-potassium ([K(thf)₃Gd(mbmp)₂(thf)₂] (19)), and one ytterbium-zinc species ([ZnEtYb(mbmp)₂(thf)] (20)) were isolated from treatment of reaction mixtures with potassium bis(trimethylsilyl)amide and diethylzinc resp. To complete the study, the researchers used 2,2-Methylenebis(6-tert-butyl-p-cresol) (cas: 119-47-1) .

Quality Control of 2,2-Methylenebis(6-tert-butyl-p-cresol)2,2′-Methylenebis(4-methyl-6-tert-butylphenol)(CAS: 119-47-1) is a natural product found in Streptomyces and Aspergillus fumigatus .

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Moni, Sivakumar Sivagurunathan;Alam, Mohammad Firoz;Makeen, Hafiz A.;Alhazmi, Hassan A.;Sultan, Muhammad;Siddiqui, Rahimullah;Jabeen, Aamena;Sanobar, Syeda;Alam, Shamsher Md.;Ur Rehman, Zia;Elmobark, Mohamed Eltyep;Madkhali, Osama;Haque, Anzarul;Albratty, Mohammed published 《Solvent extraction, spectral analysis and antibacterial activity of the bioactive crystals of Sargassum aquifolium (Turner) C.Agardh from Red Sea》 in 2021. The article was appeared in 《Natural Product Research》. They have made some progress in their research.Name: 2,2-Methylenebis(6-tert-butyl-p-cresol) The article mentions the following:

The purpose of this study was to investigate the chem. composition and anti-bacterial properties of the bioactive principles of Sargassum aquifolium (Turner) C. Agardh, a brown seaweed in Red sea of Jazan province, Kingdom of Saudi Arabia. Crystals were obtained from the petroleum ether extract of Sargassum aquifolium and subjected to chem. tests, FTIR spectroscopic anal. and NMR anal. to identify their chem. composition, and to study their antibacterial properties against selected human pathogenic bacteria. In addition, GC-MS anal. was performed to identify the bioactive compounds in the crude petroleum ether extract Results of the antibacterial effect of the crystal analyte showed a wide spectrum of activity against the screened human pathogenic bacteria. To complete the study, the researchers used 2,2-Methylenebis(6-tert-butyl-p-cresol) (cas: 119-47-1) .

Name: 2,2-Methylenebis(6-tert-butyl-p-cresol)2,2′-Methylenebis(4-methyl-6-tert-butylphenol)(CAS: 119-47-1) is a natural product found in Streptomyces and Aspergillus fumigatus .

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