Tag: M.W=150-200

In 2020.0 ENVIRON RES published article about BROMINATED FLAME RETARDANTS; POLYCHLORINATED-BIPHENYLS PCBS; THYROID-HORMONE LEVELS; POTENTIAL HEALTH-RISK; WASTE RECYCLING AREA; METABOLITES OH-PBDES; IN-HOUSE DUST; UK HUMAN-MILK; BREAST-MILK; CORD-BLOOD in [Wu, Zhineng; Song, Jie; Li, Huijun; Wu, Weidong] Xinxiang Med Univ, Sch Publ Hlth, Xinxiang 453003, Henan, Peoples R China; [He, Chang] Univ Queensland, QAEHS, Brisbane, Qld 4102, Australia; [Han, Wei] Northeast Agr Univ, Coll Resources & Environm, Harbin 150030, Peoples R China; [Zhang, Yadi] Nankai Univ, Tianjin Key Lab Environm Remediat & Pollut Contro, Key Lab Pollut Proc & Environm Criteria, Coll Environm Sci & Engn,Minist Educ, Tianjin 300350, Peoples R China; [Jing, Xiaohua] Anyang Normal Univ, Sch Chem & Chem Engn, Anyang 455002, Peoples R China in 2020.0, Cited 241.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8. Category: ethers-buliding-blocks

Polybrominated diphenyl ethers (PBDEs) are extensively used as brominated flame retardants (BFRs) in different types of materials, which have been listed as Persistent Organic Pollutants (POPs) by the Stockholm Convention in 2009 and 2017. Due to their ubiquities in the environment and toxicities, PBDEs have posed great threat to both human health and ecosystems. The aim of this review is to offer a comprehensive understanding of the exposure pathways, levels and trends and associated health risks of PBDEs in human body in a global scale. We systematically reviewed and described the scientific data of PBDE researches worldwide from 2010 to March 2020, focusing on the following three areas: (1) sources and human external exposure pathways of PBDEs; (2) PBDE levels and trends in humans; (3) human data of PBDEs toxicity. Dietary intake and dust ingestion are dominant human exposure pathways. PBDEs were widely detected in human samples, especially in human serum and human milk. Data showed that PBDEs are generally declining in human samples worldwide as a result of their phasing out. Due to the common use of PBDEs, their levels in humans from the USA were generally higher than that in other countries. High concentrations of PBDEs have been detected in humans from PBDE production regions and e-waste recycling sites. BDE-47, -153 and -99 were proved to be the primary congeners in humans. Human toxicity data demonstrated that PBDEs have extensively endocrine disruption effects, developmental effects, and carcinogenic effects among different populations.

Welcome to talk about 101-84-8, If you have any questions, you can contact Wu, ZN; He, C; Han, W; Song, J; Li, HJ; Zhang, YD; Jing, XH; Wu, WD or send Email.. Category: ethers-buliding-blocks

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Recommanded Product: Diphenyl oxide. In 2020.0 APPL CATAL B-ENVIRON published article about POLYBROMINATED DIPHENYL ETHERS; GRAPHITIC CARBON NITRIDE; REDUCTIVE DEBROMINATION; HYDROGEN-PRODUCTION; TETRABROMODIPHENYL ETHERS; DECABROMODIPHENYL ETHER; AQUEOUS-SOLUTIONS; DEGRADATION; TIO2; KINETICS in [Lei, Ming; Wang, Zhiying; Nie, Wenshan; Tang, Heqing] South Cent Univ Nationalities, Coll Resources & Environm Sci, Wuhan 430074, Hubei, Peoples R China; [Zhu, Lihua] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Wuhan 430074, Hubei, Peoples R China in 2020.0, Cited 57.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8.

Deep debromination of polybrominated diphenyl ethers (PBDEs) by visible light photocatalysis is still a challenge in the field of halogenated pollutants control. Here, an efficient photocatalyst (Pd/g-C3N4) was prepared by a simple impregnation-chemical reduction method with bulk g-C3N4 and PdCl2 as precursors. Under preferred reaction conditions (visible light irradiation for 120 min), the use of the 0.5% Pd/g-C3N4 composites (0.4 g L-1) yielded an almost complete debromination of BDE47 (10 mu mol L-1) in methanol-water mixture, while the debromination of BDE47 did not occur on pure g-C3N4. A Pd-promoted active H atom species attack and C-Br bond cleavage route was proposed according to the identified degradation intermediates. A catalytic mechanism was further clarified: Pd nanoparticles exerted affinity interaction with bromine atoms, and the storing of electrons on Pd would increase the binding interaction. In the debromination process, methanol acts as both a hole scavenger and a hydrogen donor to provide active H atom species through the reaction of H+ and photogenerated electrons on Pd nanoparticles. The initiation of BDE47 debromination on Pd nanoparticles required an induction period to enrich a critical amount of electrons for stretching the C-Br bond and its subsequent being attacked by active H atoms. The generated 2,2′-dibromodiphenyl ether (BDE4) would be further reduced to bromine-free products by hydro-debromination process or coupling reaction.

Welcome to talk about 101-84-8, If you have any questions, you can contact Lei, M; Wang, ZY; Zhu, LH; Nie, WS; Tang, HQ or send Email.. Recommanded Product: Diphenyl oxide

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Authors Farzana, S; Ruan, YF; Wang, Q; Wu, RB; Kai, Z; Meng, Y; Leung, KMY; Lam, PKS in PERGAMON-ELSEVIER SCIENCE LTD published article about PEARL RIVER DELTA; POLYBROMINATED DIPHENYL ETHERS; CHAIN CHLORINATED PARAFFINS; PERSONAL CARE PRODUCTS; ALTERNATIVE FLAME RETARDANTS; ORGANIC UV-FILTERS; SPATIAL-DISTRIBUTION; PHTHALATE-ESTERS; FRESH-WATER; PERFLUOROALKYL SUBSTANCES in [Farzana, Shazia; Ruan, Yuefei; Wang, Qi; Wu, Rongben; Kai, Zhang; Meng, Yan; Leung, Kenneth M. Y.; Lam, Paul K. S.] City Univ Hong Kong, State Key Lab Marine Pollut SKLMP, Hong Kong, Peoples R China; [Wang, Qi; Wu, Rongben; Lam, Paul K. S.] City Univ Hong Kong, Dept Chem, Hong Kong, Peoples R China; [Leung, Kenneth M. Y.] Univ Hong Kong, Swire Inst Marine Sci, Pokfulam Rd, Hong Kong, Peoples R China; [Leung, Kenneth M. Y.] Univ Hong Kong, Sch Biol Sci, Pokfulam Rd, Hong Kong, Peoples R China; [Ruan, Yuefei; Kai, Zhang; Meng, Yan; Leung, Kenneth M. Y.; Lam, Paul K. S.] Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China in 2020.0, Cited 129.0. SDS of cas: 101-84-8. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

This study aimed to establish marine water quality criteria (MWQC) for emerging chemicals of concern (ECCs) for protecting aquatic life in the Greater Bay Area (GBA) of South China. Despite the frequent occurrence and elevated concentrations of these ECCs in the GBA, there is a lack of regional MWQC for these contaminants. We screened 21 common ECCs that were classified into the following six groups: (1) new persistent organic contaminants; (2) brominated flame retardants; (3) perfluoroalkyl and polyfluoroalkyl substances; (4) pharmaceutically active compounds (PhACs); (5) plasticizers; and (6) personal care products. Globally, MWQC for PhACs remain largely unavailable despite their increasing occurrence in marine environments. Using an integrative scientific approach, we derived interim MWQC for the GBA with specific protection goals. The approach described herein can be applied for the derivation of MWQC for ECCs and the establishment of guidelines for ecological risk assessment in the GBA and other regions.

SDS of cas: 101-84-8. Welcome to talk about 101-84-8, If you have any questions, you can contact Farzana, S; Ruan, YF; Wang, Q; Wu, RB; Kai, Z; Meng, Y; Leung, KMY; Lam, PKS or send Email.

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I found the field of Biochemistry & Molecular Biology; Chemistry very interesting. Saw the article Fuzzy characterization and classification of solvents according to their polarity and selectivity. A comparison with the Snyder approach published in 2020. Quality Control of Benzyl ether, Reprint Addresses Sarbu, C (corresponding author), Babes Bolyai Univ, Fac Chem & Chem Engn, Dept Chem, Arany Janos Str 11, RO-400028 Cluj Napoca, Romania.. The CAS is 103-50-4. Through research, I have a further understanding and discovery of Benzyl ether

Advanced chemometric methods, such as fuzzy c-means, a semi-supervised clustering method, and fuzzy discriminant analysis, a robust supervised method, have been successfully applied for characterization and classification of 72 solvents according to the chemical parameters (P’ and x(i)) developed by Snyder. The obtained results (fuzzy partitions) and parameters of the prototypes (robust fuzzy means) clearly demonstrated the efficiency and information power of the advanced fuzzy methods in solvent characterization and classification, and allow a rationale choice of a good solvent or an efficient mixture of solvents in chromatography and other fields. Also, this methodology generates the premises for future investigations using other different properties of solvents.

Quality Control of Benzyl ether. Welcome to talk about 103-50-4, If you have any questions, you can contact Guidea, A; Sarbu, C or send Email.

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Ether – Wikipedia,
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Category: ethers-buliding-blocks. Authors Sun, J; Hang, TJ; Cao, L; Fan, XL; Feng, YL; Tan, L; Li, KY; Wang, QY; Liu, YX; Yang, GJ in ELSEVIER SCI LTD published article about in [Sun, Jing; Hang, Taijun; Li, Keyu; Wang, Qinyi; Liu, Yingxiang; Yang, Gongjun] China Pharmaceut Univ, Key Lab Drug Qual Control & Pharmacovigilance, Sch Pharm, Minist Educ, Nanjing 211198, Peoples R China; [Sun, Jing; Cao, Ling; Fan, Xialei; Feng, Youlong; Tan, Li] Jiangsu Inst Food & Drug Control, Nanjing 210019, Peoples R China in 2021.0, Cited 69.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

China produces and consumes large quantities of brominated flame retardants (BFRs) as well as several other unregulated electronic waste recycling activities, causing high BFR concentrations in the natural environment. Thus, Traditional Chinese Medicines (TCMs) may be contaminated by legacy BFRs (e.g. polybrominated diphenyl ethers (PBDEs)) and emerging BFRs (eBERs, such as decabromodiphenyl ethane (DBDPE)) during growth, processing, packaging, and transportation. Pheretima, which is a typical animal drug recorded in Chinese Pharmacopoeia, was used as an example to evaluate human exposure to BFRs through TCM intake. This study is the first to determine 25 PBDEs and 5 eBERs in Pheretima and estimate the daily BFR intake via Pheretima-containing TCMs. Twenty-seven Shanghai Pheretima and fifty-one Guang Pheretima samples were collected between March and June 2019 in southeast China. High BFR detection frequencies were found in Pheretima, of which BDE-209 and DBDPE were the most predominant analytes. The total PBDE contents ranged from 73 pg/g to 8,725 pg/g, while that of the eBERs varied between 115 pg/g and 2,824 pg/g. The profiles and abundances were found to be species- and origin-dependent. However, the traditional processing of Pheretima may reduce BFR residues. Based on the usual clinical doses of Pheretima and the available chronic oral reference doses of BDE-47, 99, 153, and 209, the mean (95th percentile) of the total hazard quotient was estimated to be 9.1 x 10(-5) (2.7 x 10(-4)). Therefore, there is little risk related to BFR exposure for patients taking formulated Pheretima-containing TCMs. However, it is necessary to establish routine monitoring programs for the co-existence of pollutants in TCMs to perform a systematic and comprehensive risk assessment. (C) 2021 Elsevier Ltd. All rights reserved.

Welcome to talk about 101-84-8, If you have any questions, you can contact Sun, J; Hang, TJ; Cao, L; Fan, XL; Feng, YL; Tan, L; Li, KY; Wang, QY; Liu, YX; Yang, GJ or send Email.. Category: ethers-buliding-blocks

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Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

An article 1,4-Diphenyltriphenylene grafted polysiloxane as a stationary phase for gas chromatography WOS:000509327200007 published article about POLYCYCLIC AROMATIC-HYDROCARBONS; MASS-SPECTROMETRY; IONIC LIQUIDS; SEPARATION; COLUMNS; SAMPLES in [Xu, Li; Bai, Jianchun; Du, Aiqin; Yang, Zaixiao; Wu, Bo] Shandong Univ, Coll Chem & Chem Engn, 27 Shanda South Rd, Jinan 250100, Peoples R China in 2020, Cited 33. Name: Benzyl ether. The Name is Benzyl ether. Through research, I have a further understanding and discovery of 103-50-4

In this work, 1,4-diphenyltriphenylene-grafted (14.2%) polysiloxane (DPTP) was successfully synthesized and statically coated on capillary columns as a stationary phase for gas chromatography. The DPTP columns exhibited excellent efficiencies of 3646 plates m(-1) for a 30 m column and 3125 plates m(-1) for a 10 m column, as evidenced by naphthalene measurements at 120 degrees C, which demonstrated the good film-forming ability of DPTP. Thermogravimetric analysis showed that the weight of DPTP is reduced by 2% at 380 degrees C. Separation of the polyethylene pyrolysis product indicated that the maximum allowable operating temperature of the DPTP column is 360 degrees C. The moderate polarity of the DPTP column was investigated in terms of McReynolds constants. The DPTP column was utilized to separate analytes, including aromatic isomers, fatty acid esters, ethers, polycyclic aromatic hydrocarbons and their derivatives, and nitrogenous heterocyclic compounds, on the basis of the column’s strong pi-pi stacking, dipole-induced dipole, and dispersion interactions with solutes. In general, the DPTP column offers great potential as a novel stationary phase for separating various analytes due to its special structure and remarkable separation performance.

Name: Benzyl ether. Bye, fridends, I hope you can learn more about C14H14O, If you have any questions, you can browse other blog as well. See you lster.

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Ether – Wikipedia,
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In 2019.0 J AM CHEM SOC published article about BOND-DISSOCIATION ENERGIES; HYDROGEN-ATOM ABSTRACTION; DIRECT ARYLATION; ACTIVATION; OXIDATION; PHOTOCATALYSIS; REACTIVITY; 1,2-DIOLS; RADICALS; SUGARS in [Dimakos, Victoria; Su, Hsin Y.; Garrett, Graham E.; Taylor, Mark S.] Univ Toronto, Dept Chem, 80 St George St, Toronto, ON M5S 3H6, Canada in 2019.0, Cited 53.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8. SDS of cas: 101-84-8

Diphenylborinic acid serves as a cocatalyst for site- and stereoselective C-H alkylation reactions of carbohydrates under photoredox conditions using quinuclidine as the hydrogen atom transfer mediator. Products arising from selective abstraction of the equatorial hydrogens of cis-1,2-diol moieties, followed by C-C bond formation with net retention of configuration, are obtained. Computational modeling supports a mechanism involving formation of a tetracoordinate borinic ester, which accelerates hydrogen atom transfer with the quinuclidine-derived radical cation through polarity-matching and/or ion-pairing effects.

SDS of cas: 101-84-8. Bye, fridends, I hope you can learn more about C12H10O, If you have any questions, you can browse other blog as well. See you lster.

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Ether – Wikipedia,
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An article Quantitative structure-activity and quantitative structure-property relationship approaches as alternative skin sensitization risk assessment methods WOS:000470567200001 published article about LYMPH-NODE ASSAY; ORGANIC OXYGEN COMPOUNDS; THERMODYNAMIC PROPERTIES; HEAT-CAPACITIES; VAPOR-PRESSURES; CONDENSED-PHASE; MELTING-POINT; THERMAL DATA; ENTHALPIES; FUSION in [Kim, Ji Yun; Kim, Min Kook; Kim, Hyung Sik; Lee, Byung-Mu] Sungkyunkwan Univ, Coll Pharm, Div Toxicol, Seobu Ro 2066, Suwon 16419, Gyeonggi Do, South Korea; [Kim, Kyu-Bong] Dankook Univ, Coll Pharm, Cheonan, Chungnam, South Korea in 2019, Cited 82. Computed Properties of C14H14O. The Name is Benzyl ether. Through research, I have a further understanding and discovery of 103-50-4

This study aimed to predict skin sensitization potency of selected chemicals by quantitatively analyzing their physicochemical properties by employing quantitative structure-activity relationship (QSAR) and quantitative structure-property relationship (QSPR) approaches as alternative risk assessment methods to animal testing. Correlations between effective concentration for a stimulation index of 3 (EC3) (%), the amount of a chemical required to elicit a threefold increase in lymph node cell proliferative activity (stimulation index, >= 3), were calculated using local lymph node assay (LLNA) and physicochemical properties of 212 skin sensitizers and 38 non-sensitizers were investigated. The correlation coefficients between melting point (MP) and EC3 and between surface tension (ST) and EC3 were 0.65 and 0.69, respectively. The correlation coefficient for MP + ST and EC3 was estimated to be 0.72. Thus, correlation coefficients between EC3 and MP, ST, and MP + ST reliably predicted the skin sensitization potential of the chemicals with sensitivities of 72% (126/175), 70% (122/174), and 73% (116/158); specificities of 77% (27/35), 69% (22/32), and 81% (26/32); and accuracies of 73% (153/210), 70% (144/206), and 75% (142/190), respectively. Our findings suggest that the EC3 value may be more accurately predicted using the ST values of chemicals as opposed to MP values. Thus, information on MP and ST parameters of chemicals might be useful for predicting the EC3 values as not only an alternative approach to animal testing, but as a risk assessment method for skin sensitization.

Bye, fridends, I hope you can learn more about C14H14O, If you have any questions, you can browse other blog as well. See you lster.. Computed Properties of C14H14O

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Poole, CF in [Poole, Colin F.] Wayne State Univ, Dept Chem, Detroit, MI 48202 USA published Evaluation of the solvation parameter model as a quantitative structure-retention relationship model for gas and liquid chromatography in 2020, Cited 68. HPLC of Formula: C14H14O. The Name is Benzyl ether. Through research, I have a further understanding and discovery of 103-50-4.

The Wayne State University (WSU) experimental descriptor database is utilized to bench mark the current capability of the solvation parameter model for use as a quantitative structure-retention relationship tool for estimating retention in gas and reversed-phase liquid chromatography. The prediction error for the retention factors of varied compounds on six open-tubular columns for gas chromatography (Rtx-5 SIL MS, DB-35 ms, RtxCLPesticides, HP-88, HP-INNOWAX and SLB-IL76) and three packed columns for reversed phase liquid chromatography (SunFire C-18 , XBridge Shield RP18, and XBridge Phenyl) is used to establish expectations related to current practices. Each column data set was divided into a training set for calibration and a test set for validation employing a roughly 1 to 2 split, such that each test set contained about 40 to 80 varied compounds. The average absolute error for the prediction of retention factors by gas chromatography varied from about 0.1 to 0.4 on the retention factor scale with the larger error typical of stationary phases ranked as the most polar (or cohesive). For reversed-phase liquid chromatography the average error for the prediction of retention factors was 0.3 to 0.5 and generally larger than for gas chromatography. Statistical filters where utilized to identify a group of polycyclic aromatic compounds without hydrogen-bonding functional groups with a larger prediction error on the SunFire C-18 column than for other compounds of smaller size, flexible structure or containing hydrogen-bonding functional groups. The heterogeneity of the retention mechanism is speculated to be the main contribution to the prediction error for both gas and liquid chromatography using the solvation parameter model. (C) 2020 Elsevier B.V. All rights reserved.

HPLC of Formula: C14H14O. Welcome to talk about 103-50-4, If you have any questions, you can contact Poole, CF or send Email.

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Recommanded Product: 103-50-4. Authors Woo, S; Nam, D; Chang, W; Ko, Y; Lee, S; Song, Y; Yeom, B; Moon, JH; Lee, SW; Cho, J in WILEY-V C H VERLAG GMBH published article about in [Woo, Seunghui; Nam, Donghyeon; Chang, Woojae; Ko, Younji; Lee, Seokmin; Song, Yongkwon; Cho, Jinhan] Korea Univ, Dept Chem & Biol Engn, 145 Anam Ro, Seoul 02841, South Korea; [Yeom, Bongjun] Hanyang Univ, Dept Chem Engn, 222 Wangsimni Ro, Seoul 04763, South Korea; [Moon, Jun Hyuk] Sogang Univ, Dept Chem & Biomol Engn, Baekbeom Ro 35, Seoul 04107, South Korea; [Lee, Seung Woo] Georgia Inst Technol, George W Woodruff Sch Mech Engn, North Ave NW, Atlanta, GA 30332 USA; [Cho, Jinhan] Korea Univ, KU KIST Grad Sch Converging Sci & Technol, 145 Anam Ro, Seoul 02841, South Korea in 2021, Cited 61. The Name is Benzyl ether. Through research, I have a further understanding and discovery of 103-50-4

Electrical conductivity, mechanical flexibility, and large electroactive surface areas are the most important factors in determining the performance of various flexible electrodes in energy storage devices. Herein, a layer-by-layer (LbL) assembly-induced metal electrodeposition approach is introduced to prepare a variety of highly porous 3D-current collectors with high flexibility, metallic conductivity, and large surface area. In this study, a few metal nanoparticle (NP) layers are LbL-assembled onto insulating paper for the preparation of conductive paper. Subsequent Ni electroplating of the metal NP-coated substrates reduces the sheet resistance from approximate to 10(3) to <0.1 omega sq(-1) while maintaining the porous structure of the pristine paper. Particularly, this approach is completely compatible with commercial electroplating processes, and thus can be directly extended to electroplating applications using a variety of other metals in addition to Ni. After depositing high-energy MnO NPs onto Ni-electroplated papers, the areal capacitance increases from 68 to 811 mF cm(-2) as the mass loading of MnO NPs increases from 0.16 to 4.31 mg cm(-2). When metal NPs are periodically LbL-assembled with the MnO NPs, the areal capacitance increases to 1710 mF cm(-2). Welcome to talk about 103-50-4, If you have any questions, you can contact Woo, S; Nam, D; Chang, W; Ko, Y; Lee, S; Song, Y; Yeom, B; Moon, JH; Lee, SW; Cho, J or send Email.. Recommanded Product: 103-50-4

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem