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Quality Control of trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochlorideOn May 31, 2019, Dong, Xiaorong; Li, Ma; Liu, Xuefeng; Jiang, He published an article in Pakistan Journal of Pharmaceutical Sciences. The article was 《Effects of dexamethasone combined with ambroxol hydrochloride on T-Cell subsets and hearing in patients with secretory otitis media》. The article mentions the following:

The aim of the study was to investigate the effect of dexamethasone combined with ambroxol hydrochloride on T cell subsets and hearing in patients with secretory otitis media. Eighty-six cases of patients with secretory otitis media admitted to “”Gansu Provincal Hospital, Lanzhou, China”” from Sept. 2016 to Sept. 2018 were regarded as subjects of the study. The patients were divided in two groups according to the digital table method. Among them, the control group was treated with ambroxol hydrochloride, while the study group was treated with dexamethasone combined with ambroxol hydrochloride. The clin. efficacy, T cytokines before and after treatment, auditory threshold and middle ear resonance frequency were observed and compared between the two groups of the patients. SPSS 18.0 software was used to statistically analyze the data. The therapeutic efficacy of the study group was better than that of the control group and the levels of CD4+, CD417CD8+ after treatment of the study group were higher than that of the control group (P<0.05), while the content of CD8+ in the study group was lower than that in the control group (P<0.05). In addition, the auditory threshold of the study group was lower than that of the control group (P<0.05), whereas the middle ear resonance frequency was higher than that of the control group (P<0.05). The application of dexamethasone combined with ambroxol hydrochloride improved the clin. symptoms and restored hearing in the clin. treatment of patients with secretory otitis media and the therapeutic efficacy was ideal. In the experimental materials used by the author, we found trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride(cas: 23828-92-4Quality Control of trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride)

trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride(cas: 23828-92-4) is a medication indicated to alleviate chest congestion associated with conditions that include bronchitis, pneumonia, bronchospasm asthma, cough, and allergy.Quality Control of trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride Preclinically, ambroxol, the active ingredient of Mucosolvan, has been shown to increase respiratory tract secretion.

Referemce:
Alcohol – Wikipedia,
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Synthetic Route of C13H19Br2ClN2OOn October 1, 2021 ,《Potential pharmacokinetic interaction between orally administered drug and osmotically active excipients in pediatric polypharmacy》 was published in European Journal of Pharmaceutical Sciences. The article was written by Matsui, Kazuki; Nakagawa, Tomoya; Okumura, Tomonori; Yamane, Miki; Tokunaga, Yuji; Yokota, Shoji. The article contains the following contents:

Poorly absorbable sugar alcs. (e.g., mannitol, sorbitol, and maltitol) are the excipients frequently contained in pediatric dosage forms. Due to their osmotically active properties, certain amount of sugar alcs. reportedly reduces oral bioavailability of concomitant drugs. This fact implies the possible pharmacokinetic interaction between orally administered drug and sugar alcs. which are present in other concomitant medications. The purpose of this study was to identify the possibility and likeliness of the osmotically active excipient-induced pharmacokinetic interaction in pediatric polypharmacy. Previously developed in silico model that captured the osmotic effect of sugar alcs. in adults was expanded to pediatric population. This math. model successfully explained the impaired bioavailability of lamivudine by the co-administered sorbitol in other dosage forms. In the meantime, sugar alc. contents in marketed pediatric dosage forms were investigated by reverse engineering technol. Considering the critical administration dose of sugar alcs. estimated by in silico model, it was revealed that 25 out of 153 pediatric dosage forms were identified as possible perpetrators even under the approved administration and dosage in Japan. This study shed light on the potential pharmacokinetic interaction that cannot be dismissed throughout the pediatric pharmaceutical dosage form design and development. In the experimental materials used by the author, we found trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride(cas: 23828-92-4Synthetic Route of C13H19Br2ClN2O)

trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride(cas: 23828-92-4) enhances pulmonary surfactant production and stimulates ciliary activity.Synthetic Route of C13H19Br2ClN2O It promotes mucus clearance, facilitates expectoration and eases productive cough, allowing patients to breathe.

Referemce:
Alcohol – Wikipedia,
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Reference of (R)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diolOn October 18, 2004 ,《Synthesis and characterization of alkyllanthanum biphenolate complexes as catalysts for hydroamination/cyclization and hydrosilylation》 was published in European Journal of Inorganic Chemistry. The article was written by Gribkov, Denis V.; Hampel, Frank; Hultzsch, Kai C.. The article contains the following contents:

The homochiral, dimeric biphenolate alkyllanthanum complex [La{(R)-Biphen}{CH(SiMe3)2}]2 can be prepared by facile alkane elimination starting from [La{CH(SiMe3)2}3] and enantiopure (R)-3,3′-di-tert-butyl-5,5′,6,6′-tetramethyl-1,1′-biphenyl-2,2′-diol [H2{(R)-Biphen}]. Single-crystal x-ray diffraction revealed that the two La{(R)-Biphen}{CH(SiMe3)2} fragments are connected through bridging phenolate groups of the biphenolate ligands. The two different phenolate groups undergo an intramol. exchange process in solution leading to their equivalence on the NMR time scale. The biphenolate alkyl complex shows high catalytic activity for hydroamination/cyclization of aminoalkenes, similar to previously known lanthanocene catalysts, but only low enantio-selectivity. Addition of THF to [La{(R)-Biphen}{CH(SiMe3)2}]2 leads to a monomeric tris-THF adduct [La{(R)-Biphen}{CH(SiMe3)2}(THF)3] with higher catalytic activity than the THF-free homochiral dimer in the cyclization of 2,2-dimethylpent-4-enylamine, suggesting that the dimeric structure of the catalyst system prevails under catalytic conditions in the absence of THF. Addition of HN(SiHMe2)2 to [La{(R)-Biphen}{CH(SiMe3)2}(THF)3] results in the formation of [La{(R)-Biphen}{N(SiHMe2)2}(THF)3] which is in equilibrium with its homochiral dimer [La{(R)-Biphen}{N(SiHMe2)2}(THF)]2 at elevated temperatures The biphenolate alkyl complexes exhibit good catalytic activity and diastereoselectivity in the hydrosilylation of styrene. Hydrosilylation of 1-hexene and norbornene also proceeds with high diastereoselectivity but rather low activity. In the part of experimental materials, we found many familiar compounds, such as (R)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol(cas: 329735-68-4Reference of (R)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol)

(R)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol(cas: 329735-68-4) belongs to phenols. Phenols are more acidic than typical alcohols.Reference of (R)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol The acidity of the hydroxyl group in phenols is commonly intermediate between that of aliphatic alcohols and carboxylic acids (their pKa is usually between 10 and 12).

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Reference of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraolOn September 15, 2019 ,《A polysaccharide found in Dendrobium nobile Lindl stimulates calcium signaling pathway and enhances tobacco defense against TMV》 was published in International Journal of Biological Macromolecules. The article was written by Li, Zhurui; Shi, Jing; Hu, Deyu; Song, Baoan. The article contains the following contents:

A neutral polysaccharide separated from Dendrobium nobile Lindl was designated as DNPE6(4). It was structurally characterized using a combination of spectral and chem. anal. Its average mol. weight was 99.2 kDa. The monosaccharide composition was Araf, Glcp, Galp, and Manp in a molar ratio of 2.5:0.9:0.3:0.8. Their linkage types were (→1)-L-Araf-(3→, →1)-D-Glcp-(4→, →1)-D-Galp-(3→, →1)-D-Galp-(6→, →1)-D-Manp-(3, 6→), and T-D-Manp. The polysaccharide was found to have anti-TMV and anti-CMV activities for the first time in vivo. Notably, DNPE6(4) exhibited excellent protective activity against TMV. Furthermore, several proteins related to calcium signaling pathway and pathogen related proteins were up-regulated, and we also found expression levels of EDS1, ICS1, and PR1 involved in SA pathway up-regulated after DNPE6(4) treatment. In addition, some defense enzymes increased in the same condition. All these findings revealed DNPE6(4) was an elicitor to stimulate calcium signaling pathway to enhance the tobacco defense against TMV. This study therefore revealed that DNPE6(4) was a promising antiviral agent for future study. In the experiment, the researchers used rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1Reference of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol)

rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol(cas: 54-17-1) is oxidized in various tissues under either aerobic or anaerobic conditions through glycolysis; the oxidation reaction produces carbon dioxide, water, and ATP.Reference of rel-(3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol

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Alcohol – Wikipedia,
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Bagutski, Viktor; Del Grosso, Alessandro; Carrillo, Josue Ayuso; Cade, Ian A.; Helm, Matthew D.; Lawson, James R.; Singleton, Paul J.; Solomon, Sophia A.; Marcelli, Tommaso; Ingleson, Michael J. published an article on January 9 ,2013. The article was titled 《Mechanistic studies into amine-mediated electrophilic arene borylation and its application in MIDA boronate synthesis》, and you may find the article in Journal of the American Chemical Society.Application of 401797-00-0 The information in the text is summarized as follows:

Direct electrophilic borylation using Y2BCl (Y2 = Cl2 or o-catecholato) with equimolar AlCl3 and a tertiary amine has been applied to a wide range of arenes and heteroarenes, yielding aryl and heterocyclic boronates in a regioselective way. In situ functionalization of the ArBCl2 products is possible with Me3SiOCOCH2NMeCH2CO2SiMe3 (TMS2MIDA), to afford bench-stable and easily isolable MIDA-boronates in moderate to good yields; pinacol and neopentylglycol esters were also prepared According to a combined exptl. and computational study, the borylation of activated arenes at 20° proceeds through an SEAr mechanism with borenium cations, [Y2B(amine)]+, the key electrophiles. For catecholato-borocations, two amine dependent reaction pathways were identified: with [CatB(NEt3)]+, an addnl. base is necessary to accomplish rapid borylation by deprotonation of the borylated arenium cation (σ complex), which otherwise would rather decompose to the starting materials than liberate the free amine to effect deprotonation. Apart from amines, the addnl. base may also be the arene itself when it is sufficiently basic (e.g., N-Me-indole). When the amine component of the borocation is less nucleophilic (e.g., 2,6-lutidine), no addnl. base is required due to more facile amine dissociation from the boron center in the borylated arenium cation intermediate. Borenium cations do not borylate poorly activated arenes (e.g., toluene) even at high temperatures; instead, the key electrophile in this case involves the product from interaction of AlCl3 with Y2BCl. When an extremely bulky amine is used, borylation again does not proceed via a borenium cation; instead, a number of mechanisms are feasible including via a boron electrophile generated by coordination of AlCl3 to Y2BCl, or by initial (heteroarene)AlCl3 adduct formation followed by deprotonation and transmetalation. In the experimental materials used by the author, we found 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0Application of 401797-00-0)

2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0) belongs to hydroxy-containing compounds. Hydroxy-containing compounds engage in intermolecular hydrogen bonding increasing the electrostatic attraction between molecules and thus to higher boiling and melting points than found for compounds that lack this functional group.Application of 401797-00-0 Organic compounds, which are often poorly soluble in water, become water-soluble when they contain two or more hydroxy groups, as illustrated by sugars and amino acid.

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Alcohol – Wikipedia,
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Gutierrez, Elisa G.; Moorhead, Eric J.; Smith, Eva H.; Lin, Vivian; Ackerman, Laura K. G.; Knezevic, Claire E.; Sun, Victoria; Grant, Sharday; Wenzel, Anna G. published an article in European Journal of Organic Chemistry. The title of the article was 《Electron-Withdrawing, Biphenyl-2,2′-diol-Based Compounds for Asymmetric Catalysis》.Application of 329735-68-4 The author mentioned the following in the article:

Facile synthetic routes to a chiral chloro-substituted biphenyl-2,2′-diyl hydrogen phosphate and a chiral O,O-biphenyl-2,2′-diyl phosphoramidothioate are described. The performance of these compounds as catalysts for the hydrophosphonylation of N-(2-methoxyphenyl) benzaldimine and the Friedel-Crafts alkylation of indole with chalcone was investigated. In the latter reaction, the chloro-substituted phosphoric acid derivative was found to rival the best Bronsted acid catalysts reported to date. The results came from multiple reactions, including the reaction of (R)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol(cas: 329735-68-4Application of 329735-68-4)

(R)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol(cas: 329735-68-4) belongs to phenols. Phenols are more acidic than typical alcohols. The acidity of the hydroxyl group in phenols is commonly intermediate between that of aliphatic alcohols and carboxylic acids (their pKa is usually between 10 and 12).Application of 329735-68-4

Referemce:
Alcohol – Wikipedia,
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Hultzsch, Kai C.; Jernelius, Jesper A.; Hoveyda, Amir H.; Schrock, Richard R. published an article on February 15 ,2002. The article was titled 《The first polymer-supported and recyclable chiral catalyst for enantioselective olefin metathesis》, and you may find the article in Angewandte Chemie, International Edition.Quality Control of (R)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol The information in the text is summarized as follows:

The synthesis of polymer-bound [(1R)-3,3′-Bis(1,1-dimethylethyl)-6,6′-tetramethyl[1,1′-biphenyl]-2,2′-diolato(2-)-κO,κO’][2,6-bis(1-methylethyl)benzenaminato(2-)](2-methyl-2-phenylpropylidene)molybdenum (I) from [2,6-bis(1-methylethyl)benzenaminato(2-)][1,2-di(methoxy-κO)ethane](2-methyl-2-phenylpropylidene)bis(trifluoromethanesulfonato-κO)molybdenum and a chiral polymer-bound [1,1′-biphenyl]-2,2′-diol precursor was reported. The activity of the polymer-bound catalyst I was compared to un-supported [(1R)-3,3′-bis(1,1-dimethylethyl)-5,5′,6,6′-tetramethyl[1,1′-biphenyl]-2,2′-diolato(2-)-κO,κO’][2,6-bis(1-methylethyl)benzenaminato(2-)](2-methyl-2-phenylpropylidene)molybdenum in metathesis reactions of several alkenes. After reading the article, we found that the author used (R)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol(cas: 329735-68-4Quality Control of (R)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol)

(R)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol(cas: 329735-68-4) belongs to phenols. Phenols are more acidic than typical alcohols.Quality Control of (R)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol The acidity of the hydroxyl group in phenols is commonly intermediate between that of aliphatic alcohols and carboxylic acids (their pKa is usually between 10 and 12).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

In 2015,Organic & Biomolecular Chemistry included an article by Bheeter, Charles Beromeo; Chowdhury, Abhishek Dutta; Adam, Rosa; Jackstell, Ralf; Beller, Matthias. Recommanded Product: 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane. The article was titled 《Efficient Rh-catalyzed C-H borylation of arene derivatives under photochemical conditions》. The information in the text is summarized as follows:

Photocatalysis allows innovations in organic synthesis. Among the various catalytic reactions, CH-functionalizations offer valuable possibilities for the refinement of easily available building blocks. In this respect, catalytic borylation is of interest, too. So far, most of the catalytic borylation reactions are performed under thermal conditions at comparably high temperatures Here, authors describe a new synthetic route for efficient borylation reactions of arenes using a photocatalytic pathway. This novel approach allows the synthesis of a broad variety of borylated arenes and heteroarenes under mild conditions. Applying trans-[Rh(PMe3)2(CO)Cl] as an active photocatalyst and HBPin as an boron source, authors achieved high TON. A catalytic cycle that relies on a Rh(i)-Rh(iii) interconversion is proposed. In the experiment, the researchers used many compounds, for example, 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0Recommanded Product: 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane)

2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0) belongs to hydroxy-containing compounds. Hydroxy-containing compounds engage in intermolecular hydrogen bonding increasing the electrostatic attraction between molecules and thus to higher boiling and melting points than found for compounds that lack this functional group.Recommanded Product: 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane Organic compounds, which are often poorly soluble in water, become water-soluble when they contain two or more hydroxy groups, as illustrated by sugars and amino acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ishiyama, Tatsuo; Takagi, Jun; Ishida, Kousaku; Miyaura, Norio; Anastasi, Natia R.; Hartwig, John F. published an article on January 23 ,2002. The article was titled 《Mild Iridium-Catalyzed Borylation of Arenes. High Turnover Numbers, Room Temperature Reactions, and Isolation of a Potential Intermediate》, and you may find the article in Journal of the American Chemical Society.Reference of 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane The information in the text is summarized as follows:

The borylation of arenes leads to the formation of synthetically versatile products from unactivated arene reagents. It is reported that Ir(I) precursors in conjunction with bipyridine ligands catalyze in high yields the borylation of arenes under mild conditions. These reactions encompass arenes bearing both electron-withdrawing and electron-donating substituents. The temperatures required for the transformation are much lower than those previously reported for direct arene borylation. The combination of [Ir(COE)2Cl]2 and (4,4-di-t-butyl)bipyridine even allows for reaction at room temperature The same catalyst system at 100° provides remarkably high turnover numbers for a hydrocarbon functionalization process. Mechanistic studies show that the reactions involve uncommon, Ir(II) tris-boryl complexes. An example of this type of complex ligated by di-t-butylbipyridine, [Ir(COE)(Bpin)3(4,4′-di-t-Bu-BPY)], was isolated and structurally characterized. It reacted rapidly at room temperature to produce aryl boronate esters in high yields. In the part of experimental materials, we found many familiar compounds, such as 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0Reference of 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane)

2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0) belongs to hydroxy-containing compounds. Hydroxy groups participate in the dehydration reactions that link simple biological molecules into long chains. The joining of a fatty acid to glycerol to form a triacylglycerol removes the −OH from the carboxy end of the fatty acid.Reference of 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kushwaha, Pragati; Tripathi, Ashish Kumar; Gupta, Sampa; Kothari, Priyanka; Upadhyay, Akanksha; Ahmad, Naseer; Sharma, Tanuj; Siddiqi, M. I.; Trivedi, Ritu; Sashidhara, Koneni V. published their research in European Journal of Medicinal Chemistry on August 5 ,2018. The article was titled 《Synthesis and study of benzofuran-pyran analogs as BMP-2 targeted osteogenic agents》.Application of 153759-59-2 The article contains the following contents:

Twenty-four novel benzofuran-pyran derivatives were synthesized and evaluated for their anti-osteoporotic activity in primary cultures of rat calvarial osteoblasts in vitro. Among all the compounds screened for the alk. phosphatase activity, three compounds 9-(2-(4-fluorobenzoyl)-7-methylbenzofuran-5-yl)3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione , 9-(7-Ethyl-2-(4-fluorobenzoyl)benzofuran-5-yl)-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione and 9-(7-Ethyl-2-(4-fluorobenzoyl)benzofuran-5-yl)-3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione showed potent activity at picomolar concentrations in osteoblast differentiating stimulation. Addnl., these compounds were found effective in mineralization, assessed by alizarin red-S staining assay. Compounds were again validated through a series of other in vitro experiments Moreover, mol. dynamics simulations demonstrated that both benzofuran and pyran moieties are requisite to fit into the active site of BMP-2 receptor, a key target of the osteogenic agents. The obtained results strongly convey that compound 9-(2-(4-fluorobenzoyl)-7-methylbenzofuran-5-yl)3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione is a potential bone anabolic agent among synthesized series, which can be further explored as a drug lead for treating osteoporosis. After reading the article, we found that the author used 5-(tert-Butyl)-4-hydroxyisophthalaldehyde(cas: 153759-59-2Application of 153759-59-2)

5-(tert-Butyl)-4-hydroxyisophthalaldehyde(cas: 153759-59-2) belongs to phenols.Deprotonation of a phenol forms a corresponding negative phenolate ion or phenoxide ion, and the corresponding salts are called phenolates or phenoxides (aryloxides according to the IUPAC Gold Book).Application of 153759-59-2

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