Tag: 0-100

PCM Slurry using Ammonium Alum and Propylene Glycol for Heat Transportation was written by Otsubo, Takumu;Hidema, Ruri;Suzuki, Hiroshi. And the article was included in International Journal of Refrigeration in 2022.HPLC of Formula: 57-55-6 This article mentions the following:

A phase-change material (PCM) slurry for storing and transporting waste heat was studied. The PCM used in this study was ammonium aluminum sulfate dodecahydrate (ammonium alum). Ammonium alum has a m.p. of 93.5°C and a latent heat of 259.9 kJ kg^-1; however, ammonium alum slurry (prepared by mixing ammonium alum and water) has a lower latent heat of 12.1 kJ kg^-1 (at a mass fraction of AlNH4(SO₄)₂ of 15 wt%) owing to its high solubility To decrease the solubility of ammonium alum, novel ammonium alum slurry was proposed using propylene glycol (PG) as a poor solvent. In this study, the solubility of ammonium alum in PG and water mixtures was measured. The phase change characteristics were measured using differential scanning calorimetry (DSC). The effects of the mass fraction of ammonium alum and the mass fraction of PG on the m.p. and latent heat of the PCM were investigated. It was observed that when the mass fraction of PG increased, the latent heat and m.p. increased. In this case, for the same m.p., the volume of particles of ammonium alum can be reduced by adding PG. The viscosity of the saturated ammonium alum solution was measured using a rheometer. The viscosity of the slurry was estimated using Einstein′s viscosity equation. The heat-transfer efficiency of the prepared ammonium slurry was analyzed based on these results. It was concluded that the slurry proposed in this study is effective for heat transportation. In the experiment, the researchers used many compounds, for example, 1,2-Propanediol (cas: 57-55-6HPLC of Formula: 57-55-6).

1,2-Propanediol (cas: 57-55-6) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.HPLC of Formula: 57-55-6

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Mechanical characterization and optical microscopy of homemade slime and the effect of some common household products was written by Ashraf, Juveiriah M.;Nayfeh, Leia;Nayfeh, Ammar. And the article was included in Scientific Reports in 2022.Product Details of 57-55-6 This article mentions the following:

In this work, we demonstrate the synthesis of homemade slime and investigate how adding different household chems. such as shaving cream and clay affects the chem. properties and hence the mech. behavior. The purpose of this study is to instill scientific curiosity in young learners by establishing a relationship between a material’s chem. structure and its mech. properties. Eight types of slime were studied: basic slime (borax with glue), slime with the addition of: (a) shaving cream, (b) clay, (c) shaving cream and clay together, (d) baking soda, (e) cornstarch, (f) hand soap, and (g) toothpaste. It was found that basic slime has a Young’s Modulus of 93 MPa while adding shaving cream and clay increased the modulus of elasticity to 194 and 224 MPa resp. Adding thickening agents such as baking soda and corn starch increased the modulus to 118 and 110 MPa resp. while the incorporation of foaming agents, for example, hand soap and toothpaste rendered the sample very gelatinous. The Young’s modulus of samples C and D was the highest recorded and this is attributed to the presence of clay, which is relatively the stiffest material from the choice of additives used in this study. The results were supported by FT-IR spectroscopy which showcased the formation of different chem. structures of the slime with the added chem. agents. In the experiment, the researchers used many compounds, for example, 1,2-Propanediol (cas: 57-55-6Product Details of 57-55-6).

1,2-Propanediol (cas: 57-55-6) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.Product Details of 57-55-6

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The First Observation on Dual Self-Closed and Extended Assembly Modes in Supertetrahedral T3 Cluster Based Open-Framework Chalcogenide was written by Wang, Wei;Yang, Huajun;Xue, Chaozhuang;Luo, Min;Lin, Jian;Hu, Dandan;Wang, Xiang;Lin, Zhien;Wu, Tao. And the article was included in Crystal Growth & Design in 2017.Product Details of 5856-63-3 This article mentions the following:

Reported here is a new open-framework metal chalcogenide semiconductor with omy topol. built from typical supertetrahedral T3-InSnS cluster via dual self-closed and extended assembly modes. This represents the second case containing dual assembly modes in cluster based open-framework superlattices. Interestingly, the self-closed assembly of T3 clusters results in an unprecedented supersupertetrahedral T3,2 cluster, being a new member filling in the blank in the family of supersupertetrahedral clusters. In addition, the title compound also shows good photocatalytic activity for the degradation of methylene blue. In the experiment, the researchers used many compounds, for example, (R)-2-Aminobutan-1-ol (cas: 5856-63-3Product Details of 5856-63-3).

(R)-2-Aminobutan-1-ol (cas: 5856-63-3) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.Product Details of 5856-63-3

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Thermal Prandtl-Eyring hybridized MoS₂-SiO₂/C₃H₈O₂ and SiO₂-C₃H₈O₂ nanofluids for effective solar energy absorber and entropy optimization: A solar water pump implementation was written by Salawu, S. O.;Obalalu, A. M.;Fatunmbi, E. O.;Oderinu, R. A.. And the article was included in Journal of Molecular Liquids in 2022.Computed Properties of C3H8O2 This article mentions the following:

The functional properties of a hybridized nanofluid offer high applications in nanotechnol. advancement and efficient industrial output. Hence, this anal. focuses on the dynamical properties of a magnetized viscoplastic nanofluid of solar heat absorber for water pump. The hybridization of Prandtl-Eyring fluid, molybdenum disulfide and silicon dioxide nanoparticles in propylene glycol liquid is examined with Ohmic heating and viscous dissipation. A second order parabolic trough slip collector of radiative solar energy absorber is used to study the flowing fluid characteristics. A dimensionless math. model is obtained with convective cooling and slip boundary conditions via similarity quantities, and the model is solved by Chebyshev collocation technique. The optimization of entropy is determined using the thermodn. second law. In tabular form, the results comparison is done, and the wall friction and heat gradient are presented. The hybridized nanofluid significantly lowers the entropy generation in the presence of Prandtl-Eyring material as compared to the single nanofluid. In the experiment, the researchers used many compounds, for example, 1,2-Propanediol (cas: 57-55-6Computed Properties of C3H8O2).

1,2-Propanediol (cas: 57-55-6) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. A multistep synthesis may use Grignard-like reactions to form an alcohol with the desired carbon structure, followed by reactions to convert the hydroxyl group of the alcohol to the desired functionality.Computed Properties of C3H8O2

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

High clarity polyurethane laminating adhesives based on poly(propylene glycol). Effect of hard segment on microphase morphology, haze and adhesion was written by McCreath, S.;Boinard, P.;Boinard, E.;Gritter, P.;Liggat, J. J.. And the article was included in International Journal of Adhesion and Adhesives in 2022.Recommanded Product: 57-55-6 This article mentions the following:

A series of polyurethanes were prepared, with poly(propylene glycol) used as soft-phase due to the high clarity of this polyol and absence of carbonyl functionality, which allows for hard-phase architecture to be resolved with greater resolution In total, eight adhesives were synthesized, each contained a different chain-extender formulation to gauge what influence hard-phase architecture had on laminate haze and peel strength. This was investigated using either 4,4-methylene di-Ph diisocyanate or isophorone diisocyanate as hard-phase with trimethylolpropane as the only chain-extender or by including one of the following sterically hindered diols: 2,2-diethyl-1,3-propane diol, 1,3-butane diol or 1,2-propane diol. DSC anal. showed that microphase morphol. was strongly influenced by the diisocyanate present, as shown by the degree of phase mixing being greater in methylene di-Ph diisocyanate based formulations when compared with isophorone diisocyanate based. This resulted in higher haze values being encountered for both polycarbonate and ethanolamine surface-treated polycarbonate laminates which contained methylene di-Ph diisocyanate based formulations when compared to isophorone diisocyanate based formulations, where all values were <1.5%. In the experiment, the researchers used many compounds, for example, 1,2-Propanediol (cas: 57-55-6Recommanded Product: 57-55-6).

1,2-Propanediol (cas: 57-55-6) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Recommanded Product: 57-55-6

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Evaluation of the antiprion activity of 6-aminophenanthridines and related heterocycles was written by Nguyen, Phuhai;Oumata, Nassima;Soubigou, Flavie;Evrard, Justine;Desban, Nathalie;Lemoine, Pascale;Bouaziz, Serge;Blondel, Marc;Voisset, Cecile. And the article was included in European Journal of Medicinal Chemistry in 2014.Safety of (R)-2-Aminobutan-1-ol This article mentions the following:

Several 6-(amino)phenanthridine derivatives and related heterocyclic compounds such as benzonaphtyridine derivatives were prepared A reduction of one of the three aromatic rings was also performed. The compounds were first tested for their antiprion activity in a previously described yeast-based colorimetric prion assay. The most potent derivatives were then assayed ex-vivo against the mammalian prion PrP^Sc in a cell-based assay. Several of the new compounds were found more potent than the parent lead 6-aminophenanthridine. The most promising compounds against yeast and mammalian prions were 8-azido-6-aminophenanthridine and 7,10-dihydrophenanthridin-6-amine. In the mammalian cell-based assay, the IC₅₀ of these two compounds were around 5 μM and 1.8 μM, resp. The synthesis of the target compounds was achieved by a coupling reaction of boronic acid esters, such as 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzenamine, 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile with suitable aryl bromides or aryl chlorides. The tilte compounds thus formed included 6-phenanthridinamine derivatives and analogs, such as benzo[c][2,6]naphthyridin-5-amine, benzo[h][1,6]naphthyridin-5-amine, benzo[c][1,8]naphthyridin-6-amine, benzo[c][1,6]naphthyridine, benzo[c]-1,5-naphthyridine. In the experiment, the researchers used many compounds, for example, (R)-2-Aminobutan-1-ol (cas: 5856-63-3Safety of (R)-2-Aminobutan-1-ol).

(R)-2-Aminobutan-1-ol (cas: 5856-63-3) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Safety of (R)-2-Aminobutan-1-ol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Hypromellose – Collagen hydrogels/sesame oil organogel based bigels as controlled drug delivery systems was written by Corredor-Chaparro, Maira Yohana;Vargas-Riveros, Daniela;Mora-Huertas, Claudia Elizabeth. And the article was included in Journal of Drug Delivery Science and Technology in 2022.Synthetic Route of C3H8O2 This article mentions the following:

The search for novel strategies to formulate bioactive mols. for topical administration is a matter of permanent interest in the pharmaceutical field. As a contribution, the present work deepens the bigels, i.e., matrix-in-matrix systems resulting from mixing a hydrogel and an organogel. Hypromellose, collagen, gelatin, alginate, sesame oil, medium-chain triglycerides, and iso-Pr myristate were included among the starting materials investigated. Nonetheless, the bigels’ homogeneity and stability are determined by the nature and proportion of the starting materials and operating conditions used during their preparation On the other hand, bigels exhibit a different structure than the starting gels and other related systems such as emulgels, which govern their rheol. and texture behaviors, and modulate the drug delivery, as evidenced through the tests using diclofenac in its dissociated and non-dissociated forms. On this basis, this semisolid system attracts attention to developing versatile pharmaceutical products wherein controlled release of active mols. is intended. In the experiment, the researchers used many compounds, for example, 1,2-Propanediol (cas: 57-55-6Synthetic Route of C3H8O2).

1,2-Propanediol (cas: 57-55-6) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Synthetic Route of C3H8O2

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Study of ¹H NMR based urinary metabolites profiling dataset of canine mammary tumors was written by Lee, Songyeon;Seung, Byung-Joon;Yang, In Seok;Lee, Jueun;Ha, Taewoong;Park, Hee-Myung;Cheong, Jae-Ho;Kim, Sangwoo;Sur, Jung-Hyang;Hwang, Geum-Sook;Nam, Hojung. And the article was included in Scientific Data in 2022.Formula: C3H8O2 This article mentions the following:

The identification of efficient and sensitive biomarkers for non-invasive tests is one of the major challenges in cancer diagnosis. To address this challenge, metabolomics is widely applied for identifying biomarkers that detect abnormal changes in cancer patients. Canine mammary tumors exhibit physiol. characteristics identical to those in human breast cancer and serve as a useful animal model to conduct breast cancer research. Here, we aimed to provide a reliable large-scale metabolite dataset collected from dogs with mammary tumors, using proton NMR spectroscopy. We identified 55 metabolites in urine samples from 20 benign, 87 malignant, and 49 healthy control subjects. This dataset provides details of mammary tumor-specific metabolites in dogs and insights into cancer-specific metabolic alterations that share similar mol. characteristics. In the experiment, the researchers used many compounds, for example, 1,2-Propanediol (cas: 57-55-6Formula: C3H8O2).

1,2-Propanediol (cas: 57-55-6) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Formula: C3H8O2

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Targeting prohibitin with small molecules to promote melanogenesis and apoptosis in melanoma cells was written by Djehal, Amel;Krayem, Mohammad;Najem, Ahmad;Hammoud, Hassan;Cresteil, Thierry;Nebigil, Canan G.;Wang, Dong;Yu, Peng;Bentouhami, Embarek;Ghanem, Ghanem E.;Desaubry, Laurent. And the article was included in European Journal of Medicinal Chemistry in 2018.Related Products of 5856-63-3 This article mentions the following:

Prohibitins 1 and 2 (PHB1/2) are scaffold proteins that are involved in both melanogenesis and oncogenic pathways. We hypothesized that a PHB1 ligand, melanogenin, may display anti-cancer effects in addition to its known melanogenic activity in melanocytes. Here, we disclose a convenient synthesis of melanogenin, and its analogs. We found that, among 57 new melanogenin analogs, two (Mel9 and Mel41) significantly promoted both melanogenesis in melanocytes by activating one of the PHB2-interacting proteins, microtubule-associated protein light chain 3 (LC3), and upregulating the expression of microphthalmia associated transcription factor (MITF). These analogs also activate ERK. Besides, in addition to their promelanogenic activities, we uncovered that melanogenin and its active analogs induce apoptosis in several cancer cell lines, including melanoma cells, and that this effect is caused by an inhibition of AKT survival pathway. Our findings present a new putative function for PHBs as regulators of LC3/ERK/MITF melanogenic signaling, and suggest that Mel9 and Mel41 may provide the basis for the development of new drugs candidates to treat melanoma and other types of cancers. In the experiment, the researchers used many compounds, for example, (R)-2-Aminobutan-1-ol (cas: 5856-63-3Related Products of 5856-63-3).

(R)-2-Aminobutan-1-ol (cas: 5856-63-3) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.Related Products of 5856-63-3

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Influence of high pressure on the solubility of ribavirin in six pure solvents from 283.15 to 323.15 K was written by Feng, Yaoguang;Hao, Hongxun;Tian, Beiqian;Chen, Kui;Wang, Na;Wang, Ting;Huang, Xin. And the article was included in Journal of Chemical Thermodynamics in 2022.Quality Control of 1,2-Propanediol This article mentions the following:

The solubility of ribavirin in six pure solvents was measured at 9.0 MPa and 0.1 MPa to evaluate the influence of high pressure on solubility at the temperature range from 283.15 K to 323.15 K. The results indicated that all the solubilities of ribavirin decreased slightly at 9.0 MPa compared with those at 0.1 MPa. Solvation free energy of ribavirin in six solvents under two pressures was calculated to explain the decrease of solubility under high pressure. Besides, the solubility of ribavirin increased with the rising temperature under both 0.1 MPa and 9.0 MPa. Furthermore, the exptl. solubility data under two pressures were correlated by the modified Apelblat equation and NRTL model. The average relative deviation value of the modified Apelblat equation is less than 3%, which can give better correlation results. Finally, the thermodn. properties of mixing and dissolution of ribavirin in six pure solvents under two pressures were also calculated based on the solubility exptl. data and the NRTL equation. In the experiment, the researchers used many compounds, for example, 1,2-Propanediol (cas: 57-55-6Quality Control of 1,2-Propanediol).

1,2-Propanediol (cas: 57-55-6) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.Quality Control of 1,2-Propanediol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts