Results 41 to 50 of about 31,895 (247)

Stability constant of some Metal Ion Complexes of (6-(2Amino-2-(4-hydroxy phenyl)-acetamido)-3,3--dimethyl-7oxo-4-thia-1-aza-bicyclo[3,2,0]heptanes-2carboxylicacid(Amoxicillin)

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2017
  Measurement of stability constant of some complexes formed by (6-(2-amino-2-(4hydroxy phenyl)-acetamido)-3,3-dimethyl-7-oxo-4-thia-1-aza-bicyclo[3,2,0] heptanes-2carboxylic acid (Amoxicillin) with (Cr+3, Co+2, Ni+2, Cu+2,Ag+1, and Cd+2) ions, have ...
Basima M. Sarhan   +2 more
doaj  

Population balance modeling and digital design of degree of agglomeration in industrial crystallization

open access: yesAIChE Journal, EarlyView.
Abstract This study presents a coupled population balance model (PBM) for describing the degree‐of‐agglomeration (DoA) in crystallization by independently tracking total particle and agglomerate number densities. Applied to an industrial active pharmaceutical ingredient, the model outperformed bridge‐counting methods and accurately captured DoA trends ...
Yung‐Shun Kang   +6 more
wiley   +1 more source

Solvent Replacement Strategies for Processing Pharmaceuticals and Bio-Related Compounds—A Review

open access: yesLiquids
An overview of solvent replacement strategies shows that there is great progress in green chemistry for replacing hazardous di-polar aprotic solvents, such as N,N-dimethylformamide (DMF), 1-methyl-2-pyrrolidinone (NMP), and 1,4-dioxane (DI), used in ...
Jia Lin Lee   +4 more
doaj   +1 more source

Combustion of Submillimeter Heptane/Methanol and Heptane/Ethanol Droplets in Reduced Gravity [PDF]

open access: yesJournal of Combustion, 2013
Reduced-gravity experiments were performed on combustion of droplets composed of n-heptane mixed with methanol or ethanol. The initial alcohol mass fraction in a droplet was 0% (pure heptane) or 5%. The experiments were performed at 0.1 MPa and 25°C with air or with ambients of oxygen and helium with oxygen mole fractions of 0.3 or 0.4. Initial droplet
I. Aharon, V. K. Tam, B. D. Shaw
openaire   +2 more sources

Photochemical Synthesis of 2-Azabicyclo[3.2.0]heptanes: Advanced Building Blocks for Drug Discovery. Synthesis of 2,3-Ethanoproline.

open access: yesJournal of Organic Chemistry, 2018
Intramolecular photochemical [2 + 2]-cyclization of acetophenone enamides gave 2-azabicyclo[3.2.0]heptanes, advanced building blocks for drug discovery. Synthesis of a conformationally restricted analogue of proline, 2,3-ethanoproline, was performed.
Tetiana V. Druzhenko   +8 more
semanticscholar   +1 more source

Skeletal isomerization of heptanes over superacid catalysts of different nature

open access: yesТонкие химические технологии, 2011
The sequence of the formation of multi-branched heptane isomers was studied in liquid and gaseous phases over different liquid and solid superacid catalysts.
A. S. Berenblum   +3 more
doaj  

ON HEPTANE FROM CONIFEROUS TREES. [PDF]

open access: yesJournal of the American Chemical Society, 1901
n ...
openaire   +1 more source

The Chemistry of the Heptane Solution [PDF]

open access: yesThe Journal of the American Pharmaceutical Association (1912), 1921
n ...
Kremers, Edward, Sherk, D. C. L.
openaire   +2 more sources

Spectroscopic and In Silico Determination of the Structural and Antioxidant Properties of Essential Oils From Lavandula Species Cultivated in the Silivri Region of Istanbul

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
ABSTRACT Plants are important sources of bioactive compounds that contribute to nutrition, health maintenance, and disease prevention. In this study, the chemical composition and antioxidant potential of essential oils obtained from Lavandula angustifolia “Sevtopolis” and Lavandula × intermedia cultivated in the Silivri region of Istanbul were ...
Bilge Bicak   +4 more
wiley   +1 more source

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