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  2. Bioconcentration - Wikipedia

    en.wikipedia.org/wiki/Bioconcentration

    [15] k 1 is the rate constant for chemical uptake from water at the respiratory surface (L*kg −1 *d −1). [15] C WD is the chemical concentration dissolved in water (g*L −1 ). [ 15 ] k 2 ,k E ,k G ,k B are rate constants that represent excretion from the organism from the respiratory surface, fecal excretion, metabolic transformation, and ...

  3. Tris(pentafluorophenyl)borane - Wikipedia

    en.wikipedia.org/wiki/Tris(pentafluorophenyl)borane

    Tris (pentafluorophenyl)borane, sometimes referred to as "BCF", is the chemical compound (C6F5)3B. It is a white, volatile solid. The molecule consists of three pentafluorophenyl groups attached in a "paddle-wheel" manner to a central boron atom; the BC3 core is planar. It has been described as the “ideal Lewis acid ” because of its high ...

  4. 3,3',4,4'-Benzophenone tetracarboxylic dianhydride - Wikipedia

    en.wikipedia.org/wiki/3,3',4,4'-Benzophenone...

    3,3’,4,4’-Benzophenone tetracarboxylic dianhydride (BTDA) is chemically, an aromatic organic acid dianhydride. It may be used to cure epoxy-based powder coatings. It has the CAS Registry Number of 2421-28-5 and a European Community number 219-348-1. It is REACH and TSCA registered. The formula is C 17 H 6 O 7 with a molecular weight of 322. ...

  5. Biopharmaceutics Classification System - Wikipedia

    en.wikipedia.org/wiki/Biopharmaceutics...

    The Biopharmaceutics Classification System (BCS) is a system to differentiate drugs on the basis of their solubility and permeability. [1] This system restricts the prediction using the parameters solubility and intestinal permeability. The solubility classification is based on a United States Pharmacopoeia (USP) aperture.

  6. 3,4,5-Trimethoxybenzaldehyde - Wikipedia

    en.wikipedia.org/wiki/3,4,5-Trimethoxybenzaldehyde

    3,4,5-Trimethoxybenzaldehyde. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). 3,4,5-Trimethoxybenzaldehyde is an organic compound and a biochemical. Within this class of compounds, the chemical is categorized as a trisubstituted aromatic aldehyde.

  7. 1,2,3,4-Tetraphenylnaphthalene - Wikipedia

    en.wikipedia.org/wiki/1,2,3,4-Tetraphenylnaphthalene

    Infobox references. 1,2,3,4-Tetraphenylnaphthalene is a polycyclic aromatic hydrocarbon commonly prepared in the undergraduate teaching laboratory as an introduction to the Diels-Alder reaction, in this case between benzyne, which acts as the dienophile, (generated in situ) and tetraphenylcyclopentadienone, which acts as the diene. [ 3]

  8. Phosphatidylinositol (3,4,5)-trisphosphate - Wikipedia

    en.wikipedia.org/wiki/Phosphatidylinositol_(3,4...

    Infobox references. Phosphatidylinositol (3,4,5)-trisphosphate ( PtdIns (3,4,5)P3 ), abbreviated PIP3, is the product of the class I phosphoinositide 3-kinases ' (PI 3-kinases) phosphorylation of phosphatidylinositol (4,5)-bisphosphate (PIP 2 ). It is a phospholipid that resides on the plasma membrane.

  9. Crystallographic restriction theorem - Wikipedia

    en.wikipedia.org/wiki/Crystallographic...

    The crystallographic restriction theorem in its basic form was based on the observation that the rotational symmetries of a crystal are usually limited to 2-fold, 3-fold, 4-fold, and 6-fold. However, quasicrystals can occur with other diffraction pattern symmetries, such as 5-fold; these were not discovered until 1982 by Dan Shechtman.

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