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The drugs are classified in BCS on the basis of solubility and permeability. Solubility class boundaries are based on the highest dose strength of an immediate release product. A drug is considered highly soluble when the highest dose strength is soluble in 250 ml or less of aqueous media over the pH range of 1 to 6.8.
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
The tables below provides information on the variation of solubility of different substances (mostly inorganic compounds) in water with temperature, at one atmosphere pressure. Units of solubility are given in grams of substance per 100 millilitres of water (g/(100 mL)), unless shown otherwise. The substances are listed in alphabetical order.
It is possible to increase curcuminoid solubility in aqueous phase with surfactants or co-surfactants. [2] Most common derivatives have different substituents on the phenyl groups . [ 1 ] There is an increasing demand for demethoxycurcumin , bisdemethoxycurcumin, and other curcuminoids because of their biological activity .
The solubility of mitragynine from kratom in neutral-pH and alkaline water is very low (0.0187 mg/ml at pH 9). [20] The solubility of mitragynine in acidic water is higher (3.5 mg/ml at pH 4), however, this alkaloid can become unstable, so certain products, such as low-pH beverages, have a very short shelf life. [ 20 ]
[21] [36] Lacosamide is a functionalized amino acid molecule that has high solubility in water and DMSO, with a solubility of 20.1 mg/mL in phosphate-buffered saline (PBS, pH 7.5, 25 °C). [21] [37] The molecule has six rotatable bonds and one aromatic ring. Lacosamide melts at 143-144 °C and boils at 536.447 °C at a pressure of 760 mmHg. [30 ...
Solubilization is distinct from dissolution because the resulting fluid is a colloidal dispersion involving an association colloid. This suspension is distinct from a true solution, and the amount of the solubilizate in the micellar system can be different (often higher) than the regular solubility of the solubilizate in the solvent.
p-Toluenesulfonic acid (PTSA, pTSA, or pTsOH) or tosylic acid (TsOH) is an organic compound with the formula CH 3 C 6 H 4 SO 3 H.It is a white extremely hygroscopic solid that is soluble in water, alcohols, and other polar organic solvents. [6]