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Methylparaben is commonly used as a fungicide in Drosophila food media at 0.1%. [5] To Drosophila , methylparaben is toxic at higher concentrations, has an estrogenic effect (mimicking estrogen in rats and having anti- androgenic activity), and slows the growth rate in the larval and pupal stages at 0.2%.
Soil adsorption coefficient values were calculated by the U.S. Environmental Protection Agency as 1.94 (methylparaben), 2.20 (ethylparaben), 2.46 (propylparaben), and 2.72 (butylparaben), [28] all of which suggest that parabens have the ability to adhere to the organic portion of sediment and sludge, and thus, persist environmentally. [29]
Sodium methylparaben (sodium methyl para-hydroxybenzoate) is a compound with formula Na(CH 3 (C 6 H 4 COO)O). [1] It is the sodium salt of methylparaben. [1] It is a food additive with the E number E219 which is used as a preservative. [2]
Propylparaben (also spelled propyl paraben) is the n-propyl ester of p-hydroxybenzoic acid.It occurs as a natural substance found in many plants and some insects. Additionally, it can be manufactured synthetically for use in cosmetics, pharmaceuticals, and foods. [1]
Avrum Z. Bluming, MD, an expert on hormone replacement therapy, debunks the menopause misconceptions that keep women from getting treatment.
If it seems like you and everyone around you is getting sick this winter, you're not wrong. Experts say this is the worst flu season in the U.S. in more than a decade and cases are still trending ...
It acts primarily as a stool lubricant, and is thus not associated with abdominal cramps, diarrhea, flatulence, disturbances in electrolytes, or tolerance over long periods of usage, side effects that osmotic and stimulant laxatives often engender (however, some literature suggests that these may still occur).
4-Hydroxybenzoic acid, also known as p-hydroxybenzoic acid (PHBA), is a monohydroxybenzoic acid, a phenolic derivative of benzoic acid.It is a white crystalline solid that is slightly soluble in water and chloroform but more soluble in polar organic solvents such as alcohols and acetone. 4-Hydroxybenzoic acid is primarily known as the basis for the preparation of its esters, known as parabens ...