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Ethylparaben (ethyl para-hydroxybenzoate) is the ethyl ester of p-hydroxybenzoic acid. Its formula is HO-C 6 H 4-CO-O-CH 2 CH 3. It is a member of the class of compounds known as parabens. It is used as an antifungal preservative. As a food additive, it has E number E214.
Ethyl 2-hydroxybenzoate. ... 274.4 K) [2] Boiling point: ... Ethyl salicylate is the ester formed by the condensation of salicylic acid and ethanol. It is a clear ...
Methyl benzoate can be isolated from the freshwater fern Salvinia molesta. [3] It is one of many compounds that is attractive to males of various species of orchid bees, which apparently gather the chemical to synthesize pheromones; it is commonly used as bait to attract and collect these bees for study.
The Arrhenius equation was used in a study to calculate activation energies for the chlorination of four parent parabens (methyl-, ethyl-, propyl-, and butylparaben) and was found to range from 36–47 kJ/mol. [22] In another study, tap water at 20 °C (68 °F) containing 50–200 μM free chlorine was spiked with 0.5 μM propylparaben and the ...
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 ...
The reaction of this with hydrazine gives 5-methyl-6-[3-nitro-4-(4-methoxy-benzoylamino)-phenyl]-3-oxo-4,5-dihydro-2H-pyridazine [74149-73-8]. Catalytic hydrogenation reduces the nitro group giving [74149-74-9] ( 4 ). cyclization of the resulting ortho amino amide by means of a strong acid leads to the formation of the corresponding benzimidazole.
PD-0298029 is a drug which acts as a selective antagonist for the muscarinic acetylcholine receptor M 4. It was developed for the treatment of Parkinson's disease, but poor bioavailability and rapid metabolism in animal studies have meant its use is largely limited to in vitro research into the M 4 and other muscarinic receptors. [1] [2] [3]
2-Ethylhexyl salicylate also known as octisalate or octyl salicylate, is an organic compound used as an ingredient in sunscreens and cosmetics to absorb UVB (ultraviolet) rays from the sun. [1] It is an ester formed by the condensation of salicylic acid with 2-ethylhexanol. It is a colorless oily liquid with a slight floral odor.
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