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Sodium propyl p-hydroxybenzoate, the sodium salt of propylparaben, a compound with formula Na(C 3 H 7 (C 6 H 4 COO)O), is used similarly as a food additive and as an ...
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 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. [21] 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 ...
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Butylparaben, or butyl p-hydroxybenzoate, is an organic compound with the formula C 4 H 9 O 2 CC 6 H 4 OH. [1] It is a white solid that is soluble in organic solvents. It has proven to be a highly successful antimicrobial preservative in cosmetics. [2] It is also used in medication suspensions, and as a flavoring additive in food.
Propan-2-yl 4-hydroxybenzoate. Other names Isopropyl 4-hydroxybenzoate; Isopropyl p-hydroxybenzoate. Identifiers CAS Number. 4191-73-5 ...
4-Hydroxybenzoic acid 4-O-glucoside is a glucoside of p-hydroxybenzoic acid. It can be found in mycorrhizal (Picea abies-Lactarius deterrimus and Picea abies-Laccaria amethystina) and non-mycorrhizal roots of Norway spruces (Picea abies). [1] The enzyme 4-hydroxybenzoate 4-O-beta-D-glucosyltransferase can be found in the pollen of Pinus ...
ethyl para-hydroxybenzoate: preservative 215 E U sodium ethyl para-hydroxybenzoate: preservative 216 A U propylparaben (propyl para-hydroxybenzoate) preservative 217 U sodium propyl para-hydroxybenzoate: preservative 218 A E U methylparaben (methyl para-hydroxybenzoate) preservative 219 E U sodium methyl para-hydroxybenzoate: preservative 220 A E U
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