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4-Mercaptobenzoic acid (p-mercaptobenzoic acid, p-MBA) is an organosulfur compound with the formula para-C 6 H 4 (−SH)(−COOH). It is used as a ligand in thiolate-protected gold cluster compounds, such as Au 102 ( p -MBA) 44 .
Benzoic acid is cheap and readily available, so the laboratory synthesis of benzoic acid is mainly practiced for its pedagogical value. It is a common undergraduate preparation. Benzoic acid can be purified by recrystallization from water because of its high solubility in hot water and poor solubility in cold water. The avoidance of organic ...
Melting point-27.8 °C (-18.0 °F; -409.63 K) ... the methyl group may be oxidized using potassium permanganate to form the corresponding bromobenzoic acid. [5]
Melting point: 16–19 °C ... Boiling point: 230 °C 233–236 °C 255–258 °C References This page was last edited on 25 January 2024, at 01:40 (UTC ...
Acedoben (4-acetamidobenzoic acid or N-acetyl-PABA) is a chemical compound with the molecular formula of C 9 H 9 NO 3. It is the acetyl derivative of para -aminobenzoic acid (PABA). Acedoben, as a salt with dimepranol , is a component of some pharmaceutical preparations such as inosine pranobex .
4-Bromobenzaldehyde may be prepared in the laboratory in two steps by oxidation 4-bromotoluene. [4] In the first step, two bromine atoms are added to the methyl group of 4-bromotoluene by free radical bromination to form 4-bromobenzal bromide.
4-Aminobenzoic acid (also known as para-aminobenzoic acid or PABA because the two functional groups are attached to the benzene ring across from one another in the para position) is an organic compound with the formula H 2 NC 6 H 4 CO 2 H. PABA is a white crystalline solid, [3] although commercial samples can appear gray. It is slightly soluble ...
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 ...