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4-Bromobenzaldehyde, or p-bromobenzaldehyde, is an organobromine compound with the formula BrC 6 H 4 CHO. It is one of three isomers of bromobenzaldehyde . [ 3 ] It displays reactivity characteristic of benzaldehyde and an aryl bromide .
Potassium benzoate (E212), the potassium salt of benzoic acid, is a food preservative that inhibits the growth of mold, yeast and some bacteria. It works best in low- pH products, below 4.5, where it exists as benzoic acid.
Methyl benzoate is an organic compound. It is an ester with the chemical formula C 6 H 5 COOCH 3 , sometimes abbreviated as PhCO 2 Me , where Ph and Me are phenyl and methyl , respectively. Its structure is C 6 H 5 −C(=O)−O−CH 3 .
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]
Benzyl bromide is used in organic synthesis for the introduction of the benzyl groups when the less expensive benzyl chloride is insufficiently reactive. [6] [7] Benzylations are often achieved in the presence of catalytic amounts of sodium iodide, which generates the more reactive benzyl iodide in situ. [3]
CAS Number. 2315-68-6 ... Propyl benzoate can be synthesized by the transesterification of methyl benzoate with propanol. [3]
Potassium fluoroborate is obtained by treating potassium carbonate with boric acid and hydrofluoric acid. B(OH) 3 + 4 HF → HBF 4 + 3 H 2 O 2 HBF 4 + K 2 CO 3 → 2 KBF 4 + H 2 CO 3. Fluoroborates of alkali metals and ammonium ions crystallize as water-soluble hydrates with the exception of potassium, rubidium, and cesium.
4-Methylbenzaldehyde is the aromatic aldehyde with the formula CH 3 C 6 H 4 CHO. It is a colorless liquid. It is a colorless liquid. Commercially available, it may be prepared from the Friedel-Crafts formylation of toluene with carbon monoxide and hydrogen chloride under Gattermann-Koch conditions .