4309-23-3

Basic information

• Product Name: Benzoic acid, 4-methyl-, copper(2+) salt
• CAS NO: 4309-23-3
• Molecular Formula: C8H8O2.1/2Cu
• Molecular Weight: 333.831
• Mol File: 4309-23-3.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Benzoic acid, 4-methyl-, copper(2+) salt(CAS DataBase Reference)
• NIST Chemistry Reference: Benzoic acid, 4-methyl-, copper(2+) salt(4309-23-3)
• EPA Substance Registry System: Benzoic acid, 4-methyl-, copper(2+) salt(4309-23-3)

Safety Data

• Hazardous Substances Data: 4309-23-3(Hazardous Substances Data)

Upstream product

• 17264-54-9 sodium p-methylbenzoate 
• 7758-99-8 copper(II) sulfate 
• 16518-25-5 potassium p-methyl benzoate 
• 99-94-5 p-Toluic acid 

Downstream Products

• 127837-69-8 [Cu(CH₃C₆H₄COO)((OCH₂)(HOCH₂)C₃H₄N₂S)]2 
• 1579231-52-9 [copper(p-toluate)₂(2-(4-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide)₂] 
• 1459155-29-3 [Cu₂(4-MePhCOO)₄(2-(3-pyridyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazolyl-1-oxyl-3-oxide)₂] 
• 168915-19-3 [Cu(CH₃C₆H₄COO)((OCH₂)(CH₃)C₃H₄N₂S)]2 
• 91730-66-4 [bis(4-methylbenzoate)quinoline N-oxide-copper(II)]2 

Relevant articles and documents

Synthesis, crystal structure, and DNA-binding properties of a new copper (II) complex containing mixed-ligands of 2,2′-bipyridine and p-methylbenzoate

A novel copper complex of [Cu(bpy)(pba)2·H 2O]·0.5H2O (bpy = 2,2′-bipyridine, pba = p-methylbenzoate) was synthesized. The interaction of the complex to native fish sperm DNA was investigated through electrochemistry, electronic absorption spectroscopy and viscosity experiments. In the X-ray crystallography structure, the copper (II) ion is coordinated by two oxygen atoms of two p-methylbenzoate groups, two nitrogen atoms of 2,2′-bipyridine and one water molecule. The observed changes in the physicochemical features of the copper (II) complex on binding to DNA suggested that the complex bind to DNA with intercalation mode via 2,2′-bipyridine ring into DNA base pairs. Electrochemical studies revealed that the complex prefer to bind to DNA in Cu(I) form rather than Cu(II) oxidation state form. Additionally, the nuclease activity of the title complex was assessed by gel electrophoresis assay and the results shown that the copper complex can cleave pBR322 DNA effectively in the presence of ascorbic acid.

Effects of Methyl Substituent on Solvent Extraction of Copper(II) with o-, m-, and p-Methylbenzoic Acids.

The extraction of copper(II) with o-, m-, and p-methylbenzoic acids in 1-octanol was carried out at 25 deg C and aqueous ionic strength of 0.1 mol dm-3 (NaClO4).In contrast to the extraction with benzoic acid, in which only the monomeric copper(II) benzoate is extracted, the dimeric copper(II) species is also responsible for the extraction of copper(II) with o- and m-methylbenzoic acids in 1-octanol together with the monomeric one.On the other hand, p-methylbenzoic acid has a poorer extracting capability than o- and m-methylbenzoic acids and only the monomeric copper(II) species is responsible for the extraction.