Description

Iron(III) p-Toluenesulfonate (CAS No. 77214-82-5) is a highly versatile iron-based salt of p-toluenesulfonic acid, with the molecular formula C₂₁H₂₁FeO₉S₃. This compound is widely recognized for its role as a Lewis acid catalyst in organic synthesis, particularly in polymerization and esterification reactions. Its high solubility in polar organic solvents and stability under various reaction conditions make it a preferred choice for researchers and industrial chemists. Available in high-purity grades, this product is rigorously tested to ensure consistency and performance in demanding applications. Suitable for use in electrochemical processes, material science, and specialty chemical synthesis.

Properties

• CAS Number: 77214-82-5
• Complexity: 193
• IUPAC Name: ferric;4-methylbenzenesulfonate
• InChI: InChI=1S/3C7H8O3S.Fe/c3*1-6-2-4-7(5-3-6)11(8,9)10;/h3*2-5H,1H3,(H,8,9,10);/q;;;+3/p-3
• InChI Key: FYMCOOOLDFPFPN-UHFFFAOYSA-K
• Exact Mass: 568.969706
• Molecular Formula: C21H21FeO9S3
• Molecular Weight: 569.4
• SMILES: CC1=CC=C(C=C1)S(=O)(=O)[O-].CC1=CC=C(C=C1)S(=O)(=O)[O-].CC1=CC=C(C=C1)S(=O)(=O)[O-].[Fe+3]
• Topological: 197
• Monoisotopic Mass: 568.969706
• Synonyms: Iron(III) p-toluenesulfonate, 77214-82-5, Ferric p-toluenesulfonate, Benzenesulfonic acid, 4-methyl-, iron(3+) salt, p-Tolyenesulfonic acid ferric salt, Iron (III) tris(4-methylbenzenesulfonate), DTXSID6072847, EC 420-960-8, Benzenesulfonic acid, 4-methyl-, iron(3+) salt (3:1), DTXCID9047960, 420-960-8, 807-886-5, Iron(III) 4-methylbenzenesulfonate, iron(3+);4-methylbenzenesulfonate, MFCD01766290, C21H21FeO9S3, iron (iii) p-toluenesulfonate, SCHEMBL144480, FYMCOOOLDFPFPN-UHFFFAOYSA-K, AKOS015840443, AS-15972, SY047664, F16469, A839006, ferric 4-methylbenzenesulfonate;Iron(III) p-toluenesulfonate

Application

Iron(III) p-toluenesulfonate is extensively used as a catalyst in the polymerization of conductive polymers, such as polyaniline and polypyrrole, due to its strong oxidizing properties. It also serves as an efficient Lewis acid in esterification and Friedel-Crafts reactions, enabling high-yield synthetic pathways. In material science, it is employed for surface treatment and as a dopant for enhancing electrical conductivity in polymer films.

Safety and Hazards

GHS Hazard Statements

• H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]

Precautionary Statements

• P264+P265, P280, P305+P354+P338, and P317

Hazard Classes and Categories

• Eye Dam. 1 (100%)

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