Chloroauric acid

• CAT Number: M083095
• CAS Number: 16903-35-8
• Molecular Formula: AuCl4H
• Molecular Weight: 339.79
• Purity: ≥95%
• Storage: Store at -20°C
• IUPAC Name: gold(3+);hydron;tetrachloride
• InChI: InChI=1S/Au.4ClH/h;4*1H/q+3;;;;/p-3
• InChIKey: VDLSFRRYNGEBEJ-UHFFFAOYSA-
• SMILES: [H+].[Cl-].[Cl-].[Cl-].[Cl-].[Au+3]

Chloroauric acid (Cat No.: M083095) is a gold-containing inorganic compound in which gold is in the +3 oxidation state, complexed with four chloride ions and typically hydrated. This orange-yellow crystalline solid is highly soluble in water and widely used as a precursor for gold-based catalysts, nanomaterials, and electroplating. It is essential in the synthesis of colloidal gold for biomedical imaging and diagnostic applications. Due to its strong oxidizing properties, chloroauric acid also plays a role in organic transformations and analytical chemistry.