CAS 31139-42-1: [1,1′-Biphenyl]-4,4′-disulfonic acid, sodium salt (1:2)

Description:[1,1′-Biphenyl]-4,4′-disulfonic acid, sodium salt (1:2), with CAS number 31139-42-1, is an organic compound characterized by its biphenyl structure substituted with sulfonic acid groups. This compound typically appears as a white to light yellow powder and is soluble in water, which is a key feature due to the presence of sulfonate groups that enhance its ionic nature. It is commonly used as a dye intermediate, surfactant, and in various industrial applications, including textile and paper manufacturing. The sodium salt form indicates that the sulfonic acid groups are neutralized by sodium ions, which contributes to its solubility and stability in aqueous solutions. Additionally, it exhibits good thermal stability and can be utilized in various chemical reactions due to its functional groups. Safety data should be consulted for handling, as with many chemical substances, to ensure proper precautions are taken during use.

Formula:C₁₂H₁₀O₆S₂·2Na

InChI:InChI=1S/C12H10O6S2.2Na/c13-19(14,15)11-5-1-9(2-6-11)10-3-7-12(8-4-10)20(16,17)18;;/h1-8H,(H,13,14,15)(H,16,17,18);;

InChI key:InChIKey=MBLCKNRYXGXZMN-UHFFFAOYSA-N

SMILES:[Na].O=S(=O)(O)C1=CC=C(C=C1)C=2C=CC(=CC2)S(=O)(=O)O