CAS 93-01-6

2-Naphthol-6-sulfonic acid

Description:

2-Naphthol-6-sulfonic acid, with the CAS number 93-01-6, is an aromatic sulfonic acid characterized by its naphthalene structure substituted with a hydroxyl group and a sulfonic acid group. This compound typically appears as a white to light yellow crystalline solid and is soluble in water, reflecting its polar functional groups. It exhibits acidic properties due to the presence of the sulfonic acid group, which can donate protons in solution. 2-Naphthol-6-sulfonic acid is commonly used as a dye intermediate and in the synthesis of various organic compounds, including pharmaceuticals and agrochemicals. Its sulfonic acid group enhances its reactivity and solubility, making it useful in various chemical reactions, such as sulfonation and coupling reactions. Additionally, it can act as a reducing agent in certain conditions. Safety precautions should be taken when handling this compound, as it may cause irritation to the skin and eyes. Overall, 2-Naphthol-6-sulfonic acid is a versatile compound with significant applications in organic synthesis and dye manufacturing.

Formula: C₁₀H₈O₄S

InChI: InChI=1S/C10H8O4S/c11-9-3-1-8-6-10(15(12,13)14)4-2-7(8)5-9/h1-6,11H,(H,12,13,14)

InChI key: InChIKey=VVPHSMHEYVOVLH-UHFFFAOYSA-N

SMILES: S(=O)(=O)(O)C1=CC2=C(C=C1)C=C(O)C=C2

Synonyms:

• 2-Hydroxy-6-naphthalenesulfonic acid
• 2-Hydroxy-naphthalene-6-sulphonic acid
• 2-Naphthalenesulfonic acid, 6-hydroxy-
• 2-Naphthol-6-Sulphonic Acid
• 2-Naphthol-6-sodium sulfonate
• 2-Naphthol-6-sulfonate potassium
• 2-Naphthol-6-sulfonic acid
• 6-Hydroxy-2-Naphthalenesulfonic Acid
• 6-Hydroxy-6-Sulfonic Acid
• 6-Hydroxynaphthalene-2-Sulfonic Acid
• NSC 5871
• Schaeffer's acid
• Schaeffer's β-acid
• Schaeffer's β-naphtholsulfonic acid
• Schaffer's Acid
• Scheffers acid
• β-Naphthol-6-sulfonic acid

2-NAPHTHALENESULFONIC ACID, 6-HYDROXY-

CAS: 93-01-6

Formula: C₁₀H₈O₄S

Purity: 97%

Color and Shape: Solid

Molecular weight: 224.2331

Ref: IN-DA00IHFQ

6-Hydroxynaphthalene-2-sulphonic acid

CAS: 93-01-6

6-Hydroxynaphthalene-2-sulphonic acid is a reaction product of 2-naphthol-6,8-disulfonic acid and amines. It is also called naphthol AS or naphthol ASH. This compound has been used in analytical chemistry for the determination of binding constants, phase liquid chromatography, and chromatographic methods. In addition to its use as an analytical reagent, 6-hydroxynaphthalene-2-sulphonic acid is used in medicine as a sulfonation agent for the preparation of sodium salts, which are then used as antiseptics and disinfectants. The pH of the solution should be neutral or slightly acidic for the best results. The reaction proceeds more rapidly in hydrochloric acid than in other acids because it has a higher pKa value (9.5).

Formula: C₁₀H₈O₄S

Purity: Min. 95%

Color and Shape: Powder

Molecular weight: 224.23 g/mol

Ref: 3D-FH41537

2-Naphthalenesulfonic acid, 6-hydroxy-

CAS: 93-01-6

Purity: ≥97%

Molecular weight: 224.2299957

Ref: 10-F866696