CAS 117-56-6

4-Hydroxy-1,5-naphthalenedisulfonic acid

Description:

4-Hydroxy-1,5-naphthalenedisulfonic acid, with the CAS number 117-56-6, is an organic compound characterized by its naphthalene structure, which features two sulfonic acid groups and a hydroxyl group. This compound is typically a solid at room temperature and is soluble in water due to the presence of the sulfonic acid groups, which enhance its polarity. It is often used as a dye intermediate and in the synthesis of various organic compounds. The presence of the hydroxyl group contributes to its reactivity, allowing it to participate in various chemical reactions, such as sulfonation and nitration. Additionally, 4-hydroxy-1,5-naphthalenedisulfonic acid exhibits properties that make it useful in analytical chemistry, particularly in the development of colorimetric assays. Its ability to form complexes with metal ions can also be exploited in various applications, including catalysis and material science. Safety data indicates that, like many sulfonic acids, it should be handled with care to avoid skin and eye irritation.

Formula: C₁₀H₈O₇S₂

InChI: InChI=1S/C10H8O7S2/c11-7-4-5-8(18(12,13)14)6-2-1-3-9(10(6)7)19(15,16)17/h1-5,11H,(H,12,13,14)(H,15,16,17)

InChI key: InChIKey=XIQKALDENTUXBY-UHFFFAOYSA-N

SMILES: S(=O)(=O)(O)C=1C2=C(C(S(=O)(=O)O)=CC=C2)C(O)=CC1

Synonyms:

• Schollkopf's acid
• 4-Hydroxy-1,5-naphthalenedisulfonic acid
• 1,5-Naphthalenedisulfonic acid, 4-hydroxy-
• 1-Naphthol-4,8-disulfonic acid
• Schoellkopf's acid

1,5-Naphthalenedisulfonic acid, 4-hydroxy-

CAS: 117-56-6

Formula: C₁₀H₈O₇S₂

Molecular weight: 304.2963

Ref: IN-DA000DIK