117-56-6

Basic information

• Product Name: 4-hydroxynaphthalene-1,5-disulphonic acid
• Synonyms: 4-hydroxynaphthalene-1,5-disulphonic acid;1-naphthol-4,8-disulfonic acid;4-Hydroxy-1,5-naphthalenedisulfonic acid;Schoellkopf's acid;8-Hydroxy-1,5-naphthalenedisulfonic acid;α-Naphtholdisulfonic acid S;4-hydroxynaphthalene-1,5-disulfonic acid
• CAS NO: 117-56-6
• Molecular Formula: C₁₀H₈O₇S₂
• Molecular Weight: 304.29632
• EINECS: 204-197-6
• Mol File: 117-56-6.mol
• Article Data: 1

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: 1.816g/cm³
• Refractive Index: 1.725
• PKA: -0.42±0.40(Predicted)
• CAS DataBase Reference: 4-hydroxynaphthalene-1,5-disulphonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 4-hydroxynaphthalene-1,5-disulphonic acid(117-56-6)
• EPA Substance Registry System: 4-hydroxynaphthalene-1,5-disulphonic acid(117-56-6)

Safety Data

• Hazardous Substances Data: 117-56-6(Hazardous Substances Data)

Usage

General Description

4-hydroxynaphthalene-1,5-disulphonic acid is a chemical compound with the molecular formula C10H6O7S2. It is a yellow to orange solid that is soluble in water. 4-hydroxynaphthalene-1,5-disulphonic acid is commonly used in the production of dyes, pigments, and fluorescent brighteners. It is also used as a pH indicator and as a chemical intermediate in the synthesis of other organic compounds. Additionally, 4-hydroxynaphthalene-1,5-disulphonic acid has been studied for its potential application in the treatment of various medical conditions, including cancer and inflammation. Overall, this compound has a wide range of industrial and research applications due to its unique chemical properties.

InChI:InChI=1/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)

Upstream product

• 99185-36-1 4-hydroxy-5-sulfamoyl-naphthalene-1-sulfonic acid 
• 7732-18-5 water 
• 7664-93-9 sulfuric acid 
• 117-55-5 4-aminonaphthalene-1,5-disulfonic acid 
• 84912-13-0 2,2-dioxo-2λ⁶-naphth[1,8-cd][1,2]oxathiol-6-sulfonic acid 
• 117-22-6 8-hydroxy-naphthalene-1-sulfonic acid 

Downstream Products

• 569-42-6 1,8-dihydroxynaphthalene 
• 83-65-8 4,5-dihydroxy-1-naphthalene-sulfonic acid 

Relevant articles and documents

Metal chelate compounds and inks

A metal chelate compound of the Formula (1) and salts thereof: wherein: one of A and B is OH and the other is an azotriazole group; and M is a metal or boron; and n is 0 to 4. Also claimed are compositions and inks containing a compound of Formula (1), a process for ink jet printing using the inks and to an ink jet printer cartridge containing the ink.