3682-32-4

Basic information

• Product Name: 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID
• Synonyms: 4-HYDROXY-3-NITROSO-1-NAPHTHALENESULFONIC ACID;2-NITROSO-1-NAPHTHOL-4-SULPHONIC ACID TETRAHYDRATE;2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID;LABOTEST-BB LT00454247;4-hydroxy-3-nitroso-1-naphthalenesulfonicaci;4-hydroxy-3-nitrosonaphthalene-1-sulphonic acid;4-hydroxy-3-nitrosonaphthalene-1-sulfonic acid;2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID FOR SPECTROPHOTOM. DET. 99+%
• CAS NO: 3682-32-4
• Molecular Formula: C₁₀H₇NO₅S
• Molecular Weight: 253.23
• EINECS: 222-964-3
• Mol File: 3682-32-4.mol
• Article Data: 0

Chemical Properties

• Melting Point: 140-145 °C (dec.)
• Appearance: /
• Density: 1.65±0.1 g/cm3(Predicted)
• PKA: 0.11±0.40(Predicted)
• CAS DataBase Reference: 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID(3682-32-4)
• EPA Substance Registry System: 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID(3682-32-4)

Safety Data

• Hazard Codes: Xn,Xi
• Statements: 20/21/22-33-36/37/38
• Safety Statements: 36/37-37/39-26
• WGK Germany: 3
• Hazardous Substances Data: 3682-32-4(Hazardous Substances Data)

Usage

Purification Methods

Crystallise the acid from dilute HCl solution. The crystals are dried over CaCl2 in a vacuum desiccator. It has also been purified by dissolution in aqueous alkali and precipitation by addition of water. It is a reagent for cobalt. [Beilstein 11 H 331, 11 II 189, 11 III 621, 11 IV 668.]

InChI:InChI=1/C10H7NO5S/c12-10-7-4-2-1-3-6(7)9(17(14,15)16)5-8(10)11-13/h1-5,12H,(H,14,15,16)/p-2

Downstream Products

• 567-13-5 2-amino-1-naphthol-4-sulfonic acid