2-Diazo-1-naphthol-4-sulfonate

Base Information

• Chemical Name: 2-Diazo-1-naphthol-4-sulfonate
• CAS No.: 64173-96-2
• Molecular Formula: C10H5N2NaO4S
• Molecular Weight: 272.216
• Mol file: 64173-96-2.mol

Synonyms:1-Naphthalenesulfonicacid, 3-diazo-3,4-dihydro-4-oxo-, sodium salt (9CI);2-Diazo-1-naphthol-4-sulfonate;

Chemical Property of 2-Diazo-1-naphthol-4-sulfonate

Chemical Property:

• Vapor Pressure: 0.001-0.03Pa at 20-50℃
• Melting Point: 886?°C(lit.)
• Boiling Point: 1470 °C
• PSA: 113.73000
• Density: 9.53
• LogP: 2.29660

Purity/Quality:

99.9% ^*data from raw suppliers

1,2-NAPHTHOQUINONE-2-DIAZIDO-4-SULFONIC ACID SODIUM SALT 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s): T,N
• Hazard Codes: T,N

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2-Diazo-1-naphthol-4-sulfonate

There total 4 articles about 2-Diazo-1-naphthol-4-sulfonate which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 60.0%

2-amino-1-naphthol-4-sulfonic acid (567-13-5) → 1,2-Naphthochinondiazid-(2)-4-sulfonsaeure Natriumsalz (64173-96-2)

Guidance literature:

With copper(II) sulfate; sodium nitrite; In water; for 0.166667h;

Reference yield:

sodium 1-naphthol-4-sulfonate (6099-57-6) → 1,2-Naphthochinondiazid-(2)-4-sulfonsaeure Natriumsalz (64173-96-2)

Guidance literature:

Multi-step reaction with 3 steps

1: 60 percent / NaNO₂, conc. HCl / H₂O / 0.83 h

2: 34 percent / sodium dithionite / aq. NaOH / 0.08 h

3: 60 percent / CuSO₄, NaNO₂ / H₂O / 0.17 h

With hydrogenchloride; sodium dithionite; copper(II) sulfate; sodium nitrite; In sodium hydroxide; water;

Reference yield:

sodium 4-amino-1-naphthalenesulfonate (130-13-2) → 1,2-Naphthochinondiazid-(2)-4-sulfonsaeure Natriumsalz (64173-96-2)

Guidance literature:

Multi-step reaction with 4 steps

1: 90 percent / sodium hydrogensulfite / H₂O / 24 h / Heating

2: 60 percent / NaNO₂, conc. HCl / H₂O / 0.83 h

3: 34 percent / sodium dithionite / aq. NaOH / 0.08 h

4: 60 percent / CuSO₄, NaNO₂ / H₂O / 0.17 h

With hydrogenchloride; sodium dithionite; sodium hydrogensulfite; copper(II) sulfate; sodium nitrite; In sodium hydroxide; water;

upstream raw materials:

2-amino-1-naphthol-4-sulfonic acid

sodium 1-naphthol-4-sulfonate

sodium 4-amino-1-naphthalenesulfonate

2-Nitroso-1-naphthol-4-sulfonsaeure Natriumsalz

Downstream raw materials:

1,2-naphthoquinone-2-diazide-4-sulfonyl chloride

Refernces