Vat Blue 48

Base Information

• Chemical Name: Vat Blue 48
• CAS No.: 6417-56-7
• Molecular Formula: C₁₆H₄Br₆N₂O₂
• Molecular Weight: 735.644
• Hs Code.: 2933990090
• Mol file: 6417-56-7.mol

Synonyms:[D2,2'-Biindoline]-3,3'-dione,4,4',5,5',7,7'-hexabromo- (8CI); C.I. 73075; C.I. Vat Blue 48

Chemical Property of Vat Blue 48

Chemical Property:

• Vapor Pressure: 4.54E-16mmHg at 25°C
• Refractive Index: 1.779
• Boiling Point: 635.8°C at 760 mmHg
• Flash Point: 338.3°C
• PSA: 58.20000
• Density: 2.607g/cm³
• LogP: 7.66580

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of Vat Blue 48

There total 3 articles about Vat Blue 48 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:

1H,1H'-2,2'-Biindolylidene-3,3'-dione (482-89-3,12626-73-2) → 4,5,7,4',5',7'-hexabromo-1H,1'H-[2,2']biindolylidene-3,3'-dione (6417-56-7)

Guidance literature:

With chlorosulfonic acid; beim Bromieren;

Reference yield:

→ 4,5,7,4',5',7'-hexabromo-1H,1'H-[2,2']biindolylidene-3,3'-dione (6417-56-7)

Guidance literature:

With sulfuric acid; bromine; at 55 - 60 ℃;

Reference yield:

5,7-dibromo-2-(5,7-dibromo-1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one (2475-31-2) → 4,5,7,4',5',7'-hexabromo-1H,1'H-[2,2']biindolylidene-3,3'-dione (6417-56-7)

Guidance literature:

With sulfuric acid; beim Bromieren;

upstream raw materials:

1H,1H'-2,2'-Biindolylidene-3,3'-dione

5,7-dibromo-2-(5,7-dibromo-1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one