VatBlue4B , 36% , 2475-31-2

CAS NO.：2475-31-2

Empirical Formula: C16H6Br4N2O2

Molecular Weight: 577.85

MDL number: MFCD00049382

EINECS: 219-598-1

PRODUCT Properties

• Boiling point: 563.4±50.0 °C(Predicted)
• Density: 2.5583 (rough estimate)
• refractive index: 1.6300 (estimate)
• Colour Index: 73065
• pka: -7.15±0.20(Predicted)
• CAS DataBase Reference: 2475-31-2(CAS DataBase Reference)
• NIST Chemistry Reference: c.i. Vat blue 5(2475-31-2)
• EPA Substance Registry System: 3H-Indol-3-one, 5,7-dibromo-2-(5,7-dibromo-1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- (2475-31-2)

Description and Uses

Ciba Blue 2B (CAS# 2475-31-2) is a halogenated indigo dye and pollutant contributing 1,3,6,8-tetrabromocarbazole and some other halogenated carbazoles to the environment.

Safety

• RTECS: NM3259100