Ciba Blue 2B (Technical Grade)

CAS: 2475-31-2

Ref. TR-C535730

Product Information

• Name: Ciba Blue 2B (Technical Grade)
• Synonyms: Indigotin, 5,5',7,7'-tetrabromo- (6CI), [D2,2'-Biindoline]-3,3'-dione, 5,5',7,7'-tetrabromo- (7CI,8CI), 5,7-Dibromo-2-(5,7-dibromo-1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one, 5,5',7,7'-Tetrabromoindigo, Ahcovat Printing Blue 2BD, Amanthrene Navy Blue 2B-MF, Amanthrene Navy Blue New, Arlanone Blue 2B, BASF Brilliant Indigo 4B, BASF Brilliant Indigo 4B-D, BASF Brilliant Indigo 4BC, Brilliant Indigo 4B, Brilliant Indigo 4B-D, Brilliant Indigo 4BJD, Brilliant Indigo 4BR, Brilliant Indigo 4BV, Bromindigo, Bromindigo 2BD, C.I. 73065, C.I. Vat Blue 5, Ciba Blue 2B, Ciba Blue 2BD, Ciba Blue 2BDG, Ciba Blue 2BN, Ciba Blue 2BPF, Ciba Brilliant Blue BS, Durindone Blue 4B, Durindone Blue 4BC, Durindone Blue 4BCP, Durindone Printing Blue 4BC, Hostavat Blue 2BD, Hostavat Blue 4BR, Indigo 4B, Mitsui Tsuya Indigo 2B, NSC 400980, Solindene Blue 2BD, Sulfanthrene Blue 2B, Tetra Blue 2B, Tetrabromoindigo, Thiovat Brilliant Indigo 4BR, Tina Blue 2B, Tsuya Indigo 2B, Vat Blue 4B
• Brand: TRC
• Description: Applications 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.References Burkinshaw, S. M.; et al.: Dyes and Pigments, 97, 374 (2013); Peverly, A. A.; et al.: Chemosphere, 144, 273 (2016)

Chemical properties

• Molecular weight: 577.85
• Formula: C₁₆H₆Br₄N₂O₂
• Color/Form: Neat
• InChI: InChI=1S/C16H6Br4N2O2/c17-5-1-7-11(9(19)3-5)21-13(15(7)23)14-16(24)8-2-6(18)4-10(20)12(8)22-14/h1-4,21,23H
• InChI key: InChIKey=PTWYQANXSNMUTI-BUHFOSPRSA-N
• SMILES: O=C1/C(=C2\Nc3c(Br)cc(Br)cc3C2=O)Nc2c(Br)cc(Br)cc21