66881-41-2

Upstream product

• 19262-74-9 p-ethyl benzoate diazonium salt 
• 134-32-7 1-amino-naphthalene 
• 94-09-7 p-aminoethylbenzoate 

Downstream Products

• 10473-09-3 4-[4-(4-dimethylamino-benzylidenamino)-[1]naphthylazo]-benzoic acid ethyl ester 
• 1352059-86-9 C₂₉H₂₃N₅O₂ 
• 1352059-87-0 C₄₃H₃₇N₇O₂ 

Relevant academic research and scientific papers

BLACK DICHROIC DYE

Described is a black dichroic dye composition comprising 2 or more dyes, wherein at least one dye, generally a red dye and optionally a yellow dye, conforms to the formula A and at least one dye, usually a blue dye, conforms to the formula B Ar1-N=N-[Ar2-N=N-]qAr3-N=N-Ar4 (B) with symbols as defined in present claims. The dye composition is well suited for combination with liquid crystal material for use, inter alia, as polarizing film and/or in liquid crystal displays, showing, inter alia, high dichroic ratio and excellent compatibility with the LC material.