Pigment Yellow 138;3,4,5,6-Tetrachloro-N-[2-(4,5,6,7-tetrachloro-2,3-dihydro-1,3-dioxo-1H-inden-2-yl)-8-Quinolyl]phthalimide

CAS: 30125-47-4

Ref. 3D-FP40626

Product Information

• Name: Pigment Yellow 138;3,4,5,6-Tetrachloro-N-[2-(4,5,6,7-tetrachloro-2,3-dihydro-1,3-dioxo-1H-inden-2-yl)-8-Quinolyl]phthalimide
• Brand: Biosynth
• Description: Pigment Yellow 138 is a polycarboxylic acid with the chemical formula C8H6Cl4O2. Pigment Yellow 138 has a molecular weight of 434.07 and can be used as a yellow pigment in paint, plastics, and textiles. Pigment Yellow 138 has an acidic pH and can be prepared by reacting phthalic anhydride with sodium hydroxide in aqueous solution to produce the sodium salt of pigment yellow 138. Pigment Yellow 138 is also soluble in hydroxide solutions, which makes it an excellent cross-linking agent for polymers. The color of pigments depends on the size of their particles; pigments with larger particle sizes are more opaque than those with smaller particle sizes.

Chemical properties

• Molecular weight: 693.96 g/mol
• Formula: C₂₆H₆Cl₈N₂O₄
• Purity: Strengh Min 95%.