3049-71-6

Basic information

• Product Name: 2,9-bis[4-(phenylazo)phenyl]anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetrone
• Synonyms: 2,9-bis[4-(phenylazo)phenyl]anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetrone;pigment red 178;Anthra2,1,9-def:6,5,10-defdiisoquinoline-1,3,8,10(2H,9H)-tetrone, 2,9-bis4-(phenylazo)phenyl-;C.I. PIGMENT RED 178);Red 39-1101;N,N'-Bis(azobenzene-4-yl)perylene-3,4:9,10-bis(dicarbimide);Sandrin Red PRK;Anthra(2,1,9-def:6,5,10-D'E'F')diisoquinoline-1,3,8,10(2H,9H)-tetrone, 2,9-bis(4-(2-phenyldiazenyl)phenyl)-
• CAS NO: 3049-71-6
• Molecular Formula: C₄₈H₂₆N₆O₄
• Molecular Weight: 750.771
• EINECS: 221-264-5
• Product Categories: Organics
• Mol File: 3049-71-6.mol
• Article Data: 1

Chemical Properties

• Melting Point: 278-279 °C
• Appearance: /
• Density: 1.44±0.1 g/cm3(Predicted)
• PKA: 1.19±0.20(Predicted)
• CAS DataBase Reference: 2,9-bis[4-(phenylazo)phenyl]anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetrone(CAS DataBase Reference)
• NIST Chemistry Reference: 2,9-bis[4-(phenylazo)phenyl]anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetrone(3049-71-6)
• EPA Substance Registry System: 2,9-bis[4-(phenylazo)phenyl]anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetrone(3049-71-6)

Safety Data

• Hazardous Substances Data: 3049-71-6(Hazardous Substances Data)

Usage

Flammability and Explosibility

Notclassified

Upstream product

• 60-09-3 aniline yellow 
• 128-69-8 perylene-3,4,9,10-tetracarboxylic acid 3,4:9,10-dianhydride 

Relevant articles and documents

Greener Dye Synthesis: Continuous, Solvent-Free Synthesis of Commodity Perylene Diimides by Twin-Screw Extrusion

A continuous, scalable, and solvent-free method for the synthesis of various naphthalic imides and perylene diimides (PDIs) using twin-screw extrusion (TSE) is reported. Using TSE, naphthalic imides were obtained quantitatively without the need for excess amine reactant or product purification. With good functional-group tolerance, alkyl and benzyl amine derived PDIs (incl. commercial dyes) were obtained in 50–99 % yield. Use of K2CO3, enabled synthesis of more difficult aniline-derived PDIs. Furthermore, an automated continuous TSE process for Pigments Black 31 and 32 is demonstrated, with a throughput rate of about 1500 g day?1, corresponding to a space time yield of about 30×103 kg m?3 day?1, which is 1–2 orders of magnitude greater than for solvent-based batch methods. These methods provide substantial waste reductions and improved efficiency compared to conventional solvent-based methods.