Pigment Red 179

Synonym(s):2,9-Dimethyl-anthra[2,1,9-def:6,5,10-d′e′f′]diisoquinoline-1,3,8,10(2H,9H)-tetrone;MePTC;MePTCDI

CAS NO.：5521-31-3
Empirical Formula: C26H14N2O4
Molecular Weight: 418.4
MDL number: MFCD00071975
EINECS: 226-866-1
SAFETY DATA SHEET (SDS)
Update Date: 2026-06-24 18:39:39

What is Pigment Red 179?

The Uses of Pigment Red 179

Me-PTCDI can be used in the preparation of the hole transporting layers (HTLs), which can further be utilized in the fabrication of perovskite photovoltaic (PPV) cells.

General Description

N,?N′-Dimethyl-3,4,9,10-perylenedicarboximide (Me-PTCDI) is a perylene derivative that can be used as a thermally stable material in the development of an n-type semiconductor device. It has the capacity to have an ordered growth on a variety of substrates. Its conductivity with respect to the frequency tends to increase at different temperatures.

Flammability and Explosibility

Not classified

Properties and Applications

TEST ITEMS	SPECIFICATION
APPEARANCE	RED POWDER
SHADE	BLUISH
HEAT RESISTANCE	300 °C min
LIGHT FASTNESS	7-8
ACID RESISTANCE	5
ALKALI RESISTANCE	5
FASTNESS TO BLEEDING	5
OIL ABSORPTION	35-50%
SPECIFIC SURFACE	28m ² /g
DENSITY	1.60 g/cm ³
RESIDUE ON 80 MESH	5.0% max
WATER SOLUBLE	1.0% max
VOLATITE 105 °C	1.0% max
TINTING STRENGTH	100-105 %

Properties of Pigment Red 179

Melting point:	>400°C
Boiling point:	694.8±28.0 °C(Predicted)
Density	1.594±0.06 g/cm3(Predicted)
form	powder
pka	-2.29±0.20(Predicted)
color	Orange to Brown to Dark purple
Water Solubility	5.5μg/L at 23℃
λmax	550nm(H2SO4)(lit.)
EPA Substance Registry System	2,9-Dimethylanthra(2,1,9-def:6,5,10-d'e'f')diisoquinoline-1,3,8,10(2H,9H)-tetrone (5521-31-3)

Safety information for Pigment Red 179

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.