Registration Dossier

Diss Factsheets

Identification

Chemical structure
Display Name:
Diisopropyl 3,3'-[(2,5-dichloro-1,4-phenylene)bis[iminocarbonyl(2-hydroxy-3,1-naphthylene)azo]]bis[4-methylbenzoate]
EC Number:
275-639-3
EC Name:
Diisopropyl 3,3'-[(2,5-dichloro-1,4-phenylene)bis[iminocarbonyl(2-hydroxy-3,1-naphthylene)azo]]bis[4-methylbenzoate]
CAS Number:
71566-54-6
Molecular formula:
C50 H42 Cl2 N6 O8
IUPAC Name:
diisopropyl 3,3'-[(2,5-dichloro-1,4-phenylene)bis[iminocarbonyl(2-hydroxy-3,1-naphthylene)azo]]bis[4-methylbenzoate]

Type of Substance

Composition:
mono-constituent substance
Origin:
organic

Substance Identifiers

Compositions

Boundary Composition(s) open all close all

State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Diisopropyl 3,3'-[(2,5-dichloro-1,4-phenylene)bis[iminocarbonyl(2-hydroxy-3,1-naphthylene)azo]]bis[4-methylbenzoate]
EC Number:
275-639-3
EC Name:
Diisopropyl 3,3'-[(2,5-dichloro-1,4-phenylene)bis[iminocarbonyl(2-hydroxy-3,1-naphthylene)azo]]bis[4-methylbenzoate]
CAS Number:
71566-54-6
Molecular formula:
C50 H42 Cl2 N6 O8
IUPAC Name:
diisopropyl 3,3'-[(2,5-dichloro-1,4-phenylene)bis[iminocarbonyl(2-hydroxy-3,1-naphthylene)azo]]bis[4-methylbenzoate]

Characterisation of nanoforms

Type of information reported:
single nanoform

Shape

Shape description
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentile
Percentile:
D50
Typical value:
ca. 40 nm
Range:
> 30 - < 60 nm
Typical length:
ca. 50 nm
Range of aspect ratio (:1):
>= 1 - <= 3
Fraction of constituent particles in the size range 1-100 nm:
> 80 - < 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
Pigment Red 221
Pure structure:
yes

Specific surface area

Typical specific surface area:
ca. 20 m²/g
Range of specific surface area:
> 10 - < 60 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no

Legal Entity Composition(s) open all close all

State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Diisopropyl 3,3'-[(2,5-dichloro-1,4-phenylene)bis[iminocarbonyl(2-hydroxy-3,1-naphthylene)azo]]bis[4-methylbenzoate]
EC Number:
275-639-3
EC Name:
Diisopropyl 3,3'-[(2,5-dichloro-1,4-phenylene)bis[iminocarbonyl(2-hydroxy-3,1-naphthylene)azo]]bis[4-methylbenzoate]
CAS Number:
71566-54-6
Molecular formula:
C50 H42 Cl2 N6 O8
IUPAC Name:
diisopropyl 3,3'-[(2,5-dichloro-1,4-phenylene)bis[iminocarbonyl(2-hydroxy-3,1-naphthylene)azo]]bis[4-methylbenzoate]

Characterisation of nanoforms

Type of information reported:
single nanoform

Shape

Shape description
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D50
Typical value:
ca. 42.5 nm
Range:
> 30 - < 55 nm
Percentile:
D10
Typical value:
ca. 27.7 nm
Range:
> 1 - < 50 nm
Percentile:
D90
Typical value:
ca. 72.2 nm
Range:
> 50 - < 200 nm
Typical length:
47.1 nm
Range of length:
> 10 - < 100 nm
Typical aspect ratio (:1):
ca. 2.8 :1
Range of aspect ratio (:1):
>= 1 - <= 3
Additional information:
Analysis performed on 278 particles
Fraction of constituent particles in the size range 1-100 nm:
> 90 - < 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
Pigment Red 221
Pure structure:
yes
Description:
Powder X-Ray diffraction measurements of very fine crystals cannot be used to properly define the crystal system and Bravais lattice due to signal broadening.
(Herbst, Hunger, Industrial Organic Pigments VCH, 1993, p.44)

Specific surface area

Typical specific surface area:
19 m²/g
Range of specific surface area:
> 15 - < 60 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no

Composition(s) generated upon use

Other types of composition(s)