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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Identification

Chemical structure
Display Name:
2,2'-[(2,2',5,5'-tetrachloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
EC Number:
244-776-0
EC Name:
2,2'-[(2,2',5,5'-tetrachloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
CAS Number:
22094-93-5
Molecular formula:
C36H32Cl4N6O4
IUPAC Name:
2,2'-[(2,2',5,5'-tetrachlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis[N-(2,4-dimethylphenyl)-3-oxobutanamide]

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:
2,2'-[(2,2',5,5'-tetrachloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
EC Number:
244-776-0
EC Name:
2,2'-[(2,2',5,5'-tetrachloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
CAS Number:
22094-93-5
Molecular formula:
C36H32Cl4N6O4
IUPAC Name:
2,2'-[(2,2',5,5'-tetrachlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis[N-(2,4-dimethylphenyl)-3-oxobutanamide]

Characterisation of nanoforms

Type of information reported:
single nanoform
This nanoform is covered by a registration:
yes
Name of nanoform:
Pigment Yellow 81 nano

Shape

Shape descriptionopen allclose all
Shape category:
elongated
Shape:
rod
Pure shape:
no
Range:
> 0 - < 50 %
Shape category:
spheroidal
Shape:
cubic
Pure shape:
no
Range:
> 0 - < 100 %
Shape category:
spheroidal
Shape:
polyhedral
Range:
> 0 - < 100 %
Shape category:
spheroidal
Shape:
spherical
Pure shape:
no
Range:
> 0 - < 100 %

Particle size distribution and range

Particle size distribution and rangeopen allclose all
Shape category:
elongated
Percentileopen allclose all
Percentile:
D90
Range:
> 50 - < 120 nm
Percentile:
D50
Range:
> 20 - < 60 nm
Percentile:
D10
Range:
> 15 - < 40 nm
Range of length:
> 15 - < 261 nm
Range of aspect ratio (:1):
>= 3 - <= 8
Fraction of constituent particles in the size range 1-100 nm:
> 50 - < 100 %
Shape category:
spheroidal
Remarks:
cubic, polyhedral and spherical
Percentileopen allclose all
Percentile:
D90
Range:
> 50 - < 120 nm
Percentile:
D50
Range:
> 20 - < 60 nm
Percentile:
D10
Range:
> 15 - < 40 nm
Fraction of constituent particles in the size range 1-100 nm:
> 50 - < 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
crystalline
Pure structure:
yes
Crystal system:
not applicable

Specific surface area

Range of specific surface area:
> 10 - < 70 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:
2,2'-[(2,2',5,5'-tetrachloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
EC Number:
244-776-0
EC Name:
2,2'-[(2,2',5,5'-tetrachloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
CAS Number:
22094-93-5
Molecular formula:
C36H32Cl4N6O4
IUPAC Name:
2,2'-[(2,2',5,5'-tetrachlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis[N-(2,4-dimethylphenyl)-3-oxobutanamide]

Characterisation of nanoforms

Type of information reported:
single nanoform
This nanoform is covered by a registration:
yes
Name of nanoform:
Pigment Yellow 81 nano

Shape

Shape descriptionopen allclose all
Shape category:
spheroidal
Shape:
cubic
Pure shape:
no
Range:
> 0 - < 100 %
Shape category:
spheroidal
Shape:
polyhedral
Range:
> 0 - < 100 %
Shape category:
spheroidal
Shape:
spherical
Pure shape:
no
Range:
> 0 - < 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Remarks:
cubic, polyhedral and spherical
Percentileopen allclose all
Percentile:
D90
Typical value:
ca. 77.4 nm
Range:
> 50 - < 120 nm
Percentile:
D50
Typical value:
ca. 41.7 nm
Range:
> 20 - < 60 nm
Percentile:
D10
Typical value:
ca. 22.3 nm
Range:
> 15 - < 40 nm
Fraction of constituent particles in the size range 1-100 nm:
> 99 - < 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
crystalline
Pure structure:
yes
Crystal system:
not applicable

Specific surface area

Typical specific surface area:
ca. 23.6 m²/g
Range of specific surface area:
> 10 - < 70 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
2,2'-[(2,2',5,5'-tetrachloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
EC Number:
244-776-0
EC Name:
2,2'-[(2,2',5,5'-tetrachloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
CAS Number:
22094-93-5
Molecular formula:
C36H32Cl4N6O4
IUPAC Name:
2,2'-[(2,2',5,5'-tetrachlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis[N-(2,4-dimethylphenyl)-3-oxobutanamide]

Characterisation of nanoforms

Type of information reported:
single nanoform
This nanoform is covered by a registration:
no
Name of nanoform:
Pigment Yellow 81 - nanoform

Shape

Shape descriptionopen allclose all
Shape category:
spheroidal
Remarks:
Irregular spheres
Shape:
spherical
Pure shape:
no
Typical composition:
ca. 70 %
Range:
>= 50 - <= 90 %
Shape category:
elongated
Shape:
rod
Pure shape:
no
Typical composition:
ca. 30 %
Range:
>= 10 - <= 50 %

Particle size distribution and range

Particle size distribution and rangeopen allclose all
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Typical value:
ca. 20 nm
Range:
>= 15 - <= 30 nm
Percentile:
D50
Typical value:
ca. 31 nm
Range:
>= 20 - <= 45 nm
Percentile:
D90
Typical value:
ca. 57 nm
Range:
>= 50 - <= 80 nm
Additional information:
The determined particle size distribution relates to both shape categories. The smallest dimension of all particles has been considered.
Fraction of constituent particles in the size range 1-100 nm:
>= 90 - <= 100 %
Shape category:
elongated
Percentileopen allclose all
Percentile:
D10
Typical value:
ca. 20 nm
Range:
>= 15 - <= 30 nm
Percentile:
D50
Typical value:
ca. 31 nm
Range:
>= 20 - <= 45 nm
Percentile:
D90
Typical value:
ca. 57 nm
Range:
>= 50 - <= 80 nm
Typical length:
ca. 93 nm
Range of length:
>= 45 - <= 270 nm
Typical aspect ratio (:1):
ca. 3 :1
Range of aspect ratio (:1):
>= 3 - <= 8
Additional information:
The determined particle size distribution relates to both shape categories. The smallest dimension of all particles has been considered.
Fraction of constituent particles in the size range 1-100 nm:
>= 90 - <= 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
Pigment Yellow 81
Pure structure:
yes
Typical composition:
ca. 86 %
Range:
>= 70 - <= 100 %
Crystal system:
other: undertermined
Description:
XRD generally underestimates crystallinity, it can be assumed that the substance is fully crystalline

Specific surface area

Typical specific surface area:
ca. 25.8 m²/g
Range of specific surface area:
>= 10 - <= 40 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
2,2'-[(2,2',5,5'-tetrachloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
EC Number:
244-776-0
EC Name:
2,2'-[(2,2',5,5'-tetrachloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
CAS Number:
22094-93-5
Molecular formula:
C36H32Cl4N6O4
IUPAC Name:
2,2'-[(2,2',5,5'-tetrachlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis[N-(2,4-dimethylphenyl)-3-oxobutanamide]


Constituent 1
Chemical structure
Reference substance name:
2,2'-[(2,2',5,5'-tetrachloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
EC Number:
244-776-0
EC Name:
2,2'-[(2,2',5,5'-tetrachloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
CAS Number:
22094-93-5
Molecular formula:
C36H32Cl4N6O4
IUPAC Name:
2,2'-[(2,2',5,5'-tetrachlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis[N-(2,4-dimethylphenyl)-3-oxobutanamide]

Composition(s) generated upon use

Other types of composition(s)