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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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-[(4-chloro-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutyramide
EC Number:
236-852-7
EC Name:
2-[(4-chloro-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutyramide
CAS Number:
13515-40-7
Molecular formula:
C17H15ClN4O5
IUPAC Name:
2-[(4-chloro-2-nitrophenyl)diazenyl]-N-(2-methoxyphenyl)-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-[(4-chloro-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutyramide
EC Number:
236-852-7
EC Name:
2-[(4-chloro-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutyramide
CAS Number:
13515-40-7
Molecular formula:
C17H15ClN4O5
IUPAC Name:
2-[(4-chloro-2-nitrophenyl)diazenyl]-N-(2-methoxyphenyl)-3-oxobutanamide

Characterisation of nanoforms

Type of information reported:
single nanoform
Name of nanoform:
C.I. Pigment Yellow 73-joint submission

Shape

Shape descriptionopen allclose all
Shape category:
spheroidal
Shape:
cubic
Pure shape:
no
Range:
>= 0 - <= 100 %
Shape category:
spheroidal
Shape:
spherical
Pure shape:
no
Range:
>= 0 - <= 100 %
Shape category:
elongated
Shape:
rod
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:
> 0.055 - < 0.145 μm
Percentile:
D50
Range:
> 0.015 - < 0.1 μm
Percentile:
D10
Range:
> 0.01 - < 0.085 μm
Range of length:
> 0.07 - < 0.63 μm
Range of aspect ratio (:1):
>= 3 - <= 5
Additional information:
The determined particle size distribution relates to both shape categories. The smallest dimension of all particles had been considered.

ASSEMBLY STRUCTURE: homogeneous and solid particles.

RIGIDITY: not required/appropriate.
Fraction of constituent particles in the size range 1-100 nm:
> 80 - ca. 100 %
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D90
Range:
> 0.055 - < 0.145 μm
Percentile:
D50
Range:
> 0.015 - < 0.1 μm
Percentile:
D10
Range:
> 0.01 - < 0.085 μm
Fraction of constituent particles in the size range 1-100 nm:
> 80 - ca. 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
C.I. Pigment Yellow 73
Pure structure:
yes

Specific surface area

Range of specific surface area:
>= 5 - <= 125 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
2-[(4-chloro-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutyramide
EC Number:
236-852-7
EC Name:
2-[(4-chloro-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutyramide
CAS Number:
13515-40-7
Molecular formula:
C17H15ClN4O5
IUPAC Name:
2-[(4-chloro-2-nitrophenyl)diazenyl]-N-(2-methoxyphenyl)-3-oxobutanamide

Characterisation of nanoforms

Type of information reported:
single nanoform
Name of nanoform:
C.I. Pigment Yellow 73 - joint submission

Shape

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

Particle size distribution and range

Particle size distribution and rangeopen allclose all
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Range:
ca. 0.01 - ca. 0.085 μm
Percentile:
D50
Range:
ca. 0.015 - ca. 0.1 μm
Percentile:
D90
Range:
ca. 0.055 - ca. 0.145 μm
Fraction of constituent particles in the size range 1-100 nm:
>= 80 - <= 100 %
Shape category:
elongated
Percentileopen allclose all
Percentile:
D10
Range:
ca. 0.01 - ca. 0.085 μm
Percentile:
D50
Range:
ca. 0.015 - ca. 0.1 μm
Percentile:
D90
Range:
ca. 0.055 - ca. 0.145 μm
Range of length:
>= 0.07 - <= 0.63 μm
Range of aspect ratio (:1):
>= 3 - <= 5
Additional information:
The particle size distribution relates to all shape categories
Fraction of constituent particles in the size range 1-100 nm:
>= 80 - <= 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
C.I. Pigment Yellow 73
Pure structure:
yes

Specific surface area

Range of specific surface area:
>= 5 - <= 125 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-[(4-chloro-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutyramide
EC Number:
236-852-7
EC Name:
2-[(4-chloro-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutyramide
CAS Number:
13515-40-7
Molecular formula:
C17H15ClN4O5
IUPAC Name:
2-[(4-chloro-2-nitrophenyl)diazenyl]-N-(2-methoxyphenyl)-3-oxobutanamide

Characterisation of nanoforms

Type of information reported:
single nanoform
Name of nanoform:
C.I. Pigment Yellow 73-joint submission

Shape

Shape descriptionopen allclose all
Shape category:
spheroidal
Remarks:
multimodal shapes containing about 94% spheroidal particles and about 6% elongated particles
Shape:
cubic
Pure shape:
no
Typical composition:
ca. 89 %
Range:
> 70 - < 95 %
Shape category:
spheroidal
Remarks:
multimodal shapes containing about 94% spheroidal particles and about 6% elongated particles
Shape:
spherical
Pure shape:
no
Typical composition:
ca. 5 %
Range:
> 0 - < 25 %
Shape category:
elongated
Remarks:
multimodal shapes containing about 94% spheroidal particles and about 6% elongated particles
Shape:
rod
Pure shape:
no
Typical composition:
ca. 6 %
Range:
> 0 - < 30 %

Particle size distribution and range

Particle size distribution and rangeopen allclose all
Shape category:
elongated
Percentileopen allclose all
Percentile:
D90
Typical value:
ca. 0.089 μm
Range:
> 0.065 - < 0.11 μm
Percentile:
D50
Typical value:
ca. 0.056 μm
Range:
> 0.035 - < 0.08 μm
Percentile:
D10
Typical value:
ca. 0.039 μm
Range:
> 0.015 - < 0.06 μm
Typical length:
ca. 0.284 μm
Range of length:
> 0.095 - < 0.47 μm
Typical aspect ratio (:1):
ca. 3.6 :1
Range of aspect ratio (:1):
>= 3 - <= 4.3
Additional information:
The determined particle size distribution relates to both shape categories. The smallest dimension of all particles had been considered.


ASSEMBLY STRUCTURE: homogeneous and solid particles.

RIGIDITY: not required/appropriate.
Fraction of constituent particles in the size range 1-100 nm:
> 80 - ca. 100 %
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D90
Typical value:
ca. 0.089 μm
Range:
> 0.065 - < 0.11 μm
Percentile:
D50
Typical value:
ca. 0.056 μm
Range:
> 0.035 - < 0.08 μm
Percentile:
D10
Typical value:
ca. 0.039 μm
Range:
> 0.015 - < 0.06 μm
Additional information:
The determined particle size distribution relates to both shape categories. The smallest dimension of all particles had been considered.


ASSEMBLY STRUCTURE: homogeneous and solid particles.

RIGIDITY: not required/appropriate.
Fraction of constituent particles in the size range 1-100 nm:
> 80 - ca. 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
C.I. Pigment Yellow 73
Pure structure:
yes
Crystal system:
other: not known

Specific surface area

Typical specific surface area:
ca. 21 m²/g
Range of specific surface area:
>= 15 - <= 27 m²/g
Skeletal density:
1.478 g/cm³

Surface functionalisation / treatment

Surface treatment applied:
no
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
2-[(4-chloro-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutyramide
EC Number:
236-852-7
EC Name:
2-[(4-chloro-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutyramide
CAS Number:
13515-40-7
Molecular formula:
C17H15ClN4O5
IUPAC Name:
2-[(4-chloro-2-nitrophenyl)diazenyl]-N-(2-methoxyphenyl)-3-oxobutanamide

Characterisation of nanoforms

Type of information reported:
single nanoform
Name of nanoform:
C.I. Pigment Yellow 73 - joint submission

Shape

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

Particle size distribution and range

Particle size distribution and rangeopen allclose all
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Typical value:
ca. 0.035 μm
Range:
ca. 0.01 - ca. 0.085 μm
Percentile:
D50
Typical value:
ca. 0.06 μm
Range:
ca. 0.015 - ca. 0.1 μm
Percentile:
D90
Typical value:
ca. 0.09 μm
Range:
ca. 0.055 - ca. 0.145 μm
Additional information:
The particle size distribution relates to all shape categories
Fraction of constituent particles in the size range 1-100 nm:
>= 80 - <= 100 %
Shape category:
elongated
Percentileopen allclose all
Percentile:
D10
Typical value:
ca. 0.03 μm
Range:
ca. 0.01 - ca. 0.085 μm
Percentile:
D50
Typical value:
ca. 0.05 μm
Range:
ca. 0.015 - ca. 0.1 μm
Percentile:
D90
Typical value:
ca. 0.07 μm
Range:
ca. 0.055 - ca. 0.145 μm
Range of length:
>= 0.07 - <= 0.63 μm
Range of aspect ratio (:1):
>= 3 - <= 5
Additional information:
The particle size distribution relates to all shape categories. The smallest dimension of all particles had been considered.
Fraction of constituent particles in the size range 1-100 nm:
>= 80 - <= 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
C.I. Pigment Yellow 73
Pure structure:
yes

Specific surface area

Typical specific surface area:
ca. 60 m²/g
Range of specific surface area:
>= 5 - <= 125 m²/g
Skeletal density:
ca. 1.5 g/cm³

Surface functionalisation / treatment

Surface treatment applied:
no

Composition(s) generated upon use

Other types of composition(s)