Registration Dossier
Registration Dossier
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EC number: 271-178-7 | CAS number: 68516-75-6
Substance identity
Identification
- Display Name:
- N,N'-naphthalene-1,5-diylbis[4-[(2,3-dichlorophenyl)azo]-3-hydroxynaphthalene-2-carboxamide]
- EC Number:
- 271-178-7
- EC Name:
- N,N'-naphthalene-1,5-diylbis[4-[(2,3-dichlorophenyl)azo]-3-hydroxynaphthalene-2-carboxamide]
- CAS Number:
- 68516-75-6
- Molecular formula:
- C44H26Cl4N6O4
- IUPAC Name:
- N,N'-naphthalene-1,5-diylbis{4-[(2,3-dichlorophenyl)diazenyl]-3-hydroxy-2-naphthamide}
Type of Substance
- Composition:
- mono-constituent substance
- Origin:
- organic
Substance Identifiers
Compositions
Boundary Composition(s) open all close all
Nanoform
| Nanoform |
- State Form:
- solid: nanoform
Constituent 1
- Reference substance name:
- N,N'-naphthalene-1,5-diylbis[4-[(2,3-dichlorophenyl)azo]-3-hydroxynaphthalene-2-carboxamide]
- EC Number:
- 271-178-7
- EC Name:
- N,N'-naphthalene-1,5-diylbis[4-[(2,3-dichlorophenyl)azo]-3-hydroxynaphthalene-2-carboxamide]
- CAS Number:
- 68516-75-6
- Molecular formula:
- C44H26Cl4N6O4
- IUPAC Name:
- N,N'-naphthalene-1,5-diylbis{4-[(2,3-dichlorophenyl)diazenyl]-3-hydroxy-2-naphthamide}
Characterisation of nanoforms
- Type of information reported:
- single nanoform
- Name of nanoform:
- C.I. Pigment Brown 41 - joint submission
Shape
Shape descriptionopen allclose all
- Shape category:
- spheroidal
- Shape:
- cubic
- Pure shape:
- no
- Range:
- > 19 - < 60 %
- Shape category:
- spheroidal
- Shape:
- spherical
- Pure shape:
- no
- Range:
- > 1 - < 10 %
- Shape category:
- elongated
- Shape:
- rod
- Pure shape:
- no
- Range:
- > 30 - < 80 %
Particle size distribution and range
Particle size distribution and rangeopen allclose all
- Shape category:
- elongated
Percentileopen allclose all
- Percentile:
- D10
- Range:
- ca. 0.01 - ca. 0.055 μm
- Percentile:
- D50
- Range:
- ca. 0.015 - ca. 0.07 μm
- Percentile:
- D90
- Range:
- ca. 0.04 - ca. 0.1 μm
- Range of length:
- > 0.01 - < 0.54 μm
- Range of aspect ratio (:1):
- >= 3.8 - <= 4.6
- Fraction of constituent particles in the size range 1-100 nm:
- >= 80 - ca. 100 %
Crystallinity
Structures
- Structure:
- crystalline
- Name:
- C.I. Pigment Brown 41 - joint submission
- 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
Nanoform
| Nanoform |
- State Form:
- solid: nanoform
Constituent 1
- Reference substance name:
- N,N'-naphthalene-1,5-diylbis[4-[(2,3-dichlorophenyl)azo]-3-hydroxynaphthalene-2-carboxamide]
- EC Number:
- 271-178-7
- EC Name:
- N,N'-naphthalene-1,5-diylbis[4-[(2,3-dichlorophenyl)azo]-3-hydroxynaphthalene-2-carboxamide]
- CAS Number:
- 68516-75-6
- Molecular formula:
- C44H26Cl4N6O4
- IUPAC Name:
- N,N'-naphthalene-1,5-diylbis{4-[(2,3-dichlorophenyl)diazenyl]-3-hydroxy-2-naphthamide}
Characterisation of nanoforms
- Type of information reported:
- single nanoform
- Name of nanoform:
- C.I. Pigment Brown 41 - joint submission
Shape
Shape descriptionopen allclose all
- Shape category:
- spheroidal
- Remarks:
- multimodal shapes containing about 50% spheroidal particles and about 50% elongated particles
- Shape:
- cubic
- Pure shape:
- no
- Typical composition:
- ca. 45 %
- Range:
- > 19 - < 60 %
- Shape category:
- spheroidal
- Remarks:
- multimodal shapes containing about 50% spheroidal particles and about 50% elongated particles
- Shape:
- spherical
- Pure shape:
- no
- Typical composition:
- ca. 5 %
- Range:
- > 1 - < 10 %
- Shape category:
- elongated
- Remarks:
- multimodal shapes containing about 50% spheroidal particles and about 50% elongated particles
- Shape:
- rod
- Pure shape:
- no
- Typical composition:
- ca. 50 %
- Range:
- > 30 - < 80 %
Particle size distribution and range
Particle size distribution and rangeopen allclose all
- Shape category:
- spheroidal
- Remarks:
- multimodal shapes containing about 50% spheroidal particles and about 50% elongated particles
Percentileopen allclose all
- Percentile:
- D10
- Typical value:
- ca. 0.025 μm
- Range:
- ca. 0.01 - ca. 0.045 μm
- Percentile:
- D50
- Typical value:
- ca. 0.042 μm
- Range:
- ca. 0.02 - ca. 0.6 μm
- Percentile:
- D90
- Typical value:
- ca. 0.069 μm
- Range:
- ca. 0.05 - ca. 0.09 μm
- Fraction of constituent particles in the size range 1-100 nm:
- >= 80 - ca. 100 %
- Shape category:
- elongated
- Remarks:
- multimodal shapes containing about 50% spheroidal particles and about 50% elongated particles
Percentileopen allclose all
- Percentile:
- D10
- Typical value:
- ca. 0.025 μm
- Range:
- ca. 0.01 - ca. 0.045 μm
- Percentile:
- D50
- Typical value:
- ca. 0.042 μm
- Range:
- ca. 0.02 - ca. 0.06 μm
- Percentile:
- D90
- Typical value:
- ca. 0.069 μm
- Range:
- ca. 0.05 - ca. 0.09 μm
- Typical length:
- ca. 0.216 μm
- Range of length:
- ca. 0.055 - ca. 0.38 μm
- Typical aspect ratio (:1):
- ca. 4.2 :1
- Range of aspect ratio (:1):
- >= 4 - <= 4.4
- Fraction of constituent particles in the size range 1-100 nm:
- >= 80 - ca. 100 %
Crystallinity
Structures
- Structure:
- crystalline
- Name:
- C.I. Pigment Brown 41
- Pure structure:
- yes
- Typical composition:
- 100 %
- Crystal system:
- other: unknown
Specific surface area
- Typical specific surface area:
- ca. 48 m²/g
- Range of specific surface area:
- >= 33 - <= 63 m²/g
- Skeletal density:
- 1.562 g/cm³
Surface functionalisation / treatment
- Surface treatment applied:
- no
- State Form:
- solid: particulate/powder
Constituent 1
- Reference substance name:
- N,N'-naphthalene-1,5-diylbis[4-[(2,3-dichlorophenyl)azo]-3-hydroxynaphthalene-2-carboxamide]
- EC Number:
- 271-178-7
- EC Name:
- N,N'-naphthalene-1,5-diylbis[4-[(2,3-dichlorophenyl)azo]-3-hydroxynaphthalene-2-carboxamide]
- CAS Number:
- 68516-75-6
- Molecular formula:
- C44H26Cl4N6O4
- IUPAC Name:
- N,N'-naphthalene-1,5-diylbis{4-[(2,3-dichlorophenyl)diazenyl]-3-hydroxy-2-naphthamide}
Composition(s) generated upon use
Other types of composition(s)
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