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Identification

Chemical structure
Display Name:
4-[(2,5-dichlorophenyl)azo]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamide
EC Number:
230-258-1
EC Name:
4-[(2,5-dichlorophenyl)azo]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamide
CAS Number:
6992-11-6
Molecular formula:
C24H15Cl2N5O3
IUPAC Name:
4-[(2,5-dichlorophenyl)diazenyl]-3-hydroxy-N-(2-oxo-2,3-dihydro-1H-benzimidazol-5-yl)-2-naphthamide

Type of Substance

Composition:
mono-constituent substance
Origin:
organic

Substance Identifiers open all close all

  • Hififast Brown HF25
  • PBR25
  • Compositions

    Boundary Composition(s) open all close all

    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    4-[(2,5-dichlorophenyl)azo]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamide
    EC Number:
    230-258-1
    EC Name:
    4-[(2,5-dichlorophenyl)azo]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamide
    CAS Number:
    6992-11-6
    Molecular formula:
    C24H15Cl2N5O3
    IUPAC Name:
    4-[(2,5-dichlorophenyl)diazenyl]-3-hydroxy-N-(2-oxo-2,3-dihydro-1H-benzimidazol-5-yl)-2-naphthamide

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    C.I. Pigment Brown 25 - joint submission

    Shape

    Shape descriptionopen allclose all
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    no
    Range:
    > 30 - < 80 %
    Shape category:
    spheroidal
    Shape:
    spherical
    Pure shape:
    no
    Range:
    > 0 - < 30 %
    Shape category:
    spheroidal
    Shape:
    cubic
    Pure shape:
    no
    Range:
    > 70 - < 100 %

    Particle size distribution and range

    Particle size distribution and rangeopen allclose all
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D10
    Range:
    >= 0.01 - <= 0.03 μm
    Percentile:
    D50
    Range:
    > 0.015 - < 0.04 μm
    Percentile:
    D90
    Range:
    > 0.02 - < 0.05 μm
    Range of length:
    > 0.01 - < 0.205 μm
    Range of aspect ratio (:1):
    >= 3 - <= 5.2
    Additional information:
    The determined particle size distribution relates to both shape categories. Due to the very low number of elongated particles, no separate evaluation for rods had been conducted. The smallest dimension of all particles had been considered.
    Fraction of constituent particles in the size range 1-100 nm:
    >= 90 - ca. 100 %
    Shape category:
    spheroidal
    Percentileopen allclose all
    Percentile:
    D10
    Range:
    > 0.01 - < 0.03 μm
    Percentile:
    D50
    Range:
    > 0.015 - < 0.04 μm
    Percentile:
    D90
    Range:
    > 0.02 - < 0.05 μm
    Additional information:
    multimodal shapes containing >20 - <70% spheroidal and >30 - <80% elongated particles
    Fraction of constituent particles in the size range 1-100 nm:
    >= 90 - ca. 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    C.I. Pigment Brown 25
    Pure structure:
    yes

    Specific surface area

    Range of specific surface area:
    >= 5 - <= 200 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:
    4-[(2,5-dichlorophenyl)azo]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamide
    EC Number:
    230-258-1
    EC Name:
    4-[(2,5-dichlorophenyl)azo]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamide
    CAS Number:
    6992-11-6
    Molecular formula:
    C24H15Cl2N5O3
    IUPAC Name:
    4-[(2,5-dichlorophenyl)diazenyl]-3-hydroxy-N-(2-oxo-2,3-dihydro-1H-benzimidazol-5-yl)-2-naphthamide

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    C.I. Pigment Brown 025 - joint submission

    Shape

    Shape descriptionopen allclose all
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    no
    Typical composition:
    ca. 43 %
    Range:
    > 35 - < 55 %
    Shape category:
    spheroidal
    Shape:
    spherical
    Pure shape:
    no
    Typical composition:
    ca. 3 %
    Range:
    > 0 - < 15 %
    Shape category:
    spheroidal
    Shape:
    cubic
    Pure shape:
    no
    Typical composition:
    ca. 54 %
    Range:
    > 45 - < 65 %

    Particle size distribution and range

    Particle size distribution and rangeopen allclose all
    Shape category:
    elongated
    Remarks:
    rigidity: straight
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    ca. 0.015 μm
    Range:
    >= 0.01 - <= 0.03 μm
    Percentile:
    D50
    Typical value:
    ca. 0.025 μm
    Range:
    > 0.015 - < 0.04 μm
    Percentile:
    D90
    Typical value:
    ca. 0.03 μm
    Range:
    > 0.02 - < 0.05 μm
    Typical length:
    ca. 0.101 μm
    Range of length:
    > 0.05 - < 0.155 μm
    Typical aspect ratio (:1):
    ca. 3.8 :1
    Range of aspect ratio (:1):
    >= 3.6 - <= 4
    Additional information:
    The determined particle size distribution relates to both shape categories. Due to the very low number of elongated particles, no separate evaluation for rods had been conducted. The smallest dimension of all particles had been considered.
    Fraction of constituent particles in the size range 1-100 nm:
    >= 90 - ca. 100 %
    Shape category:
    spheroidal
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    ca. 0.015 μm
    Range:
    > 0.01 - < 0.03 μm
    Percentile:
    D50
    Typical value:
    ca. 0.025 μm
    Range:
    > 0.015 - < 0.04 μm
    Percentile:
    D90
    Typical value:
    ca. 0.03 μm
    Range:
    > 0.02 - < 0.05 μm
    Additional information:
    multimodal shapes containing about 57% spheroidal particles and about 43% elongated particles.
    The determined particle size distribution relates to both shape categories. Due to the very low number of elongated particles, no separate evaluation for rods had been conducted. The smallest dimension of all particles had been considered.
    Fraction of constituent particles in the size range 1-100 nm:
    >= 90 - ca. 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    C.I. Pigment Brown 25
    Pure structure:
    yes
    Crystal system:
    other: unknown

    Specific surface area

    Typical specific surface area:
    ca. 90 m²/g
    Range of specific surface area:
    >= 63 - <= 117 m²/g
    Range of volume specific surface area:
    > 0.522 - < 0.527 other: cm3
    Skeletal density:
    > 1.406 - < 1.419 g/cm³

    Surface functionalisation / treatment

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


    Constituent 1
    Chemical structure
    Reference substance name:
    4-[(2,5-dichlorophenyl)azo]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamide
    EC Number:
    230-258-1
    EC Name:
    4-[(2,5-dichlorophenyl)azo]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamide
    CAS Number:
    6992-11-6
    Molecular formula:
    C24H15Cl2N5O3
    IUPAC Name:
    4-[(2,5-dichlorophenyl)diazenyl]-3-hydroxy-N-(2-oxo-2,3-dihydro-1H-benzimidazol-5-yl)-2-naphthamide
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    4-[(2,5-dichlorophenyl)azo]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamide
    EC Number:
    230-258-1
    EC Name:
    4-[(2,5-dichlorophenyl)azo]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamide
    CAS Number:
    6992-11-6
    Molecular formula:
    C24H15Cl2N5O3
    IUPAC Name:
    4-[(2,5-dichlorophenyl)diazenyl]-3-hydroxy-N-(2-oxo-2,3-dihydro-1H-benzimidazol-5-yl)-2-naphthamide
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    4-[(2,5-dichlorophenyl)azo]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamide
    EC Number:
    230-258-1
    EC Name:
    4-[(2,5-dichlorophenyl)azo]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxynaphthalene-2-carboxamide
    CAS Number:
    6992-11-6
    Molecular formula:
    C24H15Cl2N5O3
    IUPAC Name:
    4-[(2,5-dichlorophenyl)diazenyl]-3-hydroxy-N-(2-oxo-2,3-dihydro-1H-benzimidazol-5-yl)-2-naphthamide

    Composition(s) generated upon use

    Other types of composition(s)

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