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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
EC Number:
253-256-2
EC Name:
5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
CAS Number:
36888-99-0
Molecular formula:
C16H9N5O6
IUPAC Name:
5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione

Type of Substance

Composition:
mono-constituent substance
Origin:
organic

Substance Identifiers open all close all

  • 2,4,6(1H,3H,5H)-Pyrimidinetrione, 5,5'-(1H-isoindole-1,3(2H)- diylidene)bis- (9CI)
  • C.I. 56298
  • C.I. Pigment Yellow 139
  • HF4R
  • Isoindoline yellow
  • Paliotol Yellow ...
  • Pigment Yellow 139
  • Versal Yellow 4RDP
  • Versal Yellow 5RD
  • Versal Yellow 5RDP
  • Versal Yellow 6RD
  • Versalová žluť 4RDP
  • Versalová žluť 5RD
  • Versalová žluť 5RDP
  • Versalová žluť 6RD
  • Compositions

    Boundary Composition(s) open all close all

    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    EC Number:
    253-256-2
    EC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    CAS Number:
    36888-99-0
    Molecular formula:
    C16H9N5O6
    IUPAC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    Nano_ 5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid

    Shape

    Shape description
    Shape category:
    spheroidal
    Shape:
    spherical
    Pure shape:
    yes
    Typical composition:
    ca. 100 %
    Range:
    > 80 - <= 100 %

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    spheroidal
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    ca. 25 nm
    Range:
    > 10 - <= 100 nm
    Percentile:
    D50
    Typical value:
    ca. 45 nm
    Range:
    > 20 - <= 100 nm
    Percentile:
    D90
    Typical value:
    ca. 85 nm
    Range:
    > 30 - <= 100 nm
    Fraction of constituent particles in the size range 1-100 nm:
    > 80 - <= 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    C.I. Pigment Yellow 139
    Pure structure:
    yes

    Specific surface area

    Typical specific surface area:
    ca. 20 m²/g
    Range of specific surface area:
    > 10 - < 500 m²/g

    Surface functionalisation / treatment

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


    Constituent 1
    Chemical structure
    Reference substance name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    EC Number:
    253-256-2
    EC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    CAS Number:
    36888-99-0
    Molecular formula:
    C16H9N5O6
    IUPAC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione

    Legal Entity Composition(s) open all close all

    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    EC Number:
    253-256-2
    EC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    CAS Number:
    36888-99-0
    Molecular formula:
    C16H9N5O6
    IUPAC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    Nano_ 5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid

    Shape

    Shape description
    Shape category:
    spheroidal
    Shape:
    spherical
    Pure shape:
    yes
    Typical composition:
    ca. 100 %
    Range:
    >= 99 - <= 100 %

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    spheroidal
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    ca. 24.6 nm
    Range:
    > 15 - < 50 nm
    Percentile:
    D50
    Typical value:
    ca. 55.8 nm
    Range:
    > 10 - < 100 nm
    Percentile:
    D90
    Typical value:
    ca. 195.2 nm
    Range:
    > 90 - < 250 nm
    Fraction of constituent particles in the size range 1-100 nm:
    >= 95 - < 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    C.I Pigment Yellow 139
    Pure structure:
    yes
    Typical composition:
    100 %
    Range:
    > 98 - <= 100 %

    Specific surface area

    Typical specific surface area:
    18.4 m²/g
    Range of specific surface area:
    > 15 - <= 40 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    EC Number:
    253-256-2
    EC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    CAS Number:
    36888-99-0
    Molecular formula:
    C16H9N5O6
    IUPAC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    This nanoform is covered by a registration:
    yes
    Name of nanoform:
    Pigment Yellow 139

    Shape

    Shape description
    Shape category:
    spheroidal
    Shape:
    spherical
    Pure shape:
    yes
    Range:
    > 80 - < 100 %

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    spheroidal
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    ca. 37 nm
    Range:
    >= 10 - <= 100 nm
    Percentile:
    D50
    Typical value:
    ca. 58 nm
    Range:
    >= 20 - <= 100 nm
    Percentile:
    D90
    Typical value:
    ca. 75 nm
    Range:
    >= 30 - <= 100 nm
    Fraction of constituent particles in the size range 1-100 nm:
    >= 80 - <= 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    Pigment Yellow 139
    Pure structure:
    yes
    Description:
    Pigment looks crystalline in nature.

    Specific surface area

    Typical specific surface area:
    ca. 45.7 m²/g
    Range of specific surface area:
    >= 10 - <= 200 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    EC Number:
    253-256-2
    EC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    CAS Number:
    36888-99-0
    Molecular formula:
    C16H9N5O6
    IUPAC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    Nano_ 5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid

    Shape

    Shape description
    Shape category:
    spheroidal
    Shape:
    spherical
    Pure shape:
    yes
    Typical composition:
    >= 90 %
    Range:
    >= 90 - <= 100 %

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    spheroidal
    Percentileopen allclose all
    Percentile:
    D90
    Typical value:
    ca. 30.01 nm
    Range:
    >= 25 - <= 80 nm
    Percentile:
    D50
    Typical value:
    ca. 21.34 nm
    Range:
    >= 15 - <= 50 nm
    Percentile:
    D10
    Typical value:
    ca. 16.18 nm
    Range:
    >= 10 - <= 40 nm
    Fraction of constituent particles in the size range 1-100 nm:
    >= 90 - <= 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    C.I Pigment Yellow 139
    Pure structure:
    yes
    Typical composition:
    ca. 100 %
    Range:
    >= 90 - <= 100 %
    Crystal system:
    not applicable

    Specific surface area

    Typical specific surface area:
    ca. 61.28 m²/g
    Range of specific surface area:
    >= 50 - <= 70 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: bulk


    Constituent 1
    Chemical structure
    Reference substance name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    EC Number:
    253-256-2
    EC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    CAS Number:
    36888-99-0
    Molecular formula:
    C16H9N5O6
    IUPAC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    EC Number:
    253-256-2
    EC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    CAS Number:
    36888-99-0
    Molecular formula:
    C16H9N5O6
    IUPAC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    C.I. Pigment Yellow 139 - joint submission

    Shape

    Shape descriptionopen allclose all
    Shape category:
    spheroidal
    Shape:
    cubic
    Pure shape:
    no
    Range:
    > 50 - < 90 %
    Shape category:
    spheroidal
    Shape:
    spherical
    Pure shape:
    no
    Range:
    > 0 - < 50 %
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    yes
    Range:
    > 0 - < 40 %

    Particle size distribution and range

    Particle size distribution and rangeopen allclose all
    Shape category:
    spheroidal
    Percentileopen allclose all
    Percentile:
    D10
    Range:
    > 0.005 - <= 0.04 μm
    Percentile:
    D50
    Range:
    > 0.01 - <= 0.06 μm
    Percentile:
    D90
    Range:
    > 0.02 - <= 0.08 μm
    Fraction of constituent particles in the size range 1-100 nm:
    > 80 - <= 100 %
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D10
    Range:
    > 0.005 - <= 0.04 μm
    Percentile:
    D50
    Range:
    > 0.01 - <= 0.06 μm
    Percentile:
    D90
    Range:
    > 0.02 - <= 0.08 μm
    Range of length:
    >= 0.05 - <= 0.15 μm
    Range of aspect ratio (:1):
    >= 3 - <= 4.5
    Fraction of constituent particles in the size range 1-100 nm:
    > 80 - <= 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    C.I. Pigment Yellow 139
    Pure structure:
    yes

    Specific surface area

    Range of specific surface area:
    >= 20 - <= 90 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    EC Number:
    253-256-2
    EC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    CAS Number:
    36888-99-0
    Molecular formula:
    C16H9N5O6
    IUPAC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    This nanoform is covered by a registration:
    yes
    Name of nanoform:
    C.I. Pigment yellow 139

    Shape

    Shape descriptionopen allclose all
    Shape category:
    spheroidal
    Remarks:
    Multimodal shapes
    Shape:
    polyhedral
    Pure shape:
    no
    Range:
    > 1 - < 100 %
    Shape category:
    spheroidal
    Remarks:
    Multimodal shapes
    Shape:
    orthorhombic
    Pure shape:
    no
    Range:
    > 1 - < 100 %
    Shape category:
    elongated
    Remarks:
    Needle-like particles
    Shape:
    rod
    Pure shape:
    yes
    Range:
    > 1 - < 100 %

    Particle size distribution and range

    Particle size distribution and rangeopen allclose all
    Shape category:
    spheroidal
    Remarks:
    Multimodal shapes
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    0.016 μm
    Range:
    > 0.009 - < 0.02 μm
    Percentile:
    D50
    Typical value:
    0.028 μm
    Range:
    > 0.02 - < 0.04 μm
    Percentile:
    D90
    Typical value:
    0.047 μm
    Range:
    > 0.04 - < 0.06 μm
    Fraction of constituent particles in the size range 1-100 nm:
    > 1 - < 100 %
    Shape category:
    elongated
    Remarks:
    Needle-like particles
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    0.018 μm
    Range:
    > 0.005 - < 0.02 μm
    Percentile:
    D50
    Typical value:
    0.03 μm
    Range:
    > 0.02 - < 0.04 μm
    Percentile:
    D90
    Typical value:
    0.047 μm
    Range:
    > 0.04 - < 0.06 μm
    Range of length:
    > 0.054 - < 0.214 μm
    Range of aspect ratio (:1):
    >= 3 - <= 4.8
    Fraction of constituent particles in the size range 1-100 nm:
    > 1 - < 100 %

    Crystallinity

    Structures
    Structure:
    amorphous
    Pure structure:
    no
    Range:
    > 5 - < 9 %

    Specific surface area

    Typical specific surface area:
    55.028 m²/g
    Range of specific surface area:
    > 50 - < 60 m²/g
    Typical volume specific surface area:
    340.73 m²/cm³

    Surface functionalisation / treatment

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


    Constituent 1
    Chemical structure
    Reference substance name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    EC Number:
    253-256-2
    EC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    CAS Number:
    36888-99-0
    Molecular formula:
    C16H9N5O6
    IUPAC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione
    State Form:
    solid: bulk


    Constituent 1
    Chemical structure
    Reference substance name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    EC Number:
    253-256-2
    EC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    CAS Number:
    36888-99-0
    Molecular formula:
    C16H9N5O6
    IUPAC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    EC Number:
    253-256-2
    EC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    CAS Number:
    36888-99-0
    Molecular formula:
    C16H9N5O6
    IUPAC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    EC Number:
    253-256-2
    EC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    CAS Number:
    36888-99-0
    Molecular formula:
    C16H9N5O6
    IUPAC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione


    Constituent 1
    Chemical structure
    Reference substance name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    EC Number:
    253-256-2
    EC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    CAS Number:
    36888-99-0
    Molecular formula:
    C16H9N5O6
    IUPAC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    EC Number:
    253-256-2
    EC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    CAS Number:
    36888-99-0
    Molecular formula:
    C16H9N5O6
    IUPAC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    EC Number:
    253-256-2
    EC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid
    CAS Number:
    36888-99-0
    Molecular formula:
    C16H9N5O6
    IUPAC Name:
    5,5'-(1H-isoindole-1,3(2H)-diylidene)dipyrimidine-2,4,6(1H,3H,5H)-trione

    Composition(s) generated upon use

    Other types of composition(s)