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Names | |
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Preferred IUPAC name
5,5′-(1H-Isoindole-1,3(2H)-diylidene)di(1,3-diazinane-2,4,6-trione) | |
Other names
Lithol, Fast Yellow 1840
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Identifiers | |
3D model (
JSmol)
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ChemSpider | |
ECHA InfoCard | 100.048.399 |
EC Number |
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PubChem
CID
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UNII | |
CompTox Dashboard (
EPA)
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Properties | |
C16H9N5O6 | |
Appearance | orange solid |
Density | 1.742 g/cm3 |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Pigment yellow 139 is an organic compound that is used as a yellow-orange pigment. It is classified as a derivative of isoindoline. This yellow-orange solid is virtually insoluble in most solvents. [1]
It is prepared by addition of ammonia to phthalonitrile to give diiminoisoindole, which in turn condenses with barbituric acid. [2]
![]() | |
Names | |
---|---|
Preferred IUPAC name
5,5′-(1H-Isoindole-1,3(2H)-diylidene)di(1,3-diazinane-2,4,6-trione) | |
Other names
Lithol, Fast Yellow 1840
| |
Identifiers | |
3D model (
JSmol)
|
|
ChemSpider | |
ECHA InfoCard | 100.048.399 |
EC Number |
|
PubChem
CID
|
|
UNII | |
CompTox Dashboard (
EPA)
|
|
| |
| |
Properties | |
C16H9N5O6 | |
Appearance | orange solid |
Density | 1.742 g/cm3 |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Pigment yellow 139 is an organic compound that is used as a yellow-orange pigment. It is classified as a derivative of isoindoline. This yellow-orange solid is virtually insoluble in most solvents. [1]
It is prepared by addition of ammonia to phthalonitrile to give diiminoisoindole, which in turn condenses with barbituric acid. [2]