36888-99-0

Basic information

• Product Name: Pigment Yellow 139
• Synonyms: pigment yellow 139;5,5'-(1H-isoindole-1,3(2H)-diylidene)dibarbituric acid;2,4,6(1H,3H,5H)-Pyrimidinetrione, 5,5-(1H-isoindole-1,3(2H)-diylidene)bis-;Pigment yellow 139 (C.I. 56298);1,3-Di(2,4,6-trioxohexahydro-5-pyrimidinylidene)isoindole;5-[3-(2,4,6-Trioxo-1,3-diazinan-5-ylidene)isoindol-1-ylidene]-1,3-diazinane-2,4,6-trione;Yellow L1820;1,3-Bis(2,4,6-trioxohexahydropyrimidin-5-ylidene)isoindoline
• CAS NO: 36888-99-0
• Molecular Formula: C16H9N5O6
• Molecular Weight: 367.27
• EINECS: 253-256-2
• Mol File: 36888-99-0.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• Density: 1.696 g/cm³
• Refractive Index: 1.698
• PKA: 5.56±0.20(Predicted)
• CAS DataBase Reference: Pigment Yellow 139(CAS DataBase Reference)
• NIST Chemistry Reference: Pigment Yellow 139(36888-99-0)
• EPA Substance Registry System: Pigment Yellow 139(36888-99-0)

Safety Data

• Hazardous Substances Data: 36888-99-0(Hazardous Substances Data)

Usage

Uses

Pigment Yellow 139 can be used as color composition for dye multimer, film, color filter, solid-state imaging element, and image display device.

Flammability and Explosibility

Notclassified

InChI:InChI=1/C16H9N5O6/c22-11-7(12(23)19-15(26)18-11)9-5-3-1-2-4-6(5)10(17-9)8-13(24)20-16(27)21-14(8)25/h1-4,17H,(H2,18,19,22,23,26)(H2,20,21,24,25,27)

Upstream product

• 160956-25-2 isoindole-1,3-diylidenediamine 
• 67-52-7 BARBITURIC ACID 
• 6330-25-2 N-methyl-2-cyanoacetamide 
• 91-15-6 phthalonitrile 
• 3468-11-9 1-imino-1H-isoindol-3-amine 

Relevant articles and documents

COMPOUND, COLORANT DISPERSED SOLUTION, PHOTOSENSITIVE RESIN COMPOSITION, PHOTOSENSITIVE MATERIAL, COLOR FILTER AND DISPLAY DEVICE

The present specification provides a compound represented by chemical formula 1. A colorant dispersion, a photosensitive resin composition, a photosensitive material, a color filter and a display device are provided.

ISOMETRIC ISOINDOLINE YELLOW PIGMENT

Pigment of formula wherein R1 is CONR4R5 or C(=NR6)NR7R8, R2, R3, R4 and R5 are each independently of the others H, C1-C5alkyl, or phenyl which is unsubstituted or substituted from 1 to 5 times by C1-C5alkyl or by halogen, R6 is phenyl which is unsubstituted or substituted from 1 to 4 times by C1-C5alkyl or by halogen, R7 is H or C1-C5alkyl, and R8 is a direct bond or a carbonyl bridge to R6, which pigment consists of primary particles the average aspect ratio of which is from 4 to 1, preferably from 3.5 to 1, especially from 3 to 1, and /or the ellipses equivalent to the contours of the primary particles on a two-dimensional electron microscopic image have an average numerical eccentricity ε of from 0 to 0.80, the numerical eccentricity ε being defined as (formula), wherein a is the semimajor axis and b is the semiminor axis of the equivalent ellipse. That pigment preferably has a narrow particle size distribution and is, as are analogous pigments, prepared by a novel process. The invention relates also to a process for the preparation of that pigment, wherein R1CH2CN or (formula) is dispersed in an acidic aqueous medium containing from 70 to 99 % by weight water, preferably in the presence of a dispersant, and is reacted with solid (formula).