31837-42-0

Basic information

• Product Name: Pigment Yellow 151
• Synonyms: 2-[[1-[[(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl]azo]benzoic acid;C.I. 13980;fast yellow h4g;Pigment Yellow 151;2-[2-OXO-1-[(2-OXO-1,3-DIHYDROBENZOIMIDAZOL-5-YL)CARBAMOYL]PROPYL]DIAZENYLBENZOIC ACID;Benzoic acid, 2-1-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)aminocarbonyl-2-oxopropylazo-;BENZIMIDAZOLONE YELLOS H4G;Benzimidazolone Yellow H4G(Pigment Yellow 151)
• CAS NO: 31837-42-0
• Molecular Formula: C₁₈H₁₅N₅O₅
• Molecular Weight: 381.34
• EINECS: 250-830-4
• Product Categories: Organics
• Mol File: 31837-42-0.mol

Chemical Properties

• Boiling Point: 546.6 °C at 760 mmHg
• Flash Point: 284.4 °C
• Appearance: /
• Density: 1.55 g/cm³
• Vapor Pressure: 8.84E-13mmHg at 25°C
• Refractive Index: 1.721
• Solubility: 210μg/L in organic solvents at 20 ℃
• PKA: 1.55±0.59(Predicted)
• Water Solubility: 17.8μg/L at 25℃
• CAS DataBase Reference: Pigment Yellow 151(CAS DataBase Reference)
• NIST Chemistry Reference: Pigment Yellow 151(31837-42-0)
• EPA Substance Registry System: Pigment Yellow 151(31837-42-0)

Safety Data

• Hazardous Substances Data: 31837-42-0(Hazardous Substances Data)

Usage

Uses

Used in Paint Industry:
Pigment Yellow 151 is used as a colorant for its excellent heat resistance, light fastness, and acid and alkali resistance, making it suitable for high-quality paint formulations.
Used in Plastics Industry:
Pigment Yellow 151 is used as a pigment in the plastics industry due to its stability and strong tinting strength, providing vibrant coloration for various plastic products.
Used in Printing Ink Industry:
Pigment Yellow 151 is used as a colorant in printing inks, offering good resistance properties and strong coloration for high-quality print outputs.
Used in Textile Industry:
Pigment Yellow 151 is used as a dye in the textile industry for its ability to provide consistent coloration and resistance to various conditions, enhancing the appearance and durability of textiles.
Used in Coatings Industry:
Pigment Yellow 151 is used as a colorant in coatings to provide long-lasting color and protection for various surfaces, thanks to its heat resistance and resistance to light, acids, and alkalis.

Flammability and Explosibility

Notclassified

TEST ITEMS

SPECIFICATION

LIGHT FASTNESS

7-8

ACID RESISTANCE

5

ALKALI RESISTANCE

5

FASTNESS TO BLEEDING

5

OIL ABSORPTION

40-45%

SPECIFIC SURFACE

30 m 2 /g

DENSITY

1.60 g/cm 3

RESIDUE ON 80 MESH

5.0% max

VOLATITE 105 °C

1.0% max

InChI:InChI=1/C18H15N5O5/c1-9(24)15(23-22-12-5-3-2-4-11(12)17(26)27)16(25)19-10-6-7-13-14(8-10)21-18(28)20-13/h2-8,15H,1H3,(H,19,25)(H,26,27)(H2,20,21,28)

Upstream product

• 4661-46-5 2-carboxybenzene diazonium chloride 
• 26576-46-5 5-Acetoacetyl-amino-benzimidazol-2-one 
• 118-92-3 anthranilic acid 

Relevant articles and documents

Nanoscale pigment particle composition and process for producing same

A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound that is an alkylated derivative of an aromatic acid; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.

Nanosized particles of benzimidazolone pigments

A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.