51920-12-8

Basic information

• Product Name: Pigment Red HF4C
• Synonyms: pigment red 185;pigment red hf4c;N-(2,3-DIHYDRO-2-OXO-1H-BENZIMIDAZOL-5-YL)-3-HYDROXY-4-2-METHOXY-5-METHYL-4-(METHYLAMINO)SULPHONYLPHENYLAZONAPHTHALENE-2-CARBOXAMIDE;N-[(2,3-Dihydro-2-oxo-1H-benzimidazol)-5-yl]-3-hydroxy-4-[[2-methoxy-5-methyl-4-[(methylamino)sulfonyl]phenyl]azo]-2-naphthalenecarboxamide;Permanent Carmine HF-4C;2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-(2-(2-methoxy-5-methyl-4-((methylamino)sulfonyl)phenyl)diazenyl)-;Einecs 257-515-0;3-Dihydro-2-oxo-1H-benziMidazol-5-yl)-3-hydroxy-4-[[2-Methoxy-5-Methyl-4-[(MethylaMino)sulphonyl]phenyl]azo]naphthalene-2-carboxaMide
• CAS NO: 51920-12-8
• Molecular Formula: C27H24N6O6S
• Molecular Weight: 560.589
• EINECS: 257-515-0
• Mol File: 51920-12-8.mol
• Article Data: 0

Chemical Properties

• Melting Point: 335-345 ºC
• Appearance: /
• Density: 1.3-1.4
• Refractive Index: 1.722
• PKA: 10.63±0.50(Predicted)
• Water Solubility: 3.4μg/L at 26℃
• CAS DataBase Reference: Pigment Red HF4C(CAS DataBase Reference)
• NIST Chemistry Reference: Pigment Red HF4C(51920-12-8)
• EPA Substance Registry System: Pigment Red HF4C(51920-12-8)

Safety Data

• Hazardous Substances Data: 51920-12-8(Hazardous Substances Data)

Usage

Description

Pigment Red HF4C, also known as Pigment Red 185, is an organic pigment characterized by its red powder appearance. It exhibits properties such as heat resistance of at least 300°C, light fastness rated 7-8, and moderate resistance to acids and alkalis, both rated 5. Additionally, it has a fastness to bleeding rating of 5, oil absorption between 40-50%, a specific surface area of 26 m2/g, a density of 1.40 g/cm3, and a residue on 80 mesh of maximum 5.0%. The pigment also has a water solubility of maximum 1.0% and a volatilite of 1.0% at 105 °C. It is known for its tinting strength, which ranges from 100-105%.

Uses

Used in Artist's Paints:
Pigment Red HF4C is used as a colorant in the production of artist's paints, providing a vibrant red hue and offering properties such as heat resistance, light fastness, and resistance to acids and alkalis. These characteristics make it a suitable choice for use in paints that require long-lasting color and stability.
Used in Industrial Applications:
Pigment Red HF4C is also utilized in various industrial applications, such as in the manufacturing of plastics, coatings, inks, and textiles, where its properties of heat resistance, light fastness, and resistance to acids and alkalis are advantageous. The pigment's oil absorption and specific surface area contribute to its performance in these applications, ensuring consistent color and improved product quality.

Flammability and Explosibility

Notclassified

TEST ITEMS

SPECIFICATION

HEAT RESISTANCE

300 °C min

LIGHT FASTNESS

7-8

ACID RESISTANCE

5

ALKALI RESISTANCE

5

FASTNESS TO BLEEDING

5

OIL ABSORPTION

40-50%

SPECIFIC SURFACE

26m 2 /g

DENSITY

1.40 g/cm 3

RESIDUE ON 80 MESH

5.0% max

VOLATITE 105 °C

1.0% max

InChI:InChI=1/C27H24N6O6S/c1-14-10-21(22(39-3)13-23(14)40(37,38)28-2)32-33-24-17-7-5-4-6-15(17)11-18(25(24)34)26(35)29-16-8-9-19-20(12-16)31-27(36)30-19/h4-13,28,32H,1-3H3,(H,29,35)(H2,30,31,36)/b33-24-