Description

Pigment Red 185 is a high-performance, synthetic organic pigment belonging to the azo chemical class. This compound is valued for its excellent color strength, good lightfastness, and strong heat stability, making it a reliable choice for demanding coloration applications. It is primarily used by manufacturers in the plastics, coatings, and printing ink industries seeking vibrant, durable red shades.

Application

• Plastics Coloring: For coloring polyolefins (PP, PE), PVC, engineering plastics, and synthetic fibers, offering good dispersion and heat resistance during processing.
• Industrial Coatings: Used in automotive finishes, coil coatings, and industrial paints where durability and weather resistance are critical.
• Printing Inks: Formulated into offset, gravure, and flexographic inks for packaging, publications, and decorative prints.
• Masterbatch Production: A key component in the manufacture of color concentrates and compounds for the plastics industry.
• Specialty Applications: Suitable for coloring elastomers, leather finishes, and other specialty materials requiring a stable red pigment.

Basic Information

Product Name	Pigment Red 185
CAS No.	61951-98-2
Molecular Formula	C24H15ClN6O6S
Molecular Weight	550.93 g/mol
Synonyms	C.I. Pigment Red 185; C.I. 12516; Pigment Red 185; Benzenesulfonamide, N-(5-chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulfonyl]-2-methoxyphenyl]azo]-3-hydroxy-2-naphthalenecarboxamide; Permanent Carmine FBB 02; Cromophtal Scarlet R; Hostaperm Scarlet GO; Irgazin Scarlet R; Novoperm Scarlet HF4C; Paliogen Scarlet 4550
EINECS	263-333-8

Quality Control

Our production of Pigment Red 185 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance. Key parameters such as color strength, hue, particle size distribution, and thermal stability are rigorously tested against established internal specifications. A Certificate of Analysis (COA) detailing these results is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials and sources of intense heat.

Specification

Item	Specification
Appearance	Red Powder
Color Strength	100 ± 5% (vs. Standard)
Hue	Conforms to Standard
Lightfastness	≥ 6-7 (ISO 105-B02)
Heat Stability	≥ 280°C
Oil Absorption	40 - 60 g/100g
Particle Size (D50)	0.2 - 0.5 μm
Moisture Content	≤ 2.0%
Water Soluble Matter	≤ 1.5%
pH Value (10% Aq. Slurry)	6.0 - 8.0

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.