
Product Name: Pigment Red 112 (P.R. 112)
Chemical Name: 3-Hydroxy-N-(o-tolyl)-4-[(2, 5-trichlorophenyl)azo]naphthalene-2-carboxamide
Color Index: C.I. 12370
CAS: 6535-46-2 (High-Purity Industrial Grade) – Innovatively optimized with precision diazotization and coupling technology, ensuring a pure neutral red hue with no color deviation, ultra-high light fastness (Grade 7-8), and strong tinting strength, outperforming traditional azo red pigments in durability and compatibility for industrial applications.
Molecular formula: C24H16Cl3N3O2
Formula Weight: 485.76 g/mol – Unique monoazo organic structure, distinct from lake-type red pigments (e.g., P.R. 57:1, P.R. 48 series), enhancing weather resistance, paint compatibility, and color stability, providing cost-effective and efficient coloring solutions for industrial manufacturers.
Synonyms: Pigment Red 112; P.R. 112; Permanent Red FGR; Fast Red FGR; Neutral Red Pigment; High-Lightfastness Red Pigment; Monoazo Red Pigment; High-Purity Industrial Red Pigment; Fade-Resistant Red Pigment
Application:
Widely applied in solvent-based printing inks, industrial coatings, stationery coloring, textile printing, and rigid PVC coloring, suitable for high-fastness and high-gloss product requirements, compatible with solvent-based formulations and rigid PVC melts, and can be mixed with other pigments to expand the color spectrum.
1.Product Description
Pigment Red 112 (P.R. 112) is an innovative high-performance monoazo organic pigment, redefining high-fastness industrial coloring with its unique pure neutral red hue—setting it apart from lake-type red pigments (P.R. 57:1 with blue undertones, P.R. 48 series with warm red tones). Unlike ordinary red pigments that suffer from color deviation, poor light fastness, or difficult dispersion, our P.R. 112 features a proprietary precision diazotization and multi-stage purification process, delivering three client-centric advantages: a pure, vivid neutral red hue with no color deviation, ultra-high light fastness (Grade 7-8), and seamless integration into solvent-based formulations and rigid PVC melts—solving manufacturers’ pain points of uneven coloring, easy fading, and high raw material costs.
Crafted with advanced low-temperature precision diazotization and coupling technology, Pigment Red 112 boasts a uniform fine particle structure (specific surface area of 17 m²/g) that ensures excellent dispersion, eliminating agglomeration and sedimentation during production, greatly reducing process waste and improving coloring efficiency. Its 100% compliance with REACH, RoHS, and EINECS 229-440-3 standards (non-toxic, heavy metal-free, no harmful additives) adds an extra layer of value, making it suitable for high-end and consumer-facing industrial products. What truly differentiates it is its superior durability—outperforming traditional red pigments by 1-2 grades in light fastness, ensuring long-term color stability even under outdoor exposure.
Engineered for long-term reliability, P.R. 112 boasts Grade 7-8 light fastness, with full-color air-drying paint retaining stable color for more than 5 years under outdoor exposure, even when mixed with titanium dioxide for light color matching. It has good thermal stability (stable up to 170℃ for short-term processing), water resistance, oil resistance, and acid-alkali resistance (Grade 4), preventing color bleeding and fading in diverse industrial applications. With strong tinting strength, only 17% pigment is needed to prepare 1/1 standard color depth lead printing ink, significantly reducing raw material costs. It’s not just a red pigment—it’s a cost-effective, safety-compliant solution to elevate the aesthetics and durability of your industrial products, standing out in a competitive market.
2.Product Specifications
| Product name | Pigment Red 112 (P.R. 112) |
| Appearance | Fine, free-flowing bright neutral red powder, no agglomeration, good flowability and dispersion. |
| CAS No. | 6535-46-2 |
| ENIECS | 229-440-3 |
| Solubility | Insoluble in water and ethanol; excellent dispersion in solvent-based formulations and rigid PVC melts. |
| Style | Organic Pigment |
| Tinting Strength | 100%±5 |
| Purity | ≥99% |
| Packing | 25kg/drum/bag/paper box |
| Melting Point | 290℃ |
| Application | Solvent-based printing inks, industrial coatings, stationery, textile printing, rigid PVC coloring (not suitable for soft PVC). |
3.Product Application
Pigment Red 112 is a versatile, high-value monoazo organic pigment, tailored to meet the specific needs of industrial sectors with its pure neutral red hue, ultra-high light fastness, and strong tinting strength. Below is its detailed application by industry, each section focused on client benefits and practical use cases, with each paragraph not exceeding 500 words:
3.1 Solvent-Based Printing Inks
Pigment Red 112 is the top choice for high-end solvent-based printing inks, including lead printing, offset printing, gravure printing, and flexographic printing. Its excellent dispersion capability ensures smooth ink flow, eliminating sedimentation and clumping even in high-speed printing (up to 600m/min), reducing production downtime and waste. With strong tinting strength, only 17% loading is needed to achieve standard color depth, significantly cutting ink formulation costs. The pure neutral red hue delivers sharp, clear prints with excellent color clarity, making it ideal for luxury packaging, product labels, and magazine printing. Its Grade 7-8 lightfastness ensures prints retain their vibrancy for years, even under outdoor exposure or frequent handling, avoiding the need for reprinting due to fading.
3.2 Industrial Coatings
Perfect for industrial coatings, including air-drying paints, baking enamels, electrophoresis paints, and latex paints, Pigment Red 112 offers excellent compatibility with various solvent-based resin systems. Its uniform dispersion ensures even color distribution, creating a smooth, flawless finish without visible pigment particles. Its thermal stability up to 170℃ ensures consistent color during coating curing, while its acid-alkali resistance (Grade 4) prevents fading or discoloration from environmental pollutants and weak chemicals. It is ideal for high-grade automotive coatings, metal protective coatings, and interior/exterior decorative paints, delivering a premium neutral red finish that combines aesthetics and long-term durability.
3.3 Textile Printing
Applicable to solvent-based textile printing, especially for the stock solution coloring of elastic rayon and viscose fiber, Pigment Red 112 delivers excellent color fastness (light fastness up to Grade 7-8, wash fastness up to Grade 4). It retains its vivid neutral red hue even after repeated laundering and outdoor exposure, ensuring long-lasting color stability for textiles. During the 150-180℃ direct drying process, its color remains unchanged, ensuring consistent coloring quality. Note that it has poor dry cleaning resistance, so it is not suitable for textiles that require frequent dry cleaning. Its pure hue is popular among consumers, and it can be mixed with other pigments to create diverse red shades, enriching textile color options.
3.4 Stationery & Rigid PVC Coloring
In the stationery industry, Pigment Red 112 is suitable for coloring color pencils, crayons, and markers, with good color fastness, no fading or smudging, and vivid coloration that appeals to consumers. In the rigid PVC industry, it is ideal for the coloring of rigid PVC products and transparent PVC products—transparent products containing 0.1% pigment have a light fastness of Grade 8, with uniform and transparent color. It is not suitable for soft PVC coloring due to migration issues. With strong tinting strength and low loading, it reduces production costs for stationery and PVC products while ensuring high-quality, long-lasting coloration.
4.Our advantage:
1) Provide free samples for testing or comparing the effect difference and cost performance.
2) Fast response speed, customers' questions at any time will be responded to in two hours.
3) Fast delivery: the fastest delivery can be made on the same day.
4)Different packaging solutions: provide various packaging options according to customer requirements.
5)Technical guidance: provide improved whitening and coloring formulas and guidance according to customer production materials.
6) Sample retention or sample mailing before bulk delivery.
7) Providing certifications, such as Reach certification.
8) Different payment methods: TT LC, etc.
9) Providing door-to-door DDP service.
5.Packing information:
Usually is 25Kg/cardboard drum or paper box or bag with inner double PE liner Or provide customized packaging according to customer requirements.