
Product Name: Pigment Orange 13 (P.O. 13)
Chemical Name: 4,4′-[(3,3′-DICHLORO[1,1′-BIPHENYL]-4,4′-DIYL)BIS(AZO)]BIS[2,4-DIHYDRO-5-METHYL-2-PHENYL-3H-PYRAZOL-3-ONE]
Color Index: C.I. 21110
CAS: 3520-72-7 (High-Purity Industrial Grade) – Innovatively optimized with advanced crystal modification and azo coupling technology, featuring a unique warm orange hue with subtle yellow undertones, exceptional color vividness, and superior dispersion, tailored for high-end industrial applications.
Molecular formula: C32H24Cl2N8O2
Formula Weight: 623.49 g/mol – Unique naphthol-based molecular structure with dimethoxy groups enhances color saturation, solvent resistance, and thermal stability, outperforming conventional orange organic pigments in compatibility and long-term reliability.
Synonyms: Pigment Orange 13; P.O. 13; Naphthol Orange 13; C.I. Pigment Orange 12765; Permanent Orange 13; Warm Yellow-Undertone Orange Pigment; High-Vivid Orange Pigment; Eco-Safe Organic Orange Pigment
Application:
High-end solvent-based/aqueous printing inks, automotive coatings & touch-up paints, engineering plastics, textile printing, decorative colorants, and plastic packaging, compatible with diverse formulation systems and high-speed processing.
1.Product Description
Pigment Orange 13 (P.O. 13) is an innovative high-performance naphthol-based organic pigment, redefining warm orange coloration for modern industrial applications with its unique vivid hue and subtle yellow undertones—distinct from cool-toned orange pigments like P.O. 34. Unlike ordinary orange pigments that lack vibrancy, suffer from poor solvent stability, or fail to disperse evenly, our P.O. 13 features a proprietary crystal refinement process, delivering three client-centric advantages: a stunning warm yellow-undertone orange hue, exceptional solvent resistance, and seamless dispersion—solving manufacturers’ pain points of color bleeding, uneven color distribution, and high production waste.
Crafted with advanced low-temperature azo coupling technology, Pigment Orange 13 boasts a uniform platelet-shaped particle structure (0.16–0.21 μm) and optimized specific surface area (21–25 m²/g), ensuring seamless integration into solvent-based, aqueous, and plastic melt formulations, even in high-speed processing. Its distinct warm undertone sets it apart from conventional orange pigments, offering a bright, inviting color that elevates product aesthetics, while its optimized particle size reduces loading requirement by 17% compared to standard P.O. 13 variants—directly cutting raw material costs. Additionally, it is 100% compliant with REACH, RoHS standards and EINECS 222-530-3, non-toxic, heavy metal-free, and suitable for diverse high-end applications.
Engineered for long-term reliability, Pigment Orange 13 boasts Grade 6 lightfastness and thermal stability up to 195°C (10min tolerance) and 175°C (30min tolerance), retaining its vivid warm orange hue even after prolonged UV exposure and high-temperature processing. Its excellent solvent stability (resistant to alcohols, esters, xylene, and ketones) prevents color bleeding and migration, ensuring consistent color in end products. With broad compatibility and high tinting strength, it is a versatile one-stop solution for diverse industries, delivering consistent, eye-catching results that set your products apart—combining innovation, stability, and cost-efficiency in one high-performance warm orange pigment.
2.Product Specifications
| Product name | Pigment Orange 13 (P.O. 13) |
| Appearance | Fine, free-flowing warm yellow-undertone orange powder, platelet-shaped particles, no agglomeration, consistent tone. |
| CAS No. | 3520-72-7 |
| ENIECS | 222-530-3 |
| Solubility | Insoluble in water; excellent solvent stability, resistant to alcohols, esters, xylene and ketones. |
| Style | Organic Pigment |
| Tinting Strength | 100%±3 |
| Purity | ≥99% |
| Packing | 25kg/drum/bag/paper box |
| Melting Point | 322–332°C |
| Application | Printing inks, automotive coatings, plastics, textiles, decorative colorants. |
3.Product Application
Pigment Orange 13 is a versatile, high-value organic pigment, tailored to meet the specific needs of diverse industries with its unique warm yellow-undertone orange hue, high vividness, and exceptional stability. Below is its detailed application by industry, each section focused on client benefits and practical use cases:
3.1 Printing Inks
Pigment Orange 13 is a top choice for high-end solvent-based and aqueous printing inks, including offset, gravure, digital, and flexographic printing inks. Its excellent dispersion capability eliminates color bleeding and sedimentation, ensuring smooth ink flow even in high-speed printing. With high tinting strength, only 15% loading is needed to achieve standard color depth, significantly reducing ink formulation costs. The warm yellow-undertone orange hue delivers sharp, vibrant prints with excellent clarity, making it ideal for luxury packaging, brand logos, promotional materials, and food packaging labels, while its good lightfastness ensures long-lasting vibrancy under various conditions.
3.2 Automotive & Industrial Coatings
Perfect for automotive basecoats, touch-up paints, architectural coatings, and metal coatings, Pigment Orange 13 offers excellent compatibility with solvent-based and water-based coating systems. Its good flowability and color saturation allow for increased pigment concentration to enhance coverage without affecting gloss, making it ideal for automotive and industrial finishing. The warm orange adds a bright, inviting aesthetic to coatings, while its thermal stability and chemical resistance prevent fading, chalking, and corrosion—ensuring long-lasting color retention in harsh outdoor and industrial environments.
3.3 Plastics
Suitable for engineering plastics (PP, PE, PVC, ABS), Pigment Orange 13 features excellent compatibility and low migration. Its uniform platelet-shaped particle size ensures uniform color distribution during injection molding and extrusion, eliminating streaking or color unevenness. It performs well in both rigid and non-light-colored soft PVC coloring, avoiding color bleeding in most applications. Its high solvent stability prevents color migration in plastic processing, ensuring consistent color in end products like plastic parts, toys, decorative accessories, and packaging, while its low loading reduces formulation costs.
3.4 Textiles & Decorative Colorants
Applicable to water-based and solvent-based textile printing pastes for cotton, polyester, and blended fabrics, Pigment Orange 13 delivers excellent wash fastness and rub fastness, retaining its warm yellow-undertone orange hue even after repeated laundering. It is also suitable for decorative colorants (ceramic glazes, candle wax, and wall paints) and high-end art supplies, offering a blendable, vibrant tone that appeals to professional artists and hobbyists. Its eco-friendly formulation and good compatibility make it a reliable choice for diverse decorative and textile applications.
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