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Acid Blue 9
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Optical Brightener KCB
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Solvent Red 111
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Pigment red 48-1
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FOOD GRADE TITANIUM DIOXIDE AMA98
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Optical Brightener CXT
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Solvent blue 35
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Solvent Blue 122
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Solvent Red 135
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Optical Brightener FP-127
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Rutile Titanium Dioxide
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Solvent Yellow 93
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Solvent Green 5
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Pigment orange 34
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Optical Brightener BA
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Solvent Red 207
Solvent Yellow 163
Product Name: Solvent Yellow 163 / Transparent Yellow 5RP
Chemical Name:
1,8-Bis(phenylthio)anthraquinone / 1,8-Bis(phenylsulfanyl)anthracene-9,10-dione
Color Index: C.I. 58440
CAS: 13676-91-0
Molecular Formula: C₂₆H₁₆O₂S₂
Formula Weight: 424.54 g/mol
Synonyms: Transparent Yellow 5RP; Oracet Yellow GHS; Oracet Yellow 180; Oplas Yellow 120; Plast Yellow 1006; 1,8-Di(phenylthio)anthraquinone; Yellow GHS; Morplas Yellow GS; Teratop Yellow HL-G; C.I. Solvent Yellow 163
Application:
Engineering Plastics (PS, ABS, PC, PMMA, PET, SAN), Polyester Fibers, Rigid PVC, Paints & Coatings, Printing Inks, Industrial Colorants
Description
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1.Product Description
Achieve Brilliant, Heat-Stable Yellow Coloration with Solvent Yellow 163 – The Premium Anthraquinone Dye for Engineering Plastics.
Solvent Yellow 163, designated as C.I. 58440, is a high-performance anthraquinone-based solvent dye renowned for its exceptional heat resistance, outstanding lightfastness, and brilliant reddish-yellow shade . This sophisticated dye features a unique 1,8-bis(phenylthio)anthraquinone molecular structure that delivers superior thermal stability and excellent solubility in organic solvents and polymer matrices.
What distinguishes Solvent Yellow 163 from conventional solvent dyes is its extraordinary combination of heat resistance and lightfastness. With a melting point of 185-193°C and heat resistance up to 350°C in polycarbonate (PC) , this dye maintains its vibrant color through demanding injection molding, extrusion, and fiber spinning processes . Its lightfastness rating of 7-8 (on an 8-point scale) makes it one of the most durable yellow colorants available for outdoor and long-term applications .
Key differentiators:
Anthraquinone Chemistry: Provides superior thermal stability and lightfastness compared to azo-based alternatives .
Exceptional Heat Resistance: Withstands processing temperatures up to 350°C in PC, 300°C in PS/ABS, and 290°C in PET .
Outstanding Lightfastness: Rated 7-8 (highest grade), ideal for outdoor and long-life applications .
Reddish-Yellow Shade: Delivers a clean, transparent reddish-yellow hue with excellent color strength and brilliance .
Broad Polymer Compatibility: Suitable for PS, ABS, PC, PMMA, PET, SAN, and rigid PVC .
Our Solvent Yellow 163 is manufactured under strict quality controls with ≥98.5% purity , ensuring consistent batch-to-batch performance, low ash content (≤0.2%), and compliance with international safety standards including RoHS and EN71-3 .
2.Product Specifications (Technical Data Sheet)
| Property | Specification | Insight |
| Product Name | Solvent Yellow 163 (C.I. 58440) | Premium anthraquinone dye for engineering plastics |
| Appearance | Yellow to reddish-yellow uniform powder | Free-flowing, fine powder |
| CAS No. | 13676-91-0 | Verified chemical registry number |
| EINECS/EC No. | 237-167-6 | Listed in European inventory |
| Molecular Formula | C₂₆H₁₆O₂S₂ | Anthraquinone derivative with phenylthio groups |
| Formula Weight | 424.54 g/mol | Higher molecular weight ensures good migration resistance |
| Solubility | Insoluble in water; soluble in toluene (50g/L), acetone (10g/L), ethyl acetate (20g/L), xylene (6.2g/L) | Excellent organic solubility for polymer applications |
| Style | Solvent Dye / Anthraquinone | Non-ionic, heat-stable colorant |
| Color Shade | Reddish-yellow | Transparent, brilliant yellow with red undertone |
| Tinting Strength | 100 ± 3% (vs. standard) | High color strength with minimal dosage |
| Purity | ≥ 98.5% - 99.0% (HPLC) | High purity ensures consistent performance |
| Melting Point | 185-193°C | Excellent thermal stability for processing |
| Heat Resistance (PC) | 350°C | Exceptional stability in high-temperature polymers |
| Heat Resistance (PET) | 290°C | Suitable for polyester processing |
| Heat Resistance (PS/ABS) | 300°C | Excellent for styrenic plastics |
| Lightfastness | 7-8 (1-8 scale) | Outstanding UV resistance, ideal for outdoor use |
| Migration Resistance | Grade 5 (excellent) | Non-migrating in most polymer systems |
| Moisture Content | ≤ 0.5% | Low moisture ensures stability |
| Ash Content | ≤ 0.2% | High purity with minimal inorganic residues |
| Bulk Density | 0.30-0.64 kg/L | Good handling characteristics |
| Storage Conditions | Store in cool, dry, ventilated warehouse; avoid sunlight and moisture | Shelf life: 5 years under proper storage |
| Packing | 25 kg fiber drums / cardboard cartons with PE inner liner; custom sizes available | Secure, moisture-proof packaging |
| Application | PS, ABS, PC, PMMA, PET, SAN, PA, PVC, coatings, inks | Versatile across multiple industries |
3.Product Application
Engineering Plastics & Thermoplastics – Primary Application:
Solvent Yellow 163 is the preferred colorant for high-performance engineering plastics, delivering exceptional heat stability and brilliant transparent coloration across a wide range of polymers :
| Polymer Substrate | Recommended Dosage | Processing Temperature | Performance Notes |
| Polystyrene (PS) | 0.05-0.18% + 0-2% TiO₂ | 260-300°C | Excellent transparency and heat stability |
| ABS | 0.09-0.36% + 0-4% TiO₂ | 300°C | Outstanding color development |
| Polycarbonate (PC) | 0.09% + 0-1% TiO₂ | 350°C | Maximum heat resistance |
| PMMA (Acrylic) | 0.10% + 0-1% TiO₂ | 280°C | Excellent clarity and weatherability |
| PET (Polyester) | 0.07% + 0-1% TiO₂ | 290°C | Suitable for fibers and bottles |
| SAN | Recommended | — | Good compatibility |
| Rigid PVC | Recommended | — | Heat stability suitable for rigid applications |
Polyester Fibers:
Solvent Yellow 163 is widely used in polyester fiber (PET) coloration for:
Dope Dyeing: Added during fiber spinning for permanent, wash-fast coloration.
Excellent Light fastness: Rated 8 for PET, ensuring long-lasting color in textiles .
Heat Resistance: Maintains stability through fiber processing at 290°C .
Paints, Coatings & Printing Inks:
Solvent Yellow 163 is suitable for industrial coatings and printing ink applications:
Industrial Coatings: Provides transparent reddish-yellow shades with excellent durability.
Printing Inks: Used in solvent-based ink systems for packaging and specialty printing.
Good Solubility: Soluble in toluene, xylene, and other organic solvents.
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 certificationes, such as Reach certification.
8) Different payment methods: TT LC, etc.
9) Providing door-to-door DDP service.
5.Packing information:
Usually is 25Kg/drum or paper box or bag with inner double PE liner Or provide customized packaging according to customer requirements.
Contact Us
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