Production
-
Optical Brightener CBS-X
-
Solvent Yellow 98
-
Optical Brightener DMA-X
-
Pigment blue B12
-
Solvent Red 135
-
Solvent blue 104
-
Optical Brightener 4BK
-
Optical Brightener CXT
-
Pigment yellow 17
-
Pigment yellow 83
-
Optical Brightener FP-127
-
Ultramarine blue
-
Solvent Blue 45
-
Pigment red 254
-
Pigment violet 23
-
Acid Orange 33
Optical Brightener ER-III
Product Name: Optical Brightener ER-III / Fluorescent Brightener 199:2
Chemical Name: 2,2′-(1,4-Phenylenedi-2,1-ethenediyl)bisbenzonitrile
Color Index: C.I. 199:2
CAS: 79026-03-2
Molecular Formula: C₂₄H₁₆N₂
Formula Weight: 332.40 g/mol
Synonyms: Fluorescent Brightener 199:2; FBA 199:2; Fluorescent Whitening Agent ER-III; 2,2′-Bis(2-cyanostyryl)benzene; Optical Brightening Agent ER-III;
2-[2-[4-[2-(3-Cyanophenyl)ethenyl]phenyl]ethenyl]benzonitrile
Application:
Polyester Fibers (Dacron), Acetate Fibers, Polyamide Fibers (Nylon), Polyester-Cotton Blends, Polyester-Wool Blends, Polyester-Linen Blends, Polyester-Silk Blends, PVC, Polystyrene, Synthetic Leather, Paints & Coatings
Description
marker
1.Product Description
Achieve Exceptional Whiteness with Optical Brightener ER-III – The Premium High-Temperature Brightener for Polyester and Blends.
Optical Brightener ER-III, internationally designated as Fluorescent Brightener 199:2 (C.I. 199:2), is a premium distyrylbenzene derivative engineered specifically for whitening polyester fibers and their blends at high processing temperatures . This sophisticated non-ionic brightener features a unique molecular structure with a 2-cyanostyryl configuration that delivers exceptional thermal stability and outstanding sublimation fastness .
What truly distinguishes ER-III from other brighteners in the ER series is its superior sublimation fastness. While ER-I and ER-II are designed for lower-temperature applications, ER-III maintains its whitening efficacy at elevated temperatures, making it the preferred choice for high-temperature fiber spinning, setting, and heat treatment processes . The compound absorbs invisible ultraviolet radiation and re-emits it as brilliant blue-violet visible light (bluish-violet fluorescence), effectively neutralizing the natural yellowish cast of polyester and synthetic fibers .
Key differentiators:
Superior Sublimation Fastness: Maintains whitening effect through high-temperature setting and heat treatment processes, ensuring durable whiteness in finished products .
High Thermal Stability: Withstands processing temperatures up to 280-300°C with excellent stability, suitable for demanding textile and plastic applications .
Excellent Lightfastness: Demonstrates outstanding resistance to UV exposure, maintaining whiteness through prolonged sunlight exposure.
High Purity Formulation: Available in ≥98% purity with consistent batch-to-batch performance .
Our Optical Brightener ER-III is manufactured under strict quality controls, offering consistent performance and compliance with international quality standards for textile applications.
2. Product Specifications (Technical Data Sheet)
| Property | Specification | Insight |
| Product Name | Optical Brightener ER-III (Fluorescent Brightener 199:2) | Premium high-temperature brightener for polyester |
| Appearance | Bright yellow to yellowish-green crystalline powder | Uniform, free-flowing powder |
| CAS No. | 79026-03-2 (primary); 13001-40-6 (related isomer) | Verified chemical registry number |
| EINECS/EC No. | 279-038-7 | Listed in European inventory |
| Molecular Formula | C₂₄H₁₆N₂ | Distyrylbenzene with 2-cyanostyryl groups |
| Formula Weight | 332.40 g/mol | |
| Solubility | Insoluble in water; soluble in most organic solvents (toluene, xylene, chlorobenzene, DMF) | Excellent organic solubility for polymer applications |
| Ionic Style | Non-ionic | Compatible with anionic and cationic systems |
| Fluorescence Color | Bluish-violet | Produces clean, bright white appearance |
| Melting Point | 276-283°C | Excellent thermal stability |
| Purity | ≥ 98% - 99% (HPLC) | High purity ensures consistent performance |
| Density | 1.187 g/cm³ | |
| Storage Conditions | Store in cool, dry, ventilated warehouse; avoid sunlight, moisture, and heat | Shelf life: 2-4 years under proper storage |
| Packing | 20-25 kg fiber drums / cardboard cartons with PE inner liner; 25 kg plastic drums for liquid formulations; custom sizes available | Secure, moisture-proof packaging |
| Application | Polyester fibers, acetate fibers, polyamide fibers, polyester-cotton blends, PVC, PS, synthetic leather, coatings | Versatile across multiple industries |
3.Product Application
Textile Industry – Primary Application:
Optical Brightener ER-III is the preferred whitening agent for polyester and synthetic fibers, particularly valued for its high sublimation fastness and excellent performance in high-temperature processes :
| Fiber Type | Application Method | Recommended Dosage | Processing Conditions |
| Polyester (PET) Fibers | High-temperature exhaust dyeing | 0.02-0.08% (o.w.f) | 120-130°C, 30-60 min, pH 4.5-5.5 |
| Polyester-Cotton Blends | Pad dyeing | 1.5-3.0 g/L | Two-dip two-pad → 100°C pre-drying → 180-190°C curing (40-30 sec) |
| Polyester-Wool Blends | Exhaust dyeing | 0.05-0.15% (o.w.f) | Suitable for blended protein/synthetic fibers |
| Polyester-Linen/Silk Blends | Exhaust dyeing | 0.05-0.15% (o.w.f) | Effective for natural/synthetic blends |
| Acetate Fibers | Exhaust dyeing | 0.05-0.1% (o.w.f) | Provides bright, clean whiteness |
| Polyamide (Nylon) Fibers | Exhaust dyeing | 0.05-0.1% (o.w.f) | Effective whitening for synthetic fibers |
Low-Temperature Absorption Process:
For applications requiring lower processing temperatures, a two-step process can be employed:
| Step | Conditions | Duration |
| Absorption | 50-60°C, pH 4.5-5.5, 0.3-0.7% (o.w.f) | 20-30 minutes |
| Fixing | 180-190°C (setting and baking) | 40-30 seconds |
Plastics & Synthetic Leather:
ER-III demonstrates outstanding whitening performance across various plastic applications:
PVC (Polyvinyl Chloride): Effective for both rigid and flexible PVC; dosage 0.01-0.05%.
Polystyrene (PS): Suitable for injection molding applications.
Synthetic Leather: Provides excellent whitening for artificial leather products .
Coatings & Paints:
ER-III is suitable for coating applications, providing excellent whitening effects in solvent-based systems for industrial and specialty coatings.
4.Storage
This product may be stored up to two years in a sealed container. Containers should be kept tightly closed when not in use and stored in a cool, dry place.
5.Packaging
Usually is 25Kg/drum or paper box or bag with inner double PE liner Or provide customized packaging according to customer requirements.
6.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.
Contact Us
Popular Related Products
Acid Yellow 36
Product Name: Acid Yellow 36 / Metanil Yellow Chemical Name: Sodium 3-[(4-anilinophenyl)diazenyl]benzenesulfonate Color Index: C.I. 13065 CAS: 587-98-4 Molecular Formula:C18H14N3NaO3S Formula Weight: 375.38 g/mol Synonyms: Metanil Yellow; C.I. Acid Yellow 36; Acid Leather Yellow R; Metanile Yellow O; 3-(4-Anilinophenylazo)benzenesulfonic acid sodium salt; Yellow No. 406; Amacid Yellow M； Acid Yellow 36, Soap Yellow, Golden Orange Yellow G, Meta-amine Yellow, Meta-aniline Yellow, Acid Soap Yellow, Acid Golden Yellow 2G, Acridine Yellow Application: Textiles (Wool, Silk, Nylon, Leather), Paper Dyeing, pH Indicators, Biological Staining (Histology), Research Applications, Industrial Colorants
Optical Brightener BBU
Product Name: Optical Brightener BBU / Fluorescent Brightener 220 Chemical Name: Tetrasodium 4,4′-bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]stilbene-2,2′-disulfonate Color Index: C.I. 220 CAS: 16470-24-9 Molecular Formula: C₄₀H₄₀N₁₂Na₄O₁₆S₄ Formula Weight: 1165.04 g/mol Synonyms: Fluorescent Brightener 220; FBA 220; Optical Brightening Agent BBU; Blankophor BBU; Leucophor U; C.I. 220; Phorwhite BBU Application: Textiles (Cotton, Viscose, Linen, Polyamide), Paper Manufacturing (Pulp, Coating, Surface Sizing), Detergents, Printing (Discharge Printing Paste)
Solvent Orange 105
Product Name: Solvent Orange 105 / Transparent Orange FR Chemical Name: 4-[N-(2-Cyanoethyl)-N-ethylamino]-4′-nitroazobenzene / 3-[Ethyl[4-[(4-nitrophenyl)azo]phenyl]amino]propanenitrile Color Index: C.I. 11227 CAS: 31482-56-1 Molecular Formula: C₁₇H₁₇N₅O₂ Formula Weight: 323.35 – 323.35 g/mol Synonyms: C.I. Solvent Orange 105; Disperse Orange 25; Transparent Orange FR; Transparent Orange 2R; 4-[N-(2-Cyanoethyl)-N-ethylamino]-4′-nitroazobenzene; Elbaplast Orange R; Waxoline Orange Rp Fw; Begacron Orange H-3R Application: Engineering Plastics (PS, ABS, PC, PMMA, PET, SAN, RPVC), Polyester Fibers, Printing Inks, Paints & Coatings, Fuels & Gasoline, Oils & Lubricants, Waxes & Candles, Rubber, Leather Finishes, Masterbatch
Pigment yellow 83
Product Name: Pigment Yellow 83 (P.Y. 83) Chemical Name: 2,2′-[(3,3′-dichlorobiphenyl-4,4′-diyl)di(E)diazene-2,1-diyl]bis[N-(4-chloro-2,5-dimethoxyphenyl)-3-oxobutanamide] Color Index: C.I. 21108 CAS: 5567-15-7 (High-Purity Industrial Grade) – Innovatively optimized with advanced azo coupling and crystal modification technology, featuring a unique bright red-undertone yellow hue, exceptional tinting strength, and superior lightfastness, tailored for high-end printing inks, automotive coatings, and plastic coloring applications. Molecular formula: C36H32Cl4N6O8 Formula Weight: 818.49 g/mol – Unique bis-azo molecular structure with dichloro and dimethoxy groups enhances color saturation, lightfastness, and solvent resistance, outperforming conventional yellow pigments (e.g., P.Y. 13) in tinting strength and migration resistance. Synonyms: Pigment Yellow 83; P.Y. 83; Permanent Yellow HR; Fast Brilliant Yellow HR; Red-Undertone Yellow Pigment; High-Tinting Yellow Pigment; Migration-Resistant Yellow Pigment Application: High-end solvent-based/aqueous printing inks, automotive OEM coatings, engineering plastics, textile printing, industrial paints, and decorative colorants, compatible with solvent-based, plastic melt, and partial aqueous formulation systems.
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
Pigment red 170 F3RK
Product Name: Pigment Red 170 F3RK (P.R. 170 F3RK) Chemical Name: 4-[[4-(Aminocarbonyl)phenyl]azo]-N-(2-ethoxyphenyl)-3-hydroxy-2-naphthalenecarboxamide Color Index: C.I. 12474 CAS: 2786-76-7 (High-Purity Industrial Grade) – Innovatively optimized with F3RK crystal modification technology, featuring a unique blue-shaded red hue, excellent solvent stability and high transparency, tailored for high-end coating and printing applications. Molecular formula: C26H22N4O4 Formula Weight: 454.48 g/mol – Unique naphthol-based molecular structure with amide groups enhances solvent resistance and color saturation, outperforming conventional red organic pigments in compatibility and stability[superscript:3]. Synonyms: Pigment Red 170 F3RK; P.R. 170 F3RK; Naphthol Red F3RK; C.I. Pigment Red 12474; Permanent Red 170 F3RK; Blue-Shaded Red Pigment; Transparent Red Pigment; High-Solvent-Stable Organic Pigment Application: High-end solvent-based/aqueous printing inks, automotive coatings & touch-up paints, engineering plastics, textile printing, and decorative colorants, compatible with diverse formulation systems and high-speed processing.
Solvent Yellow 93
Product Name: Solvent Yellow 93 / Transparent Yellow 3G Chemical Name: 4,4′-(E)-methylylidenebis(5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one) / (4E)-5-methyl-4-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)methylidene]-2-phenylpyrazol-3-one Color Index: C.I. 48160 CAS: 4702-90-3 Molecular Formula: C21H18N4O2 Formula Weight: 358.39 g/mol Synonyms: Transparent Yellow 3G; Macrolex Yellow 3G; Sandoplast Yellow 3G; Solvaperm Yellow 3G; Keyplast Yellow 3G; Oplas Yellow 140; Plast Yellow 1002; Thermoplast Yellow 104; Kayaset Yellow GN; Yellow 3G; C.I. 48160 Application: Engineering Plastics (PS, ABS, SAN, PMMA, PC, PET), Polyester Fibers, PVC (Rigid), Paints & Coatings, Printing Inks, Toners, Petroleum Products, Oils & Waxes
Solvent Blue 122
Product Name: Solvent Blue 122 / Transparent Blue 2RA Chemical Name: N-[4-[(4-Hydroxy-9,10-dioxo-9,10-dihydroanthracen-1-yl)amino]phenyl]acetamide Color Index: C.I. 61568 CAS: 67905-17-3 Molecular Formula: C22H16N2O4 Formula Weight: 372.37 – 372.4 g/mol Synonyms: Transparent Blue 2RA; Solvent Blue R; Solvent Blue RLS; Blue R; N-{4-[(4-hydroxy-9,10-dioxo-9,10-dihydroanthracen-1-yl)amino]phenyl}acetamide; Plast Blue 5005; Blue X3RP; Blue 2R Application: Engineering Plastics (PS, ABS, SAN, PMMA, PC, PET, PBT, PA6, PA66, Rigid PVC), Polyester Fibers (Dope Dyeing, Spin Dyeing), PET Bottle Grade Resins, Printing Inks, Wood Stains, Aluminum Foil & Hot Stamping Foils, Leather Finishes, Rubber, Gasoline & Oils, Lubricants, Waxes & Candles
Pigment red 53-1
Product Name: Pigment Red 53:1 (P.R. 53:1) Chemical Name: Barium bis[2-chloro-5-[(2-hydroxy-1-naphthyl)azo]toluene-4-sulphonate] Color Index: C.I. 15585:1 CAS: (High-Purity Industrial Grade) – Optimized with advanced diazotization, coupling and precision calcium salinization technology, featuring a unique bright yellowish red (vivid scarlet) hue, excellent solvent resistance, and good heat stability, tailored for printing inks, plastic coloring, industrial paints, and stationery, compliant with global industrial pigment safety standards. Molecular formula: C34H24BaCl2N4O8S2 Formula Weight: 888.939 g/mol – Unique azo-based calcium salt lake structure differentiates it from Pigment Red 48 series (strontium/barium salt); it has a more intense yellowish red hue than 48:1/48:2/48:3, superior solvent resistance, and better compatibility with water-based formulations, making it a preferred choice for high-gloss printing inks and water-based coatings. Synonyms: Pigment Red 53:1; P.R. 53:1; Lithol Red D; Calcium Lake Scarlet Pigment; Bright Yellowish Red Pigment; High-Solvent-Resistant Red Pigment; Water-Based Compatible Red Pigment Application: High-end solvent-based/water-based printing inks (packaging, labels, magazines), plastic coloring (PVC, PE, PP), industrial paints (water-based wood paints, metal protective paints), stationery (color pencils, crayons), and textile printing, applicable to high-gloss and water-based formulation requirements.
Optical Brightener ER-II
Product Name: Optical Brightener ER-II / Fluorescent Brightener 199:1 Chemical Name: 2-[2-[4-[2-(4-Cyanophenyl)ethenyl]phenyl]ethenyl]benzonitrile Color Index: C.I. 199:1 CAS: 13001-38-2 Molecular Formula: C₂₄H₁₆N₂ Formula Weight: 332.40 g/mol Synonyms: Fluorescent Brightener 199:1; FBA 199:1; 1-(2-Cyanostyryl)-4-(4-cyanostyryl)benzene; 2,2′-[benzene-1,4-diyldi(E)ethene-2,1-diyl]dibenzonitrile; Optical Brightening Agent ER-II; 4,4′-(1,4-Phenylenediethene-2,1-diyl)dibenzonitrile; ER-2 Application: Polyester Fibers (PET), Acetate Fibers, Polyamide Fibers (Nylon), Polyester-Cotton Blends, Polyester-Wool Blends, Polyester-Linen Blends, PVC, PS, Synthetic Leather, Coatings & Paints
Pigment yellow 17
Product Name: Pigment Yellow 17 Chemical Name: 2,2′-[(3,3′-dichlorobiphenyl-4,4′-diyl)di(E)diazene-2,1-diyl]bis[N-(2-methoxyphenyl)-3-oxobutanamide] Color Index: C.I. 21105 CAS: 4531-49-1 (High-Purity Industrial Grade) – Innovatively upgraded with low-temperature azo coupling & crystal modification tech, ensuring ultra-consistent color and instant dispersion, which saves production time and reduces waste for manufacturers. Molecular formula: C34H30Cl2N6O6 Formula Weight: 689.5446 g/mol – Built with a unique dichlorobiphenyl-bridged diarylide core, delivering richer gold shade and stronger stability than ordinary diarylide yellow pigments. Synonyms: Pigment Yellow 17; P.Y. 17; Diarylide Yellow 17; C.I. Pigment Yellow 21105; Permanent Yellow 17; Luminous Gold-Shade Yellow Pigment; Low-Loading Yellow Pigment; Eco-Safe Organic Yellow Pigment Application: High-end printing inks, automotive & industrial coatings, engineering plastics, food-contact packaging, textile printing, and decorative colorants (universally compatible with solvent/aqueous systems).
Acid Red 52
Product Name: Acid Red 52 / Sulforhodamine B Color Index: C.I. 45100 CAS: 3520-42-1 Molecular Formula:C27H29N2NaO7S2 Formula Weight: 580.65 g/mol Synonyms: Sulforhodamine B; Xylene Red B; Acid Rhodamine B; Lissamine Rhodamine; C.I. Acid Red 52; Brilliant Acid Rhodamine B; Food Red 106; Sanolin Rhodamine B; Water Red 27，Acid Red 3B; Acid Rose B; Acid Rose E-XB; Acid Peach B; Application: Textiles (Wool, Silk, Nylon), Cosmetics & Personal Care, Biological Staining & Research, Inkjet Inks, Stationery Products, Detergents & Cleaners, Fluorescent Pigments
Solvent Red 195
Product Name: Solvent Red 195 Chemical Name: CAS:164251-88-1/89106-94-5 Molucular Formula: C22H12N2O3 Formula Weight: 320.34 Synonyms: BB Red, Solvent BB Red,Polysynthren Red BB;Sandoplast Red BB;Solvaperm Red BB;Thermoplast Red 454;Thermoplast Red BS;Solvent Red 195 Application: Solvent Red 195 is yellowish red, and the light fastness reaches 8 grades. It can be used for coloring of plastics and various resins, and coloring of fibers before spinning.
Ultramarine blue
Product Name: Ultramarine Blue Chemical Name:Ultramarine Blue C.I.: 77007 CAS: 57455-37-5 EINECS: 309-928-3 Molucular Formula: Na6Al4Si6S4O20 Formula Weight: 994.500988 Synonyms: CAS 57455-37-5, CI 77007, pigment blue 29, blue ultramarine, Ultramarine, Oriental Blue, Permanent Blue, P.Blue 29 Application: It is commonly used as a colorant and optical brightener for plastics, rubber, inks, color painting, textiles, paper, cosmetics, detergents, cement and construction.
Pigment yellow 12
Product Name: Pigment Yellow 12 (P.Y. 12) Chemical Name: 2,2′-[(3,3′-dichloro[1′-biphenyl]-4,4′-diyl)bis(azo)]bis[3-oxo-N-phenylbutyramide] Color Index: C.I. 21090 CAS: 6358-85-6 (High-Purity Industrial Grade) – Innovatively optimized with precision disazo synthesis technology, presenting a bright, vivid lemon yellow hue that stands out in industrial coloring, featuring excellent light fastness (Grade 6-7) and good heat stability, outperforming traditional yellow pigments in color vividness, dispersion, and cost-effectiveness for mid-to-high-end industrial applications. Molecular formula: C32H26CI2N6O4 Formula Weight: 629.49 g/mol – Unique disazo organic structure, distinct from quinacridone (P.V. 23, P.R. 122) and monoazo (P.R. 112) pigments, balancing color vividness, durability, and cost-efficiency, providing reliable, high-performance yellow coloring solutions for industrial manufacturers. Synonyms: Pigment Yellow 12; P.Y. 12; Disazo Yellow Pigment; Lemon Yellow Pigment; Fast Yellow Pigment; Permanent Yellow Pigment; High-Purity Yellow Pigment; Industrial Yellow Pigment Application: Widely applied in solvent-based printing inks, industrial coatings, plastic coloring (rigid PVC, PP, PE), textile printing, and general stationery, suitable for products requiring bright yellow color, good fastness, and cost-effectiveness, compatible with solvent-based formulations and plastic melts.
Solvent Orange 60
Product Name: Solvent Orange 60 / Macrolex Orange 3G Chemical Name: 12H-Phthaloperin-12-one / Isoindolo[2,1-a]perimidin-12-one Color Index: C.I. 564100 CAS: 6925-69-5 Molecular Formula: C18H10N2O Formula Weight: 270.28 – 270.30 g/mol Synonyms: Macrolex Orange 3G; C.I. Solvent Orange 60; Solvent Orange 78; 12H-Phthaloperin-12-one; 10H-Perimidino[2,1-a]isoindol-10-one; Sandoplast Orange 3G; Oracet Orange G; Diaresin Orange HS; Transparent Orange 3G; Oil Orange 60; C.I. 564100; Disperse Orange 24 Application: Engineering Plastics (PS, ABS, PC, PMMA, PET, PBT, SAN, AS, Rigid PVC), Polyester & Nylon Fibers, Eyeglass Frames, Automotive Components, Consumer Electronics, Printing Inks, Paints & Coatings, Masterbatch
