2-{4-{2-[4-(2-Benzoxazolyl)-phenyl]-vinyl}-phenyl}-5-methylbenzoxazole
Fluorescent Brightener KSN
CAS: 5242-49-9
Molecular Formula: C29H20N2O2
2-{4-{2-[4-(2-Benzoxazolyl)-phenyl]-vinyl}-phenyl}-5-methylbenzoxazole - Names and Identifiers
| Name | Fluorescent Brightener KSN |
| Synonyms | KSN FBA 368 Optical Brightener KSN OPTICAL BRIGHTENER 368 KSNFluorescent Brightener Fluorescent Brightener KSN FLUORESCENT BRIGHTENER-KSN Fluorescent Brightener KS-N Optical Brightening Agent KSN 4.4-bis(5-methyl-2-benzoxoazol)-ethylene 4-(Benzoxazol-2-yl)-4'-(5-methylbenzoxazol-2-yl)stilbene ethyl (2E,4E)-5-phenyl-2-[(phenylcarbonyl)amino]penta-2,4-dienoate 2-[4-[2-[4-(Benzoxazol-2-yl)phenyl]vinyl]phenyl]-5-methylbenzoxazol 2-{4-{2-[4-(2-Benzoxazolyl)-phenyl]-vinyl}-phenyl}-5-methylbenzoxazole 2-(4-{2-[4-(1,3-benzoxazol-2-yl)phenyl]ethenyl}phenyl)-5-methyl-1,3-benzoxazole 2-(4-{(E)-2-[4-(1,3-benzoxazol-2-yl)phenyl]ethenyl}phenyl)-5-methyl-1,3-benzoxazole |
| CAS | 5242-49-9 |
| EINECS | 226-044-2 |
| InChI | InChI=1/C29H20N2O2/c1-19-6-17-27-25(18-19)31-29(33-27)23-15-11-21(12-16-23)8-7-20-9-13-22(14-10-20)28-30-24-4-2-3-5-26(24)32-28/h2-18H,1H3/b8-7+ |
| InChIKey | SOTPOQQKAUOHRO-BQYQJAHWSA-N |
2-{4-{2-[4-(2-Benzoxazolyl)-phenyl]-vinyl}-phenyl}-5-methylbenzoxazole - Physico-chemical Properties
| Molecular Formula | C29H20N2O2 |
| Molar Mass | 428.48 |
| Density | 1.26 |
| Melting Point | >273°C (dec.) |
| Boling Point | 578.9±39.0 °C(Predicted) |
| Flash Point | 290.9°C |
| Solubility | DMSO (Very Slightly, Heated) |
| Vapor Presure | 8.56E-13mmHg at 25°C |
| Appearance | Solid |
| Color | Yellow |
| pKa | 2.65±0.10(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | 1.719 |
| Physical and Chemical Properties | Appearance: bright yellow powder. Structure type: stilbene-bis-benzimidazole-type compound. Melting Point: ≥ 295°C. solubility: insoluble in water, soluble in high boiling point organic solvents such as benzene trichloride |
| Use | Fluorescent whitening agent KSN and OB-1 have similar chemical structure, but the whitening effect of polyester fiber and plastic products is better than OB-1, and the compatibility with plastic is better than OB-1, very little amount can produce a very good whitening effect, which is less than OB-1. KSN not only has excellent high temperature resistance, but also has excellent sun resistance and weather resistance. Fluorescent whitening agent KSN is also suitable for polyamide, Polypropylene |
2-{4-{2-[4-(2-Benzoxazolyl)-phenyl]-vinyl}-phenyl}-5-methylbenzoxazole - Reference
| Reference Show more | 1. He Zhi Hua, Zuojun Feng, Xiong Ma Jian, Zhu Bijun. Determination of fluorescent whitening agents in pharmaceutical composite membranes by high performance liquid chromatography [J]. Journal of Pharmaceutical Analysis, 2020,40(09):1645-1652. |
2-{4-{2-[4-(2-Benzoxazolyl)-phenyl]-vinyl}-phenyl}-5-methylbenzoxazole - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| fluorescent whitening agent | fluorescent whitening agent KSN has very good whitening effect, enjoys the reputation of whitening king in China, and is often used for high-end plastics with high whiteness requirements. Appearance: yellow-green crystalline powder melting point: 269-271 ℃ volatile matter: ≤ 0.5% content: ≥ 98% fineness: greater than 100 mesh, insoluble in water, odorless, stable performance. The fluorescent whitening agent KSN is a benzoazole compound. It is a special upgrade product among many fluorescent whitening agents. It has blue and purple color and excellent light resistance. It is suitable for all plastics, especially in synthetic fibers. Has a strong whitening effect. At the same time, it can also be applied to whitening and brightening of color materials in coatings, paints, inks and other industries. Fluorescent whitening agent KSN has the characteristics of convenient application, minimum dosage and best effect. |
| performance and characteristics | 1, small dosage, high whitening strength, small dosage can produce very good whitening effect. 2. It has a wide range of applicable properties and is widely used in whitening of chemical fibers such as polyester and various plastics. 3. It has good compatibility with plastics, high temperature resistance and excellent sun resistance and weather resistance. |
| scope of application | 1, suitable for whitening polyester, polyamide, polyacrylonitrile and other fibers, silk and wool fabrics. 2. Widely used in film, injection molding and extrusion molding materials, suitable for all plastic processing. 3. It is very suitable for whitening of synthetic polymers at any processing stage, including polymerization stage. |
| usage | the fluorescent whitening agent KSN can be fully and evenly mixed with materials at 0.01-0.05% of the weight of plastic or polyester particles before molding and processing of various plastics or before polyester fiber wire drawing. Recommended dosage: 2-30g KSN whitening agent is added per 100kg of material. 1. the amount of transparent plastic added is 0.5~2g. 2. The addition amount of polyester fiber is 10~20g. |
| use | fluorescent whitening agent KSN has similar chemical structure to OB-1, but its whitening effect on polyester fiber and plastic products is better than that of OB-1, and its compatibility with plastic is better than that of OB-1. very little dosage can produce very good whitening effect, which is far from OB-1. KSN not only has excellent high temperature resistance, but also has excellent sun and weather resistance. The fluorescent whitening agent KSN is also suitable for polyamide, polypropylene used in all plastics, especially in synthetic fibers. It has a strong whitening effect, and can also be used for color whitening and brightening in paint, ink, paint and other industries |
Last Update：2024-04-09 21:54:55
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Multiple Specifications
Product Name: Fluorescent Brightener KS-N Request for quotationCAS: 5242-49-9
Tel: +86 19849939632
Email: 2470479589@qq.com
Mobile: +86 19849939632
QQ: 2470479589
Wechat: +86 19849939632
Product Name: Fluorescent Brightener KSN Request for quotation
CAS: 5242-49-9
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
CAS: 5242-49-9
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Spot supply
Product Name: Fluorescent Brightener KS-N Visit Supplier Webpage Request for quotationCAS: 5242-49-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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