Fluorescent Brightener 393
Fluorescent Brightener 393
CAS: 1533-45-5
Molecular Formula: C28H18N2O2
Fluorescent Brightener 393 - Names and Identifiers
| Name | Fluorescent Brightener 393 |
| Synonyms | OB-C FBA393 FBA 393 C.I. 393 Optical Brightener OB-1 Fluorescent Brightener 393 Fluorescent Brightener OB-1 ptical Brightening Agent OB-1 Optical Brightening Agent OB-1 Fluorescent whtening agent OB-1 4,4'-BIS(2-BENZOXAZOLYL)STILBENE Fluorescent Whitening Agent OB-1 4,4'-bis(benzoxazol-2-yl)stilbene 2,2'-(4.4'-diphenol vinyl)di-henzoxazol 2,2'-(vinylenedi-p-phenylene)bisbenzoxazole 1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene Fluorescent Brightener OB-1 C.I. 393 2,2'-(1,2-ethenediyldi-4,1-phenylene)bis-benzoxazol 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole 2,2'-(1,2-ETHENEDIYLDI-4,1-PHENYLENE)BISBENZOXAZOLE 2,2'-(ethene-1,2-diyldibenzene-4,1-diyl)bis(1,3-benzoxazole) 2,2'-[(E)-ethene-1,2-diyldibenzene-4,1-diyl]bis(1,3-benzoxazole) |
| CAS | 1533-45-5 |
| EINECS | 216-245-3 |
| InChI | InChI=1/C28H18N2O2/c1-3-7-25-23(5-1)29-27(31-25)21-15-11-19(12-16-21)9-10-20-13-17-22(18-14-20)28-30-24-6-2-4-8-26(24)32-28/h1-18H/b10-9+ |
| InChIKey | ORACIQIJMCYPHQ-KTKRTIGZSA-N |
Fluorescent Brightener 393 - Physico-chemical Properties
| Molecular Formula | C28H18N2O2 |
| Molar Mass | 414.45 |
| Density | 1.2151 (rough estimate) |
| Melting Point | >300°C(lit.) |
| Boling Point | 533.34°C (rough estimate) |
| Flash Point | 285.1°C |
| Water Solubility | 10μg/L at 25℃ |
| Solubility | DMSO (Slightly, Heated) |
| Vapor Presure | 0Pa at 25℃ |
| Appearance | Powder |
| Color | Yellow |
| pKa | 1.45±0.10(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Refractive Index | 1.5800 (estimate) |
| MDL | MFCD00022846 |
| Physical and Chemical Properties | Appearance: bright yellow crystalline powder Melting Point: 357-360 ℃ purity: ≥ 98.50% maximum UV absorption wavelength: 374nm maximum UV absorption wavelength: 434nm |
| Use | Used for polyester solution whitening, especially for the whitening of polyester fiber and polyester and cotton and other blended fabric whitening, can also be used for whitening of plastic products |
Fluorescent Brightener 393 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 1 |
| HS Code | 29349990 |
Fluorescent Brightener 393 - Upstream Downstream Industry
| Raw Materials | Diethyl phosphite |
Fluorescent Brightener 393 - Reference
| Reference Show more | 1. He Zhihua, Zuo Junfeng, Xiong Majian, Zhu Bijun. Determination of Fluorescent Whitening Agents in Pharmaceutical Composite Films by High Performance Liquid Chromatography [J]. Journal of Drug Analysis, 2020,40(09):1645-1652. |
Fluorescent Brightener 393 - Reference Information
| LogP | 5.499 at 25℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| main uses | fluorescent whitening agent OB-1 is a new variety developed abroad and is suitable for whitening and brightening of PE, PVC, ABS, PC and other plastics. Low dosage, strong adaptability and good dispersion. It can be added during post-processing or polymerization, and the whiten has high whiteness and excellent heat and weather resistance. OB-1 can also be made into slurry for whitening textiles. |
| fluorescent whitening agent | fluorescent whitening agent, also known as optical whitening agent. Commonly known as white fluorescent dye (f1uorescent whitening dye). A type of organic compound that can absorb ultraviolet light and emit blue or blue-purple visible light. Many industrial products, such as textiles, paper, plastics, etc. often have a visually undesirable yellow hue. Using the principle of blue and yellow complementary colors, adding fluorescent whitening agent treatment can eliminate yellow and make the treated matter appear white and bright. |
| application | is used for whitening polyester stock solution, especially suitable for whitening polyester fiber and polyester, cotton and other blended fabrics, and can also be used for whitening plastic products fluorescent whitening agent OB-1 |
Last Update：2024-04-09 19:05:10
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Tel: 609-228-6898
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Product Name: Fluorescent Brightener OB-1 Visit Supplier Webpage Request for quotationCAS: 1533-45-5
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Product Name: Fluorescent Brightener 393 Request for quotation
CAS: 1533-45-5
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Mobile: 0086 189 4982 3763
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CAS: 1533-45-5
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Raw Materials for Fluorescent Brightener 393