![CAS No 143824-78-6 ((2S)-2-(9H-FLUOREN-9-YLMETHOXYCARBONYLAMINO)-3-[1-[ (2-METHYLPROPAN-2-YL)Oxycarbonyl]Indol-3-Yl]Propanoic Acid Pharmaceutical Intermediates](https://ecdn6.globalso.com/upload/p/2209/image_other/2025-11/143824-78-6-structural-formula_thumbW360.jpg)
Optical Brightener EBF-L Go...
Product name
Optical Brightener EBF-L
Ingredients
2,5-bis-(benzoxazol-2-)thiophene
Properties
. Apperance：yellow lightly liquid
. Ion： non-ionic
. PH value(10g/l)：6.0～8.0
Characteristics
. Good fasteness to sunlight.
. Good whiteness in polyester fiber or fabric, with bluish-violet white shade.
. ZDHC V3.1 Level 1 Certification
Application
Suitable in the polyester fiber or used in making commercialized Brightener-EB,and used also in various polyolefing plastics,ABS engineering plastics and organic glass to make their color brighter.
High Quality Optical Bright...
Our optical brightener is a versatile, high-performance additive designed to enhance the brightness and whiteness of a wide range of materials. With over 20 years of expertise in optical brightener production, we’ve refined our formulations to deliver outstanding results across textiles, paper, plastics, detergents, paints, and more. Known for exceptional performance, reliability, and adaptability, our products are the perfect choice for industries seeking to elevate the visual appeal of their offerings.
Oba Di-Sulphonic For Paper ...
Main composition：
Stilbene derivative
Technical index：
Appearance：Amber transparent liquid
PH Value：8.5~10.5
Density：1.1~1.2g/cm3
Viscosity：≤200mpas
Ionic character：anion
Property:
- Convenient in application, easily soluble, diluted with water.
- Good resistance to alkali,perborate
Application Methods：
Addition pulp: usual dosage : 0.1~1.5% based on the weight of bone dry cellulose.
For actual application, the process should be adjusted according to correspondent sample-test
Packaging and Storage：
Packaging with 50kg、230kg or 1000kg IBC barrels,or special Packagings according to customers, store at the room temperature
Optical Brightener CL-L C.I...
| Product name | Optical Brightener CL-L |
| C.I.No. | 191 |
| Appearance | Yellow liquid |
| Ionicity | Anionic |
| Shade | Nautral |
| Performance |
1.Sure for Nylon (Polyamide), good fastness 2.Light fastness is more than 5 grade 3.Good solubility in hypochlorous, seawater, heat resistance |
| Application process | 1.Nylon fibre by Exhausting process Method (A): bleaching by sodium hydrosulfite CL-L 0.5-1.5% o.w.f Detergent agent 0.5-1.0g/L sodium hydrosulfite: 2-3g/L PH: 4-6 (adjust by glacial acetic acid) Temperature :80-130 ℃ 20-30 min. Method (B): leaching by sodium hypochlorite CL-L 0.5-1.5% o.w.f Detergent agent 0.5-1.0g/L sodium nitrate: 2-3g/L sodium hypochlorite: 3-8g/L Complexing Agent: 0.5 – 1.0g/L Temperature :90 ℃ 30-40 min. 2.Nylon fibre by Padding process CL-L 8-30g/L Levelling agent: 1-2g/L Fixing agent: 5-10g/L Temperature : 80-130 ℃ 20-30 min. ration: 80-100%, Parch at ℃105 Packaging: Packaged in plastic drums, 25kg each |
| Packaging | Packaged in plastic drums, 25kg each |
Optical Brightener CBS-X C....
| Main component |  |
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| C.I. No. | 351 | ||||||||||||||
| CAS No. | 27344-41-8 | ||||||||||||||
| Molecular mass | 562.56 | ||||||||||||||
| Formula | C28H20O6S2.2Na | ||||||||||||||
| Technical index |
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| Application | Can be used as brightener for detergent, cotton, linen, silk, polyamide fiber, wool and paper. It can be added to any process of any type of detergent. |
Optical Brightener CBS-P Us...
Product name: Optical Brightener CBS-P
Structural formula: 
Chemical Name: 4,4'-bis(2-sodium sulfonate styryl) biphenyl
C.I. No.: 351
| Appearance | Green- yellow granule |
| Ionic Character | Nonionic |
| Solubility | 40g/l at 25°C |
| E-value | 1105-1181 |
| Moisture Content | ≤ 5.0% |
| Impurity | Null (Water Solution) |
| Odour | Ammoniacal odour free |
Optical Brightening Agent C...
Product name: Optical Brightening Agent CBS-L
Structural formula: 
C.I. No.: 351
CAS No.: 27344-41-8
Molecular mass: 562.56
Formula: C28H20O6S2Na2
| Appearance | Greenish Liquid |
| Ionic character | Anion |
| Main content | 20±1% |
| E Value | 250±10 |
| Brightness CIE(Comparing with standard) | ± 1.5 |
| pH Value（1% solution） | 6.5~7.5 |
| Density(20℃±0. 1℃) | 1. 11~ 1. 13g/cm3 |
Optical Brightener Cbs-E fo...
Product name:Optical Brightener CBS-E
Structural formula:
Chemical Name: 4,4'-bis(2-sodium sulfonate styryl) biphenyl
C.I. No.:351
CAS No.:27344-41-8
Molecular Mass:562.56
Formula:C28 H20O6S2 Na2
Technical index:
| Appearance | Green- yellow granule |
| Ionic Character | Nonionic |
| Solubility | 40g/l at 25°C |
| E-value | 1105-1181 |
| Moisture Content | ≤ 5.0% |
| Impurity | Null (Water Solution) |
| Odour | Ammoniacal odour free |
Optical Brighteners-Add Shi...
Optical Brightener BA for cotton and paper：
| Product name | Optical Brightener BA |
| Other name | Fluorescent Brightener 113 |
| CAS NO | 4193-55-9 |
| C.I.NUMBER | 113 |
| Chemical name | Stilbene bistriazine derivative |
| Formula | C40H42 N12O10 S2 Na |
Specification:
| Item | Specification |
| Appearance | straw yellow uniform powder |
| Stength | 100 (Highest 145%) |
| Water content, %≤ | 5 |
| Insoluble matter in water, %≤ | 0.5 |
| Fineness (180um residue) , %≤ | 10 |
PI Monomer
| BAPB | 13080-85-8 |  |
| CBDA | 4415-87-6 |  |
| CFDA | 107934-68-9 |  |
| DMCBDA | 137820-87-2 |  |
| FDA | 15499-84-0 |  |
| MCTC |  |
|
| mTD | 84-67-3 |  |
| ODA | 101-80-4 |  |
| 2,4,6-Trimethyl-m-phenylenediamine | 3102-70-3 |  |
| 2716984-43-7 |  |
Photoresist Monomer VPBO
| Photoresist Monomer | VPBO | 95418-58-9 |  |
Photoresist monomer VPBO, CAS number 95418-58-9, is a specific compound used in photoresist formulations. This monomer is known for its role in enhancing the performance characteristics of photoresist materials, particularly resolution, sensitivity and etch resistance.
Chemical Information:
Chemical Name: 4-Vinylphenyl-4-benzoyloxybenzoate
CAS Number: 95418-58-9
Molecular formula: C22H18O3
Molecular Weight: 330.38 g/mol
Vinylene Carbonate (VC)
Vinylene carbonate (VC), with Chemical Abstracts Service (CAS) number 872-36-6, is a widely used additive in lithium-ion batteries. It plays a vital role in improving the performance and longevity of these batteries.
Chemical structure and properties:
Chemical formula: C3H2O3
Molecular weight: 86.05 g/mol
Appearance: Usually colorless to light yellow liquid.
Boiling Point: Approximately 162°C (324°F)
Density: Approximately 1.33 g/cm3
Functional Monomer
| CHDA | 1076-97-7 |  |
| HEMA | 1204-10-0 |  |
| HEMA-P | 97344-49-5 |  |
| 128481-73-2 |  |
Promote Health with Antioxi...
| Product name | Antioxidant 168 |
| Chemical name | Butylphenyl, phosphite, Tris-(2, 4-di-tert-butylphenyl)phosphite Tri (2, 4-ditert-butylphenyl) phosphite |
| Formula | C42H63O3P |
| Molecular weight | 646.94 |
| CAS No. | 31570-04-4 |
| Physical and chemical properties | Soluble in benzene, chloroform, slightly soluble in ethanol, acetone, insoluble in water. |
Promote Health with Antioxi...
| Product name | Antioxidant 168 |
| Chemical name | Butylphenyl, phosphite, Tris-(2, 4-di-tert-butylphenyl)phosphite Tri (2, 4-ditert-butylphenyl) phosphite |
| Formula | C42H63O3P |
| Molecular weight | 646.94 |
| CAS No. | 31570-04-4 |
| Physical and chemical properties | Soluble in benzene, chloroform, slightly soluble in ethanol, acetone, insoluble in water. |
Parylene N (CAS No. 1633-22-3)
| Product Name | Parylene N |
| CAS Registry Number | 1633-22-3 |
| EINECS | 216-644-2 |
| Molecular Formula | C16H16 |
| Molecular Structure |  |
| Molecular Weight | 208.30 |
| Type | Intermediate |
| Origin | China |
| Packing | 1kg,5kg,10kg,25kg Carton or drum |
| Appearance | White powder |
| Storage | Cool and dry condition, avoid light |
| Shelf time | 24 months |
| Application | • Medical Devices • Aerospace & Defense • Electronics • LEDs • Automotive |