![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)
0102030405
Four [β - (3.5-ditert butyl, 4-hydroxyphenyl) propionic acid] season four four ester alcohol
constitutional formula:
CAS number: 6683-19-8
Molecular formula: C73H108O12
Molecular weight: 1,177.65
quality standard:
|
Item |
Unit |
Standard |
|
| Appearance |
White crystal powder |
||
| solubility |
Clear |
||
| Light transmittance | 425nm |
% |
≧96.0 |
| 500nm |
% |
≧98.0 |
|
| Volatile matter |
wt% |
≦0.50 |
|
| Melting point |
℃ |
110.0-125.0 |
|
| Ash content |
% |
≦ 0.10 |
|
| Active content |
% |
≧98.0 |
|
| Main content |
wt% |
≧94.0 |
|
01
Product nature
7 Jan 2019
White crystalline powder, dissolved in benzene. acetone. Organic solvents such as chloroform; slightly soluble in ethanol; insoluble in water, excellent hot water resistance and low volatility; no migration and no frost spray in added products.1010 Its almost clean. Semi-lethal amount (white rat LD5015000mg / Kg), many developed countries in the world such as the United States are approved for use in the packaging materials of contact food.
02
use
7 Jan 2019
This product is a typical representative of the blocked phenolic antioxidant, with non-toxic and high efficiency. nondiscolouring. No pollution and other excellent performance, is internationally recognized as a high quality antioxidant. In polypropylene, polyethylene, polyethylene, polyurethane, polystyrene, polyformaldehyde, PBT resin, ABS resin, polyamide, synthetic rubber and other polymeric materials are extremely widely used. This product is also a variety of natural and synthetic oil products advanced antioxidant.
03
7 Jan 2019
keep in storage:
This product is stable without special requirements; pay attention to moisture and avoid high temperature.
pack:
The carton is lined with plastic bags, with a net weight of 25 Kg.
Reference dosage:
0.1-0.3% (100 in resin)
Antioxidants: Overview, Properties, Principles of Action, Uses and Applications
Antioxidants are important additives used in various industries to prevent oxidative degradation of materials. They are particularly important in polymers, lubricants and food products. The following is a detailed overview of its properties, principles of action, uses and applications:
Product performance
Oxidation Inhibition: Antioxidants effectively inhibit the oxidation process, which can cause material degradation, discoloration or loss of mechanical properties.
Enhanced Durability: Antioxidants can significantly extend the life of your product by preventing oxidative degradation.
Thermal Stability: Many antioxidants also provide thermal stability, ensuring the material can withstand high temperatures without degrading.
Compatibility: They are compatible with a wide range of polymers, oils and other materials, making them suitable for a variety of applications.
Principles of Action
Antioxidants work primarily through two mechanisms:
Primary Antioxidants (Free Radical Scavengers): These compounds, such as hindered phenols and aromatic amines, neutralize free radicals formed during oxidation. By donating hydrogen atoms, they convert free radicals into more stable, non-reactive species.
Second Antioxidants (Peroxide Decomposers): These compounds, such as phosphites and thioesters, break down hydroperoxides into non-radical, stable products. This prevents hydroperoxides from decomposing into free radicals, thereby inhibiting oxidative chain reactions.
App
Plastics and Polymers: Used in polyethylene, polypropylene, PVC and other polymers to prevent oxidative degradation during processing and end use.
Rubber: Added to rubber compounds to prevent oxidative aging, which can lead to embrittlement and loss of elasticity.
Lubricants and Fuels: Added to oils, greases and fuels to prevent oxidation, which can lead to sludge formation, increased viscosity and acid build-up.
Food Industry: Used in food packaging and food to prevent oxidation, which can lead to rancidity and loss of nutritional value.
Cosmetics: Added to skin care products and cosmetics to prevent oxidation of active ingredients and ensure product stability and efficacy.
Adhesives and Sealants: Used to maintain the performance and durability of adhesives and sealants exposed to oxidative conditions.
In Conclusion
Antioxidants are essential for improving the durability and performance of materials exposed to oxidative conditions. By understanding their properties, principles of action and applications, industries can effectively utilize these additives to produce high-quality products that last longer.
The information of our products is for reference only. We are not responsible for any unexpected results, or patent dispute caused by it.