Naproxen
- Createtime： 2026-04-14
- Updatetime： 2026-04-15
Product Details
| useage |
Industrial use
|
| deliveryInfo |
|
| appearance |
powder
|
| Molecular Weight |
230.26
|
| aliasen |
|
| supplyCapacity |
50000MT/Month
|
| harbor |
Qingdao,China
|
| minorder |
1KG
|
| Appearance |
White to off-white crystalline powder
|
Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
Naproxen
CAS No.: 22204-53-1
Molecular Formula: C14H14O3
Molecular Weight: 230.26
Physical and Chemical Properties
- Appearance: White to off-white crystalline powder
- Melting Point: 153 - 158 °C
- Specific Rotation: +63.0° ~ +68.0° (c=1, CHCl3)
- Density: 1.22 g/cm3
- Solubility: Practically insoluble in water, freely soluble in chloroform, soluble in methanol, ethanol and acetone, slightly soluble in ether
- Odor: Odorless
- Stability: Stable under normal ambient conditions. Sensitive to strong light, avoid long-term exposure to sunlight. Stable in weak acid and neutral environment, decomposed under strong alkaline condition.
- pH Value: 3.0 - 4.5 (saturated aqueous solution)
Application
- Pharmaceutical raw material: Main active ingredient of non-steroidal anti-inflammatory drugs, used for relieving pain, reducing fever and treating rheumatoid arthritis, osteoarthritis and other inflammatory diseases.
- Medical intermediate: Applied in the synthesis of pharmaceutical derivatives and related pharmaceutical preparations.
- Biochemical research reagent: Used for pharmacological experiments and biological analysis in laboratories.
- Veterinary medicine: Applied in veterinary pharmaceutical formulations for pain relief and anti-inflammation of animals.
Storage Condition
Store in a cool, dry and dark place. Keep container tightly sealed. Keep away from heat sources, direct sunlight, strong alkalis and oxidizing substances. Avoid mixing with toxic and odorous materials.
| Item | Specification | Test Result | Method |
| Product Name | Naproxen | Compliant | Visual & Identification |
| CAS No. | 22204-53-1 | 22204-53-1 | Standard |
| Molecular Formula | C14H14O3 | C14H14O3 | Standard |
| Molecular Weight | 230.26 | 230.26 | Standard |
| Appearance | White to off-white crystalline powder | White crystalline powder | Visual Inspection |
| Purity (HPLC) | ≥99.0% | 99.81% | High Performance Liquid Chromatography |
| Melting Point | 153 - 158 °C | 154.2 - 156.1 °C | Capillary Method |
| Specific Rotation | +63.0° ~ +68.0° | +65.4° | Polarimetry |
| Loss on Drying | ≤0.30% | 0.11% | Karl Fischer Titration |
| Residue on Ignition | ≤0.10% | 0.03% | Gravimetric Method |
| Chloride | ≤80 ppm | <10 ppm | Turbidimetric Method |
| Sulfate | ≤80 ppm | <11 ppm | Turbidimetric Method |
| Heavy Metals | ≤10 ppm | <3 ppm | Atomic Absorption Spectrometry |
| Related Substances | Total impurities ≤0.8% | 0.15% | HPLC |
