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.
Basic Information
Product Name: Ellagic acid
CAS Number: 476-66-4
Alias: 2,3,7,8-Tetrahydroxy[1]benzopyrano[5,4,3-cde][1]benzopyran-5,10-dione
Molecular Formula: C14H6O8
Molecular Weight: 302.19
IUPAC Name: 2,3,7,8-tetrahydroxychromeno[5,4,3-cde]chromene-5,10-dione
Structural Information
- Structure Type: Natural polyphenol tannin derivative, dilactone aromatic compound
- Structural Features: Two fused pyranone rings with four phenolic hydroxyl groups; strong antioxidant activity, easy to form chelate complexes with metal ions
Physical & Chemical Properties
- Appearance: Pale yellow crystalline powder
- Odor: Odorless
- Melting Point: >360 °C (decomposes without melting)
- Solubility: Almost insoluble in cold water; slightly soluble in hot water, ethanol, methanol; soluble in alkaline aqueous solution (forms ellagate salt); insoluble in ether, chloroform
- Stability: Stable under dry, cool, light-proof storage; easily oxidized and discolored under strong light, high temperature and alkaline conditions; reacts with metal ions to produce precipitates
Synthesis & Applications
Production Method
- Plant extraction: Hydrolysis of tannins from pomegranate rind, gallnut, strawberry, grape seed
- Chemical synthesis: Oxidative coupling of gallic acid followed by cyclization
Main Applications
- Health care raw material: Antioxidant nutritional supplement, whitening and anti-aging ingredient
- Cosmetic additive: Skin brightening, anti-oxidation, anti-melanin deposition raw material
- Food additive: Natural food antioxidant preservative
- Pharmaceutical research intermediate: Anti-inflammatory, anti-tumor research raw material
Safety & Storage Instructions
- Hazard Classification: Low toxicity, mild eye/respiratory irritation from dust
- Personal Protection: Dust mask, nitrile gloves, goggles, operate in ventilated space
- Storage Condition: Hermetically sealed, cool dark dry warehouse, isolate alkali and metal salts
- Transportation: General plant extract raw material, avoid sunlight and dampness
Quality Specifications
- Purity: ≥98.0% (HPLC)
- Loss on Drying: ≤0.5%
- Residue on Ignition: ≤0.1%
- Heavy Metal (Pb): ≤10 ppm
Information Summary Table
| Item | Specification |
| CAS Number | 476-66-4 |
| Product Name | Ellagic acid |
| Synonym | 2,3,7,8-Tetrahydroxyellagitannin dilactone |
| Molecular Formula | C14H6O8 |
| Molecular Weight | 302.19 |
| Appearance | Pale yellow crystalline powder |
| Melting Point | Decompose above 360°C |
| Solubility | Slightly soluble in hot alcohol/water, soluble in alkali liquor |
| Purity Standard | ≥98.0% |
| Storage Condition | Sealed cool dark storage, separate from alkaline substances |
| Hazard Property | Low toxic, dust slightly irritates eyes and respiratory tract |
| Main Usage | Cosmetic whitening antioxidant, health supplement, natural food preservative |
...
Product
