1,2-Dihydroxy-9,10-anthracenedione
- Createtime： 2026-04-14
- Updatetime： 2026-04-15
Product Details
| useage |
Industrial use
|
| deliveryInfo |
|
| appearance |
powder
|
| Molecular Weight |
240.21 g/mol
|
| aliasen |
|
| supplyCapacity |
50000MT/Month
|
| harbor |
Qingdao,China
|
| minorder |
1KG
|
| Appearance |
Orange-red to red 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.
Basic Information
Product Name: 1,2-Dihydroxy-9,10-anthracenedione
CAS Number: 72-48-0
Alias: Alizarin, 1,2-Dihydroxyanthraquinone, Turkey red
Molecular Formula: C14H8O4
Molecular Weight: 240.21 g/mol
IUPAC Name: 1,2-dihydroxyanthracene-9,10-dione
Structural Information
- Structure Type: Polycyclic aromatic diketone, dihydroxy anthraquinone derivative
- Structural Features: Based on anthraquinone tricyclic skeleton, with two hydroxyl groups attached at 1 and 2 positions. The conjugated π-system and adjacent hydroxyl-carbonyl structure bring excellent color rendering performance and chemical reactivity.
Physical & Chemical Properties
- Appearance: Orange-red to red crystalline powder
- Odor: Odorless
- Melting Point: 289–292 °C
- Boiling Point: Sublimes at high temperature without complete boiling
- Solubility: Practically insoluble in cold water; slightly soluble in hot water, ethanol and ether; soluble in alkaline aqueous solution, benzene, toluene and chloroform
- Stability: Stable under normal temperature and sealed conditions. Resistant to weak acid and light. Discolors gradually in strong alkaline environment and decomposes under high temperature or strong oxidants.
Synthesis & Applications
Synthesis Method
It can be extracted from madder root in traditional process. Industrial production adopts chemical synthesis: take anthraquinone as raw material, perform sulfonation and alkali fusion reaction, then acidification and recrystallization to obtain high-purity finished product.
Main Applications
- Dye Industry: Classic natural and synthetic dyestuff, mainly used for dyeing cotton, wool and silk fabrics, famous for producing turkey red color.
- Analytical Chemistry: Widely used as metal indicator, for qualitative and quantitative detection of aluminum, zirconium, thorium and other metal ions.
- Pigment Field: Raw material for preparing organic pigments and colorants for coatings, inks and art paints.
- Pharmaceutical & Cosmetics: Applied as intermediate in pharmaceutical synthesis and natural colorant in cosmetic formulations.
Safety & Storage Instructions
- Hazard Classification: Low toxicity, mild irritant to skin and respiratory tract
- Personal Protection: Wear dust mask, safety goggles and chemical resistant gloves. Avoid long-term inhalation of dust.
- Storage Condition: Keep containers tightly sealed. Store in cool, dry, dark and well-ventilated area. Keep away from heat sources, strong alkalis and oxidizing substances.
- Transportation: Classified as general chemicals. Prevent package damage, moisture and long-term exposure to strong sunlight during transit.
Quality & Spectral Data
- Purity (HPLC): ≥99.0%
- Loss on Drying: ≤0.3%
- Residue on Ignition: ≤0.1%
- Melting Range: 289–292 °C
- IR Spectrum: Characteristic absorption peaks conform to standard reference spectrum
Information Summary Table
| Item | Specification |
| CAS Number | 72-48-0 |
| Product Name | 1,2-Dihydroxy-9,10-anthracenedione |
| Synonym | Alizarin, 1,2-Dihydroxyanthraquinone |
| Molecular Formula | C14H8O4 |
| Molecular Weight | 240.21 g/mol |
| Appearance | Orange-red crystalline powder |
| Melting Point | 289–292 °C |
| Solubility | Insoluble in cold water; soluble in alkaline solution and organic solvents |
| Purity | ≥99.0% (HPLC) |
| Storage Condition | Sealed, cool dry dark place, away from strong alkali and oxidants |
| Hazard Property | Low toxicity, mild irritant |
| Main Usage | Textile dyestuff, metal analytical indicator, organic pigment raw material |
