Azulene CAS 275-51-4
Azulene, CAS No. 275-51-4, molecular formula C₁₀H₈, molecular weight:128.17.
It is a non-alternant bicyclic aromatic hydrocarbon composed of fused 5-membered and 7-membered rings, structurally isomeric to naphthalene.
CAS No: 275-51-4
Appearance: Dark blue / violet crystalline powder or flaky crystal
Solubility: Soluble in ethanol, ether, toluene and other organic solvents; practically insoluble in water
Optical characteristics: Unique visible light absorption derived from intramolecular charge transfer, presenting characteristic blue tone
Chemical features: Exhibits aromaticity with special electrophilic & nucleophilic reactivity; stable under proper storage; incompatible with strong oxidants.
Product Classification: Non-benzenoid bicyclic aromatic hydrocarbon, fine chemical raw material, pharmaceutical & optoelectronic synthetic building block, laboratory research chemical.
| Item | Specifications |
| Appearance | Dark blue to purple crystalline solid |
| Melting point: | 98 - 100 °C (lit.) |
| Boiling point: | 242 °C (lit.) |
| Density: | 1.0530 |
| Refractive index: | 1.5736 (estimated) |
| Flash point | 241 - 243 °C |
Medicinal Chemistry & Scientific Research
Azulene acts as an important bicyclic aromatic scaffold. Widely adopted in laboratory bioactivity screening, drug precursor design, analytical standard and qualitative identification. Researchers investigate its derivatives for anti-inflammatory, anti-oxidant and antiviral activities for new drug development.
Organic Optoelectronic Materials
Thanks to outstanding photoelectric performance, it is widely used to prepare organic semiconductor materials, organic photovoltaics, near-infrared absorbing dyes, luminescent probes and organic electrochemical sensors. It is a hot building block for advanced functional material R&D.
Fine Chemical & Derivative Synthesis
Critical intermediate for synthesis of various azulene derivatives including sodium azulene sulfonate and related azulene active substances.
These derivatives are further used in soothing skincare raw materials, anti-inflammatory additives and specialty fine dyes.
Cosmetic Raw Material Intermediate
Precursor for preparing azulene-based soothing, anti-inflammatory, anti-oxidation cosmetic actives, applied in sensitive skincare, after-sun repair and calming personal care formulations.
• Standard Packing: 25 kg/drum
• MOQ: to be confirmed by grade and destination
• Lead Time: to be confirmed by order quantity and production schedule
• Shipping: sea / air / express options available
• Store in a cool, dry, and well-ventilated place.
• Keep container tightly closed and protected from moisture.
• Avoid direct sunlight, heat, and open flame.
• Follow SDS guidance for incompatible materials.
