Reliable cyclopentanone manufacturer supplying pharmaceutical/electronic/industrial grade cyclopentanone (CAS 120-92-3) for pharma intermediates, flavors & fragrances, electronics. Support bulk orders, custom packaging & global regulatory compliance. Get instant quote now!
Product Overview: Cyclopentanone
Cyclopentanone (CAS No.: 120-92-3) is a key five-membered cyclic ketone organic compound with high reactivity and structural stability. As a professional cyclopentanone manufacturer in China, we produce high-purity cyclopentanone through advanced catalytic hydrogenation technology, ensuring consistent quality that meets industrial, pharmaceutical and electronic grade standards. Our cyclopentanone is widely applied in the synthesis of pharmaceutical intermediates (antidepressants, antibacterial drugs), flavors & fragrances, electronic cleaning agents, rubber accelerators and agrochemicals, trusted by pharmaceutical companies, chemical enterprises and research institutions worldwide.
Technical Specifications
| Item | Specification (Pharma/Electronic Grade) | Test Method |
| Chemical Name | Cyclopentanone | – |
| CAS Number | 120-92-3 | – |
| Synonyms | Cyclopentan-1-one; Ketocyclopentane | – |
| Molecular Formula | C₅H₈O | – |
| Molecular Weight | 84.12 | – |
| Appearance | Colorless transparent liquid | Visual Inspection |
| Purity | ≥99.5% (Pharma); ≥99.9% (Electronic) | GC |
| Boiling Point | 129-130°C | ASTM D86 |
| Melting Point | -51°C | ASTM D1461 |
| Density (20°C) | 0.947-0.949 g/cm³ | ASTM D4052 |
| Refractive Index (20°C) | 1.434-1.435 | ASTM D1218 |
| Flash Point (Closed Cup) | 32°C | ASTM D93 |
| Water Content | ≤0.05% | Karl Fischer Method |
| Acidity (as acetic acid) | ≤0.02% | Titration Method |
| Storage Condition | Store in cool, dry and ventilated place; keep away from fire and oxidants; sealed storage | – |
| Shelf Life | 2 years when stored as recommended | – |
Applications
Cyclopentanone is a versatile organic intermediate with wide applications in pharmaceutical, chemical, electronic and other industries. Its main applications include:
- Pharmaceutical Intermediates: Synthesis of antidepressants (e.g., Paroxetine), antibacterial drugs, cardiovascular drugs and anti-tumor drugs
- Flavors & Fragrances: Production of raspberry ketone, jasmone and other natural flavors
- Electronic Industry: Cleaning agent for semiconductor components and electronic devices
- Chemical Industry: Synthesis of rubber accelerators, agrochemicals and special polymers
- Research & Development: Raw material for organic synthesis research and reference standards
Shipping Information
- Dangerous Goods Class: 3 (Flammable Liquid), UN 1224
- Shipping Methods: Air freight (for urgent orders), Sea freight (for bulk orders), Land freight (for neighboring countries)
- Special Requirements: Keep away from fire and heat sources during transportation; avoid mixing with oxidants
- Global Coverage: North America, Europe, Asia, Africa, Oceania with professional customs clearance team support
Request a Quote or Technical Support
For inquiries about cyclopentanone (CAS 120-92-3) pricing, availability, custom purity grades, packaging or technical documentation, please contact our sales team directly. We will respond within 24 hours.


