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: 1,3-Cyclohexanedione
CAS Number: 504-02-9
Alias: Cyclohexane-1,3-dione, Dihydroresorcinol
Molecular Formula: C6H8O2
Molecular Weight: 112.13 g/mol
IUPAC Name: cyclohexane-1,3-dione
Structural Information
- Structure Type: Alicyclic diketone compound, cyclic β-diketone
- Structural Features: Six-membered cycloalkane ring with two carbonyl groups at 1 and 3 positions. It exists in keto-enol tautomerism, showing strong acidity and high chemical reactivity.
Physical & Chemical Properties
- Appearance: White to off-white crystalline powder
- Odor: Slight characteristic odor
- Melting Point: 103–105 °C
- Boiling Point: 286 °C
- Solubility: Soluble in water, ethanol, methanol, acetone and ether; slightly soluble in aromatic hydrocarbons
- Stability: Stable under sealed and dry conditions. Sensitive to strong light, high temperature and strong oxidants. Easy to react with alkali, amine and metal ions.
Synthesis & Applications
Synthesis Method
Prepared by condensation cyclization reaction of ethyl malonate and ethyl acrylate under alkaline catalysis, followed by hydrolysis, decarboxylation and recrystallization to obtain high-purity product.
Main Applications
- Pharmaceutical Intermediates: Key raw material for synthesizing antibiotics, cardiovascular drugs and pesticide pharmaceuticals.
- Pesticide Industry: Intermediate for manufacturing herbicides, insecticides and fungicides.
- Organic Synthesis: Widely used in fine chemical synthesis, coupling reaction and heterocyclic compound preparation.
- Chemical Reagents: Applied in laboratory research as analytical reagent and synthetic building block.
Safety & Storage Instructions
- Hazard Classification: Mild irritant to skin, eyes and respiratory tract
- Personal Protection: Wear dust mask, safety goggles and chemical resistant gloves. Avoid dust inhalation and direct contact with body tissues.
- Storage Condition: Keep containers tightly sealed. Store in cool, dry, dark and well-ventilated area. Keep away from heat sources, oxidants, acids and alkalis.
- Transportation: Classified as general chemicals. Prevent package damage, moisture and direct sunlight during transit.
Quality & Spectral Data
- Purity (HPLC): ≥99.0%
- Loss on Drying: ≤0.3%
- Residue on Ignition: ≤0.1%
- Melting Range: 103–105 °C
- IR Spectrum: Consistent with standard reference spectrum
Information Summary Table
| Item | Specification |
| CAS Number | 504-02-9 |
| Product Name | 1,3-Cyclohexanedione |
| Synonym | Cyclohexane-1,3-dione, Dihydroresorcinol |
| Molecular Formula | C6H8O2 |
| Molecular Weight | 112.13 g/mol |
| Appearance | White crystalline powder |
| Melting Point | 103–105 °C |
| Solubility | Soluble in water, alcohols, ketones and ethers |
| Purity | ≥99.0% (HPLC) |
| Storage Condition | Sealed, cool dry dark place, away from oxidants and corrosives |
| Hazard Property | Mild irritant |
| Main Usage | Pharmaceutical intermediate, pesticide intermediate, organic synthesis raw material |
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