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-cyclopropylnaphthalene
CAS Number: 25033-19-6
Alias: 1-Cyclopropyl-1H-naphthalene
Chemical Full Name: 1-cyclopropylnaphthalene
Molecular Formula: C13H12
Molecular Weight: 168.23
EINECS: Not available
Structural Information
- Structure Type: Aromatic cyclopropyl-substituted naphthalene fine chemical intermediate
- Structural Features: Naphthalene fused aromatic ring linked with cyclopropyl group at α-position; cyclopropyl ring has high ring strain, easy ring-opening reaction under acid/catalytic conditions; aromatic skeleton provides good UV absorption and fluorescent properties
- Characteristic: Key building block for synthetic new functional materials, pharmaceutical intermediates, liquid crystal monomers
Physical & Chemical Properties
- Appearance: Colorless transparent oily liquid
- Odor: Mild aromatic hydrocarbon odor
- Melting Point: <0°C
- Boiling Point: 262–266 °C
- Flash Point: >110 °C
- Density (20℃): 1.028 g/cm3
- Solubility: Insoluble in water; miscible with toluene, dichloromethane, THF, ethanol, other organic solvents
- Stability: Stable under sealed cool dark storage; prone to oxidation under long-term strong light and high temperature; cyclopropyl ring opens under strong acid catalysis to form alkyl naphthalene derivatives
Synthesis & Applications
Production Method
Cross-coupling reaction of 1-bromonaphthalene with cyclopropyl Grignard reagent, catalytic coupling, vacuum distillation purification.
Main Applications
- Pharmaceutical Intermediate: Synthetic precursor for nervous system drugs, anti-inflammatory chiral drug skeletons
- Optoelectronic Material Intermediate: Raw material for liquid crystal compounds, UV-absorbing functional monomers
- Organic Synthesis Block: Substrate for ring-opening derivatization, fluorescent probe synthesis
- Fine Chemical Additive: High-boiling aromatic solvent additive for special coatings
Safety & Storage Instructions
GHS Hazard Classification
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation from vapor inhalation
Personal Protection
Organic vapor respirator, chemical splash goggles, oil-resistant nitrile gloves; operate in ventilated fume hood, avoid prolonged skin contact.
Storage Condition
Hermetically sealed lined iron drum, cool dry dark warehouse ≤25℃; isolate strong acids, oxidants, avoid direct sunlight to prevent oxidation.
Transportation
General aromatic hydrocarbon liquid chemical; prevent drum leakage, separate from food products.
Quality Specifications
- Purity (GC): ≥98.0%
- Moisture: ≤0.1%
- Chroma (Pt-Co): ≤15
- Single related impurity: ≤0.2%
Information Summary Table
| Item | Specification |
| CAS Number | 25033-19-6 |
| Product Name | 1-cyclopropylnaphthalene |
| Synonym | 1-Cyclopropylnaphthalene |
| Molecular Formula | C13H12 |
| Molecular Weight | 168.23 |
| Appearance | Colorless oily liquid |
| Flash Point | >110℃ |
| Core Advantage | Cyclopropyl substituted naphthalene coupling monomer, medicine & liquid crystal intermediate |
| Storage Rule | Sealed light-proof cool storage, separated from strong acid and oxidants |
| Hazard Property | Mild irritant to skin, eyes and respiratory tract, low toxicity |
| Main Usage | Pharmaceutical synthetic intermediate, liquid crystal material raw material, organic fluorescent probe building block |
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