8-Hydroxyquinoline
Physical & Chemical Properties
| Product Category | Pyridine and Heterocyclic Pharmaceutical Intermediate | ||||||
| Appearance | White Crystal | ||||||
| Melting Point | 70-74℃ | ||||||
| Solubility: | 0.56g/l | ||||||
| Water Solubility | INSOLUBLE | ||||||
| Density | 1.034 | ||||||
| Boiling point | 267℃ at 760 mmHg | ||||||
| Refractive index | 1.4500 (estimate) | ||||||
| Flash Point | 143.1℃ | ||||||
| Vapour Pressure | 0.00508mmHg at 25℃ | ||||||
| pKa | 5.017(at 20℃) | ||||||
Product Description
8-Hydroxyquinoline is a premium-grade multifunctional organic compound, appearing as a white to pale yellow crystalline powder with a characteristic phenolic odor. Renowned for its exceptional ability to form stable complexes with a wide variety of metal ions, it serves as an indispensable chelating agent in analytical chemistry and industrial metallurgy. Beyond its laboratory utility, 8-HQ is a potent antiseptic and disinfectant, making it a cornerstone ingredient in the formulation of topical medical treatments, cosmetics, and agricultural fungicides.
Product Features
Superior Chelating Ability: Acts as a bidentate chelating agent, forming insoluble coordination compounds with metal ions like Al3+, Cu2+, and Zn2+, ideal for metal precipitation and separation.
Broad-Spectrum Antimicrobial: Exhibits strong antibacterial, antifungal, and anti-amebic properties, frequently utilized in dermatological ointments and wound care products.
High Analytical Grade Purity: Produced with a high assay percentage (typically 99% or higher), ensuring reliable and reproducible results in quantitative chemical analysis.
Chemical Stabilization: Widely used as a stabilizer for chemical solutions, particularly in preventing the decomposition of hydrogen peroxide (H2O2).
Agricultural Efficacy: Serves as a key active ingredient or intermediate in fungicides and herbicides, protecting crops from various fungal pathogens.
Fluorescence Properties: Its metal complexes often exhibit strong fluorescence, making it a valuable tool in fluorescent labeling and trace metal detection.
Low Volatility: Features a melting point of approximately 74 to 76 degrees Celsius, providing stability during handling and storage in industrial environments.
Packaging & Specifications
Packaging Specifications
Sample packaging: 1g/5g/10g in glass bottles (with inner sealing);
Bulk packaging: 25kg in cardboard drums (inner packaging with vacuum aluminum foil bags).
Packaging Customization
Neutral packaging or customer-specified brand packaging is supported; prior communication and confirmation are required.
Storage Conditions
Store in a cool and dark environment (temperature < 15°C), sealed under an inert gas atmosphere. Avoid contact with oxidizing agents and prevent moisture absorption.
Shelf Life
18 months shelf life when stored in original packaging (sealed condition).
Quality Compliance & Assurance

Supply Service & Description
Supply Capacity
Supply capacity: Annual production capacity of 50 tons. Popular products are usually in stock (in-stock orders shipped within 72 hours); customized orders are delivered within 7-15 working days based on process requirements.
Shipping options
Samples: DHL/UPS international express (3-7 days delivery);
Bulk cargo: Cooperate with logistics providers (e.g., Maersk) via sea/air freight. Full set of customs declaration documents are provided to ensure compliant customs clearance.
Payment terms
Sample orders: 100% prepayment;
Bulk orders: T/T (30% deposit, 70% payment against copy of bill of lading). L/C payment terms are negotiable.
Related & Extended Content
Recommended related products
(R)-3-Boc-aminopiperidine (CAS: 309956-78-3), Alogliptin benzoate (CAS: 850649-62-6)
Frequently Asked Questions(FAQ)
Q1: Is the product's chiral purity stable for large - scale production?
A1: The chiral purity remains ≥99% in mass production, and we provide chiral detection reports for each batch.
Q2: Can samples be provided before bulk procurement?
A2: Free 1g samples are available, and customers only need to bear the shipping cost.














