8-Hydroxyquinoline

Ultimate Guide to 8-Hydroxyquinoline: Properties, Grades, and Reliable B2B Sourcing

  • Jul 17

In the world of fine chemicals and industrial synthesis, finding a high-purity, versatile metal chelating agent is critical to unlocking product performance. Enter 8-Hydroxyquinoline (CAS 148-24-3), a powerful heterocyclic organic compound widely trusted across the pharmaceutical, agricultural, and material science sectors.

Whether you are formulating advanced crop protection chemistry, synthesizing critical pharmaceutical intermediates, or manufacturing precision functional materials, understanding the exact specifications and sourcing standards of this compound is essential.

In this comprehensive guide, we break down the core physicochemical properties, available commercial grades, and why partnering directly with an established manufacturer makes all the difference for your supply chain.

Understanding 8-Hydroxyquinoline: Core Physical & Chemical Properties

8-Hydroxyquinoline (also known as oxine or 8-quinolinol) is a white to pale yellow or light cream-colored crystalline powder with a faint, characteristic odor. Its most distinct chemical trait is its outstanding ability to form stable, water-insoluble complexes upon reacting with various metal ions (such as copper, iron, zinc, and aluminum), making it an elite bidentate chelating agent.

To help your technical team evaluate compatibility, here are the verified technical parameters:

Property

Technical Data

Chemical Formula

C9H7NO

CAS Number

148-24-3

Molecular Weight

145.16 g/mol

Assay (Purity)

≥ 99.5%

Melting Point

70℃ to 73℃

Boiling Point

267℃ (at 752 mmHg)

Solubility

Practically insoluble in water; freely soluble in ethanol, acetone, chloroform, benzene, and aqueous mineral acids.

Sensitivity

Light-sensitive (darkens on prolonged exposure to light; requires dark storage).

Commercial Grades & Industrial Applications

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Because 8-Hydroxyquinoline serves highly regulated downstream sectors, it is processed into specific, certified grades to match different application requirements.

(Note: There is no standard "Food Grade" for 8-Hydroxyquinoline due to its chemical nature and toxicological profile. Beware of suppliers claiming otherwise.)

1. Reagent & Pharmaceutical Intermediate Grade

 Key Uses: Active Pharmaceutical Ingredients (APIs) synthesis, critical intermediate for halogenated quinoline antimicrobials, functional reagents for analytical chemistry, and advanced biochemical research.

 Why Quality Matters: Requires strictly controlled trace metal impurities, minimal moisture content, and zero cross-contamination to guarantee predictable reaction yields and compliance with pharmaceutical synthesis protocols.

2. Industrial & Agricultural Grade

 Key Uses: As the core raw material to synthesize high-efficiency agricultural fungicides (most notably Oxine-Copper / Copper 8-hydroxyquinolate to control grey mold, scabs, and cankers), wood/leather preservatives, textile anti-mildew agents, dye manufacturing, and metal corrosion inhibitors in polymer stabilization.

 Why Quality Matters: Consistent mesh size and excellent solubility in industrial organic solvents ensure smooth reaction metrics, high conversion rates, and batch uniformity in large-scale manufacturing.

Why Source from Snowhite Chemical Co., LTD.?

Securing a stable, cost-effective chemical supply chain requires more than just browsing broker listings. You need a direct pipeline to the source.

Snowhite Chemical Co., LTD. is a professional chemical manufacturing factory based in China. Over years of focused manufacturing excellence, we have established ourselves as a dependable partner for global buyers seeking premium-grade intermediates and fine chemicals.

When you choose Snowhite Chemical as your long-term supplier, you secure competitive advantages designed for industrial scale:

 Direct Factory Pricing: By cutting out intermediate traders, we pass the direct manufacturing cost savings straight to your bottom line.

 Strict Quality Assurance: Every batch undergoes rigorous internal QC and parameters validation. Full COA (Certificate of Analysis), MSDS, and third-party testing reports are provided transparently.

 Flexible Industrial Packaging: Standardized, light-protected 25kg fiber drums lined with double PE bags ensure the product remains perfectly stable, dry, and uncompromised during transit. Custom packaging configurations are available upon request.

 Reliable Logistics & Export Expertise: Our team handles global shipping, clearing regulations seamlessly to deliver on time, every time.

 

Contact Us

Contact SNOWHITE CHEMICAL CO.,LTD now to get COA, free samples and the latest quotation.

Email: shirley@snowhitechem.com

Phone: +86-25-56215758

WhatsApp+86-13776524331

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