Fluorescein

Fluorescein—High-Visibility Tracer Dye for Industrial and Scientific Use

Fluorescein is one of those rare compounds that blends scientific reliability with practical visibility. It’s water-soluble, vividly bright under UV light, and incredibly versatile. Across Australia, it’s found in industrial sites, labs, and even medical environments—quietly doing important work. Its intense yellow-green fluorescence has made it indispensable for applications like water tracing, leak detection, and diagnostics. Whether it’s used deep underground in a hydrological survey or during a delicate ophthalmic procedure, fluorescein performs consistently—and that’s why so many professionals trust it.

What Is Fluorescein?

Technically speaking, fluorescein—also sometimes referred to as uranine or fluorescein sodium—is a synthetic compound derived from the xanthene dye family. In its raw form, it usually looks like a dark red or orange crystalline powder. But once it touches water? It transforms. The solution glows with a striking yellow-green hue that lights up vividly under UV or blue light. That property alone makes it invaluable for tracing movement in both clear and murky fluids.

It’s available in a couple of forms—mostly either solid powder or pre-mixed solutions. If you’re planning a purchase, it’s always a good idea to confirm the exact format and concentration to ensure it’s right for your setup. That small detail can save a lot of hassle later.

Key Industrial Applications

Fluorescein isn’t just used in one field—it’s all over the place. Some of the most common applications include:

• Hydrology and Civil Engineering: It’s widely used to trace water flow through rivers, groundwater, and even complex piping systems.
• Environmental Science: It helps monitor pollutant dispersal and detect leaks in drainage or sewer systems—both small-scale and large.
• Pharmaceutical and Medical Diagnostics: This includes use in eye exams (like corneal staining), angiography, and various lab tests.
• Food and Cosmetic Manufacturing: Often used as a colour tracer during quality control processes to help catch irregularities early.

The fact that it’s non-toxic, water-soluble, and clearly visible under UV light makes it a safe and efficient option for all these settings. And honestly, it’s kind of rare to find something this effective that’s also this easy to handle.

Why Choose Our Fluorescein?

We take pride in being a trusted fluorescein supplier in Australia. Our product is available in high-purity forms, suited to everything from large industrial projects to precise laboratory work. Each batch is quality-tested for consistency. You can request it in powder or solution form, depending on what suits you best.

Need something packaged in bulk? No problem—we offer flexible options to meet different volume requirements. If you’re ready to move forward or just want to get pricing, Request a Quote.

Safe Handling & Storage

While fluorescein is relatively safe, there are still standard handling guidelines to follow—especially if you’re working with the powder form:

• CAS Number: 2321-07-5 (specific to fluorescein disodium salt)
• Appearance: Typically dark red to orange crystalline powder
• Solubility: Easily dissolves in water
• Stability: Remains stable under normal storage conditions
• Protective Equipment: Gloves, goggles, and a dust mask are recommended when handling the powder
• Storage: Best stored in a cool, dry, and well-ventilated space. Always keep the container sealed tightly when not in use.

If you need more comprehensive safety details, such as potential hazards or emergency protocols, you can Request the SDS.

Buy Fluorescein in Australia

If you’re searching for a dependable source of fluorescein, we’re here to help. We supply high-quality product across Perth and the rest of Australia, working with councils, research labs, and various industries. What sets us apart? Fast delivery, secure packaging, and product reliability—things our customers tend to value.

Enquire today to check availability or request a quote. We’re happy to support your project needs, no matter the scale.