Water tracing
Traces groundwater, rivers, sewers and drainage, and checks mixing in water systems.
Batch sample
Speciality Dyes · Extra Pure
Fluorescein Sodium
Also known as Uranine, Acid Yellow 73 and Sodium fluorescein
CAS518-47-8
FormulaC₂₀H₁₀Na₂O₅
MW376.27
PubChem10608
The disodium salt of fluorescein: an intensely fluorescent yellow-green tracer dye.
AssayOn request
GradeExtra Pure
MW376.27
ISO 9001:2015 certified supplier
Overview
About Fluorescein Sodium
Fluorescein Sodium, also called uranine, is an orange-red powder that dissolves in water to give a yellow solution with a brilliant green fluorescence, visible at very low concentrations.
That sensitivity makes it the standard tracer for following water flow and finding leaks, as well as a fluorescent label in laboratories.
IdentityC₂₀H₁₀Na₂O₅
- CAS number
- 518-47-8
- Molecular formula
- C₂₀H₁₀Na₂O₅
- Molecular weight
- 376.27
- PubChem CID
- 10608
- Appearance
- Orange-red powder
- Grade
- Extra Pure
Technical specification
Specification on request
We will send the current specification sheet for Fluorescein Sodium, Extra Pure grade, with your quote, including the assay, limits and test methods.
Have your own limits?Send them with your enquiry. Our team will confirm which limits we can meet before you order.
Ask for the specification
Applications
Where Fluorescein Sodium is used
Leak detection
Finds leaks in pipes, tanks, cooling systems and plumbing.
Fluorescent labelling
A fluorescent marker and reference dye in microscopy and laboratory methods.
Packing
Packed to your order
We pack Fluorescein Sodium in sealed containers suited to the product, from laboratory bottles to bulk packs. Every container carries the product name, batch number, dates and hazard labels. Tell us the pack size and quantity you need.
Storage & handling
Keep it dry, closed and out of the light
- Store in the original, tightly closed container in a cool, dry, well-ventilated place.
- Protect from direct light and moisture.
- Dyes stain skin, clothing and surfaces strongly. Wear gloves, eye protection and a dust mask when handling.
Read the MSDS for full hazard, first-aid and disposal information.
Documents
Specification and safety documents
Ask for any of these and we will email them with your quote.
Questions
Frequently asked
Which pack sizes can I order?
Tell us the quantity you need. We will suggest the right pack, from laboratory bottles to bulk packs, with your quote.
Can I see the specification for Fluorescein Sodium?
Yes. Ask for the specification sheet with your enquiry and we will send the current limits and test methods.
Can you supply against our own specification?
Send your specification with your enquiry. Our team will confirm which limits we can meet before you order.
Do you ship outside India?
Yes. We hold an Import Export Code and supply both domestic and export buyers. Mention the destination country in your enquiry so we can quote the right packing and documents.
Related products
Other speciality dyes
Enquire
Get a quote for Fluorescein Sodium
Tell us the quantity, pack size and destination. We will confirm price, availability and lead time, and send the documents you need.
Phone & WhatsApp+91 77530 58907
Emailankur.agrawal@spacorporation.in