Fluorescein Disodium Salt CAS 518-47-8 Acid Yellow 73 Uranine

• Customization: Available
• CAS No.: 518-47-8
• Formula: C20h12o5.2na
• Model NO.: SUREST-128
• EINECS: 208-253-0
• Classification: Organic Analytical Reagents
• Grade: AR
• Specific Usage: For Biological Purpose, For Tissue Medium Purpose, For Microbiological, Pratical Use, Pro Analysis, Super Special Grade, For Synthesis
• Content: Standard
• Usage: Laboratory Reagents, Analytical Reagents, Diagnostic Reagents, Teaching Reagents
• Source: Dry Powder
• Habit Appellation: Special Reagent
• Application: Industry, Scientific Research, Health, Environmental Protection, Agriculture
• Property: Organic Reagent
• Shelf Life: 2 Years
• Stock: Available
• Molecular Weight: 376.27
• Color: Orange Red
• Melting Point: 320 ºC
• Water Solubility: 500 G/L (20 ºC)
• Transport Package: 25kg /Drum
• Specification: 98%min
• Trademark: Surest
• Origin: China
• HS Code: 3204200000
• Production Capacity: 1000 Tons Yearly

Product Description

Product Description

 

Name	Fluorescein disodium salt
Synonyms	Acid Yellow 73; C.I. 45350; Disodium 2-(3-oxo-6-oxidoxanthen-9-yl)benzoate; Uranine
Molecular Structure
Molecular Formula	C20H12O5^.2Na
Molecular Weight	376.27
CAS Registry Number	518-47-8
EINECS	208-253-0

Properties

Melting point	320 ºC
Water solubility	500 g/L (20 ºC)

 

Chemical Property/Description:

 

Fluorescein disodium salt is a orange red powder, soluble in water and alcohol solvents, slightly soluble in ether. It is yellow under acidic conditions and green fluorescent under alkaline conditions. Its melting point is about 320 ° C.

 

Main Uses:

 

Fluorescein disodium salt has been widely used in chemical analysis, biomedicine, fluorescence microscopy and chemiluminescence. It is usually used as a biochemical reagent in experiments to determine enzyme activity, protein content and cell activity. Sodium fluorescein can also be used to prepare other fluorescent dyes, such as fluorescein phosphate.
 

Fluorescein disodium salt can also be used in cell biology research and molecular biology research. Researchers typically use sodium fluorescein as a substrate to detect the expression and localization of proteins or other biomolecules. This approach could help scientists better understand the fundamental processes of life and provide a basis for developing new treatments.

 

Detailed Photos

 

FAQ

 

FAQ
Question 1: Can I get samples?
Answer: Yes,you can get free samples of our most products,
while the courier cost will be borne by the buyers.

Question 2: What's your MOQ?
Answer: For a express delivery order,the MOQ is usually 100 g~1 kg;
for an air transport order or sea delivery order ,the MOQ is usually 25 kgs.

Question 3: What's your delivery time?
Answer:
Orders shipped by express delivery,the delivery time is usually 5~7 working days;
Orders shipped by air transport,usually around 7~10 working days;
Orders shipped by sea , usually around 2~3 working weeks.

Question 4: What are the different payment methods?
Answer: We usually accept T/T, L/C and Western Union.

Question 5: How do you treat quality complaint?
We take quality very seriously, it is one of the founding principles of our business.
 If the quality problem actually exists, we will replace with qualified goods or refund the money.