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Fluorescein Sodium

Fluorescein Sodium Suppliers list
Company Name: Zhengzhou Alfa Chemical Co.,Ltd
Tel: +86 13343822234;+86 18703821685;+86 18530059196;+86 19139973225
Products Intro: CAS:518-47-8
Purity:97% Min. Package:5g, 25g, 100g, 500g, 1kg, 25kg Remarks:top
Company Name: Shenyang Xianchuang Chemical Co., Ltd.
Tel: +86-024-23769576
Products Intro: Product Name:Fluorescein Sodium
Purity:99% Package:10kg 25kg kilograms per barrel Remarks:Factory price
Company Name: Henan DaKen Chemical CO.,LTD.
Tel: +86-371-66670886
Products Intro: Product Name:Fluorescein disodium salt
Purity:99.00% Package:100g,500g,1KG,10KG,100KG
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: 0371-55170693
Products Intro: Product Name:Fluorescein Sodium
Purity:0.99 Package:25KG,5KG;1KG;500G
Company Name: Hangzhou FandaChem Co.,Ltd.
Tel: 008615858145714
Products Intro: Product Name:Fluorescein sodium salt fandachem
Purity:As coa Package:As request Remarks:518-47-8

Lastest Price from Fluorescein Sodium manufacturers

  • Fluorescein Sodium
  • US $72.00 / Kg/Bag
  • 2021-09-14
  • CAS:518-47-8
  • Min. Order: 1KG
  • Purity: 99%
  • Supply Ability: 2000KG
  • Fluorescein Sodium
  • 2021-09-10
  • CAS:518-47-8
  • Min. Order: 25KG
  • Purity: 99%
  • Supply Ability: 1000kgs per month
  • Fluorescein Sodium Salt
  • US $20.00 / Kg/Drum
  • 2021-09-07
  • CAS:518-47-8
  • Min. Order: 25Kg/Drum
  • Purity: 99.99%
  • Supply Ability: 1 ton per week
Fluorescein Sodium Basic information
Product Name:Fluorescein Sodium
Product Categories:Fluorescent;Xanthene;Intermediates of Dyes and Pigments;Dyes and Pigments;Pharmaceutical intermediates
Mol File:518-47-8.mol
Fluorescein Sodium Structure
Fluorescein Sodium Chemical Properties
Melting point 320 °C
storage temp. Store at +5°C to +30°C.
solubility H2O: soluble1mg/mL
Colour Index 45350
pka2.2, 4.4, 6.7(at 25℃)
form Powder
color Rust-orange
PH RangePink uorescence (4.0) to green uorescence (6.0)
PH8.3 (10g/l, H2O, 20℃)
Water Solubility 500 g/L (20 ºC)
λmax491nm, 493.5nm, 490nm
Merck 14,4159
BRN 3833041
Major ApplicationNanolithography, nanoparticles, thin films, fuel cells, inks, laser, colored bubbles, cleansing products, identifying leaks in coolant, suntanning agent, hair dyes, cosmetics, dermatology, dental material, diagnosis of diabetic retinopathy, antitumor agent
CAS DataBase Reference518-47-8(CAS DataBase Reference)
EPA Substance Registry SystemFluorescein, disodium salt (518-47-8)
Safety Information
Hazard Codes Xi
Risk Statements 36-36/37/38
Safety Statements 22-24/25-37/39-26-36/37/39-27
WGK Germany 1
RTECS LM5425000
HS Code 32041200
Hazardous Substances Data518-47-8(Hazardous Substances Data)
ToxicityLD50 in mice, rats (mg/kg): 4738, 6721 orally (Yankel, Loux)
MSDS Information
C.I. 45350 English
SigmaAldrich English
ACROS English
ALFA English
Fluorescein Sodium Usage And Synthesis
Chemical PropertiesOrange-red powder; odorless. Hygroscopic, soluble in water; sparingly soluble in alcohol.
UsesA sodium salt of fluorescein
UsesIn examining subterranean waters. Serves to ascertain source of springs, connections between streams and sea, determining approx vol of water delivered by a spring, detecting source of contamination of drinking water, infiltration of soil with waste waters of factories. In externally applied drugs and cosmetics. Analytical reagent (protein label). Clinical reagent (immuno-histological stain, immuno-fluorescent label).
General DescriptionOrange-red to dark red powder. Water-soluble form of fluorescein. Odorless and almost tasteless. pH (5% solution) 7.8. May be sensitive to prolonged exposure to light and to heat.
Air & Water ReactionsHygroscopic. Water soluble.
Reactivity ProfileFluorescein disodium salt is incompatible with strong oxidizers. Also incompatible with acids, acid salts and salts of heavy metals .
Fire HazardFlash point data for Fluorescein disodium salt are not available; however, Fluorescein disodium salt is probably combustible.
Safety ProfileModerately toxic by intraperitoneal route. Mildly toxic by ingestion. Human systemic effects by intravenous route: arrhythmias, eye hemorrhage, nausea or vomiting. Experimental reproductive effects. Questionable carcinogen with experimental tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of Na2O.
Veterinary Drugs and TreatmentsFluorescein sodium is a yellow water-soluble dye that fluoresces under a Wood’s Lamp, but is plainly visible after binding to corneal stroma through an ophthalmic examination light source. It is used most commonly to delineate full thickness loss of corneal epithelium indicating the presence of a corneal ulceration. In this instance it will stain the corneal stroma. The epithelium is not stained because its outer lipid cell membrane repels the stain. Descemet’s membrane will not stain with fluorescein stain and this is used to indicate descemetocele formation, an ocular emergency.
Fluorescein stain is applied to the precorneal tear film in dogs and cats and the break-up of this stain with time, as observed through a slit lamp biomicroscope using a cobalt blue light source, is used to determine the tear film break-up time (normal 19 seconds), an indicator of tear film quality.
Fluorescein stain is applied to the tear film of dogs to determine patency of the nasolacrimal outflow system. The normal wait time is 2 – 5 minutes in dogs and up to 10 minutes in cats. A positive test indicates patency of the system. A negative test is not indicative of disease as the test is negative in a large percentage of normal animals. Fluorescein stain, then, can be added to irrigating solution to flush the nasolacrimal system, making detecting the irrigation solution at the nose more obvious during flushing of the system.
Properties and Applicationsbrilliant yellow. Soluble in water and ethanol (with strong green fluorescent), water-soluble good. In strong sulfuric acid with weak for fluorescence yellow, it will be diluted with yellow precipitation. Its water solution and sodium hydroxide with dark green fluorescence for brunet solution. Mainly used for sea of target that fluorescent, facilitate aerial reconnaissance search. And can use significantly for the exploration of fluorescent groundwater. Can also be used for medicine and cosmetics shading, rarely used for silk printing and dyeing things.
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