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HomecompanyFluorescein disodium salt
Fluorescein disodium salt
Fluorescein disodium salt
Fluorescein disodium salt

Fluorescein disodium salt

Price USD1.00
Packge 1KG
  • Min. Order:1G
  • Supply Ability:100KG
  • Time:2019-07-06

Product Details

  • Product NameFluorescein disodium salt
  • CAS No.518-47-8
  • EINECS No.208-253-0
  • MFC20H13NaO5
  • MW356.31
  • InChIKeyRGPLGPBQJOQFJS-UHFFFAOYSA-L
  • AppearancePowderRust-orange
  • Melting point 320 °C
  • Water Solubility 500 g/L (20 ºC)
  • storage temp. Store at +5°C to +30°C.
  • density 0.579[at 20℃]

AD68

Fluorescein disodium salt Basic information
Product Name: Fluorescein disodium salt
Synonyms: 9-(o-carboxyphenyl)-6-hydroxy-3h-xanthen-3-one,disodiumsalt;9’-(9h)xanthen)-3-one,3’,6’-dihydroxy-spiro(isobenzofuran-1(3hdisodiums;9’-[9h]xanthen]-3-one,3’,6’-dihydroxy-spiro[isobenzofuran-1(3hdisodiumsal;9-o-carboxyphenyl-6-hydroxy-3-isoxanthone,disodiumsalt;abcoluraninepowders&liquids;aizenuranine;c.i.45350disodiumsalt;c.i.45350sodiumsalt
CAS: 518-47-8
MF: C20H10Na2O5
MW: 376.27
EINECS: 208-253-0
Product Categories: Intermediates of Dyes and Pigments;Dyes and Pigments;Pharmaceutical intermediates;Fluorescent;Xanthene
Mol File: 518-47-8.mol
Fluorescein disodium salt Structure
 
Fluorescein disodium salt Chemical Properties
Melting point  320 °C
storage temp.  Store at +5°C to +30°C.
solubility  H2O: soluble1mg/mL
form  Powder
pka 2.2, 4.4, 6.7(at 25℃)
Colour Index  45350
color  Rust-orange
PH Range Pink uorescence (4.0) to green uorescence (6.0)
PH 8.3 (10g/l, H2O, 20℃)
Water Solubility  500 g/L (20 ºC)
λmax 491nm, 493.5nm, 490nm
Merck  14,4159
BRN  3833041
Stability: Stable.
Major Application Nanolithography, 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
InChIKey NJDNXYGOVLYJHP-UHFFFAOYSA-L
CAS DataBase Reference 518-47-8(CAS DataBase Reference)
EPA Substance Registry System Spiro[isobenzofuran- 1(3H),9'-[9H]xanthen]- 3-one, 3',6'-dihydroxy-, 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
F  3
TSCA  Yes
HS Code  32041200
 
 
Fluorescein disodium salt Usage And Synthesis
Chemical Properties orange powder
Uses A sodium salt of fluorescein
Uses In 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 Description Orange-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 Reactions Hygroscopic. Water soluble.
Reactivity Profile Fluorescein disodium salt is incompatible with strong oxidizers. Also incompatible with acids, acid salts and salts of heavy metals .
Fire Hazard Flash point data for Fluorescein disodium salt are not available; however, Fluorescein disodium salt is probably combustible.
Toxicity LD50 in mice, rats (mg/kg): 4738, 6721 orally (Yankel, Loux)

Company Profile Introduction

Henan CoreyChem Co., Ltd, based on the original Zhengzhou Cote Chemical Research Institute, be brave in absorbing highly educated talents & overseas returnees; actively responded to Zhengzhou City High-tech Zone Government’s Special Care Policy, reorganized and founded in National University of Science and Technology Park, which is a high-tech, stock enterprise of high-end chemical Custom synthesis;The park was created by the People's Government of Henan Province, and proved by Ministry of Education and the National Science & Technology, taking the construction mode of "many college a park, and common development", mainly depends on Zhengzhou University and Henan University’s scientific research and talent advantage to set up Universities, scientific research institute and enterprise scientific research achievements transformation platform, to make high-tech enterprises incubate,  is the new high-tech talent gathering base, high and new technology industry enterprise radiation base, colleges and universities technological innovation base.
 
Henan Coreychem Co., Ltd, facing global High-tech pharmaceutical raw materials, high complex new type intermediates, fine chemicals custom synthesis, scale-up production and Rare chemicals trade. Corey have well-equipped machine, strong technical force and considerate marketing team service. We also have rich experience advantage in basic research, small scale process development, scale-up, industrial technology development & production and cost control.
 

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career henan chemical co

Henan China
  • Since:2014-12-17
  • Address: No.967,15th Floor,Unit 7, Building 1, No.70 of DianChang Road, High-tech Development Zone, Zhengzho
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