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Home> Products > Dyestuffs and Pigments > Pigment & Dyestuff > Food Dyestuffs > CAS DataBase Listed 2 > CAS 2321-07-5
2321-07-5 structure 3D

CAS 2321-07-5 products price,suppliers

  • Name: 5-{[2-(2-butoxyethoxy)ethoxy]methyl}-6-propyl-1,3-benzodioxole - 1,1'-(2,2,2-trichloroethane-1,1-diyl)bis(4-chlorobenzene) (1:1)
  • Molecular Weight: 332.31
  • Formula: C20H26O6
  • Fluorescein is a synthetic organic compound available as a dark orange/red powder slightly soluble in water and alcohol. It is widely used as a fluorescent tracer for many applications. Fluorescein is a fluorophore commonly used in microscopy, in a type of dye laser as the gain medium, in forensics and serology to detect latent blood stains, and in dye tracing. Fluorescein has an absorption maximum at 494 nm and emission maximum of 521 nm (in water). The major derivatives are fluorescein isothiocyanate (FITC) and, in oligonucleotide synthesis, 6-FAM phosphoramidite. Fluorescein also has an isosbestic point (equal absorption for all pH values) at 460 nm. Fluorescein is also known as a color additive (D&C Yellow no. 7). The disodium salt form of fluorescein is known as uranine or D&C Yellow no. 8. The color of its aqueous solution varies from green to orange as a function of the way it is observed: by reflection or by transmission, as it can be noticed in bubble levels in which fluorescein is added as a colorant to the alcohol filling the tube to increase the visibility of the air bubble and the precision of the instrument. More concentrated solutions of fluorescein can even appear red.
Properties Safety and Handling MSDS NMR Spectrum Synthesis Route Precursor and Product Computational chemical data
Safety Data
  • [Risk Codes]
  • [Safety Statements]
  • Appearance:
  • orange-red crystalline powder
  • Molecular Weight:
  • 332.31
  • Melting Point:
  • 320 °C(lit.)
  • Storage Temperature:
  • −20°C
  • Refractive index:
  • 1.5000 (estimate)
  • Solubility:
  • Insoluble in water
  • Stability:
  • Stable. Combustible. Incompatible with strong oxidizing agents.
  • More Properties>>
Question & Answer
  • Conversion of Erythrosine to Fluorescein I am a home-chemist and I love dyes. I recently got my hands on sodium salt of erythrosine (tetra-iodinated fluorescein ). I want to convert erythrosine to fluorescein. I speculate that using dilute NaOH solution might cause formation of sodium iodide and tetra-hydroxylated fluorescein. How can I r...more+ Aug 30 2021
  • Latent blood detection with fluorescein I need help with the reaction between fluorescein and blood in the method of detecting latent blood stains. I find it hard to find any literature on this subject. As far as I am concerned, the fluorescein is reduced into fluorescin in a stock solution with powdered zinc, distilled water and sodium ...more+ Aug 18 2021
  • Why does aqeous fluorescein shine when exposed to UV light? I know that (aq) fluorescein "absorbs" UV light and releases light in the visible spectrum , but how does it do that. It is a really interesting and useful organic chemical and I just wanted to know what goes on in it so that it lights up. more+ Aug 09 2021
  • Does fluorescein decompose from long term exposure to light? I've had about one liter of fluorescein solution setting on the shelf for at least several years and one day noticed that it suddenly lost its characteristic green color. It's now a light yellowish-green solution that seems to have lost the property of fluorescence altogether. The container is a re...more+ Jun 01 2021
Upstream Product Downtream information
There are 140 suppliers who can provide 5-{[2-(2-butoxyethoxy)ethoxy]methyl}-6-propyl-1,3-benzodioxole - 1,1'-(2,2,2-trichloroethane-1,1-diyl)bis(4-chlorobenzene) (1:1) with CAS No. 2321-07-5
Business Type:
Factory Supply Fluorescein
Factory Supply Fluorescein
  • FOB Price:0.1 USD/Kilogram 
  • Min.Order:1 Kilogram 
  • Supply Ability:2000 Metric Ton/Year 
  • Appearance:solid or liquid ( refer to COA) 
  • Purity:99.90% 
  • Packaging:25kgs/fiber drum or 200kgs/drum 
  • Usage:upon client's application 
  • Brand:Amitychem 
  • Description:Amitychem Corporation manufacture and supply Fluorescein with with high quality, low price and bulk supply. We have been focusing on the research and production of concrete chemicals for 14+ years. Our product quality has ISO, SGS, CQC,FAMI-QS, etc. Cetificate...
  • Updatetime:Mar 09 2021 
  • FOB Price:1 USD/Kilogram 
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  • Appearance:liquid or solid 
  • Purity:95%, 99% 
  • Packaging:clients requirement 
  • Usage:raw material used in Synthesis 
  • Brand:Dayang 
  • Description:Name: Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,3',6'-dihydroxy- Synonyms: Fluorescein(8CI);3,6-Dihydroxyspiro[xanthene-9,3'-phthalide];3',6'-Fluorandiol;Benzoic acid,2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)-;C.I. 45350:1;D and C Yellow No. 7;3',6'-Dihydroxy-...
  • Updatetime:Dec 20 2019 
  • FOB Price:1 USD/Kilogram 
  • Min.Order:10 Gram 
  • Supply Ability:1 Metric Ton/Month 
  • Appearance:Orange-red Crystalline Powder 
  • Purity:/ 
  • Packaging:10g, 100g, 500g, 1kg, 5kg, 25kg 
  • Usage:It is used as an indicator or dye or intermediate of Merbromin. 
  • Description:Properties Appearance: Orange-red Crystalline Powder Density:
  • Updatetime:Jun 22 2016 
  • Min.Order:100 Kilogram 
  • Supply Ability:100 Metric Ton/Year 
  • Appearance:Orange-red crystals 
  • Purity:AR 
  • Packaging:according to the customer request 
  • Usage:adsorption indicator 
  • Brand:MOSINTER 
  • Description:Item Index
  • Updatetime:Jan 14 2019 
Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,3',6'-dihydroxy- CAS 2321-07-5
  • FOB Price:1 USD/Gram 
  • Min.Order:1 Gram 
  • Supply Ability:100 Kilogram/Day 
  • Appearance:orange-red crystalline powder 
  • Purity:99% 
  • Packaging:100g/ bag, 2 kg/ bag, 25kg/ carton or as required 
  • Usage:Pharmaceutical Raw materials 
  • Brand:XinRunde 
  • Description:Name: Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,3',6'-dihydroxy- Synonyms: Fluorescein(8CI);3,6-Dihydroxyspiro[xanthene-9,3'-phthalide];3',6'-Fluorandiol;Benzoic acid,2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)-;C.I. 45350:1;D and C Yellow No. 7;3',6'-Dihydroxy-...
  • Updatetime:Mar 26 2019 
  • FOB Price:1 USD/Kilogram 
  • Min.Order:25kg Kilogram 
  • Supply Ability:1000kg Kilogram/Day 
  • Appearance:Conventional appearance 
  • Purity:98% 
  • Packaging:as required 
  • Usage:Conventional use 
  • Brand:coreychem 
  • Description:AD68 Coreychem focus on high complex new type intermediates and fine chemical custom synthesis,scale-up production and rare chemicals trade.Product category including Intermediates&API,Catalyst and Electronic Chemicals.Covering 811 square meters R&D center,wit...
  • Updatetime:May 21 2019 
High purity Fluorescein 2321-07-5 in stock immediately delivery good supplier
High purity Fluorescein 2321-07-5 in stock immediately deliv...
  • FOB Price:1 USD/Kilogram 
  • Min.Order:1 Kilogram 
  • Supply Ability:10000 Kilogram/Day 
  • Appearance:Powder 
  • Purity:99% 
  • Packaging:25kg/drum 
  • Description:Superiority about us
  • Updatetime:Feb 26 2019 
  • FOB Price:59 USD/Kilogram 
  • Min.Order:500 Kilogram 
  • Supply Ability:1000 Kilogram/Month 
  • Packaging:25kg/fiber drum 
  • Brand:GW 
  • Description:Specification Name of Index Index (assay and impurities %)
  • Updatetime:Jun 06 2017 
  • Min.Order:0.1 Kilogram 
  • Supply Ability:1000 Kilogram/Month 
  • Packaging:20kg/fibre drum 
  • Usage:Chemicals indicator 
  • Brand:Kemi-Works 
  • Description:Product Name:Fluorescein Cas No.:2321-07-5 Molecular Formula:C20H12O5 Molecular Weight:332.31 Maximum absorption wave-length λ(
  • Updatetime:Dec 28 2015 
Fluorescein 2321-07-5 supplier
Fluorescein 2321-07-5 supplier
  • Min.Order:1 Milligram 
  • Supply Ability:100 Metric Ton/Year 
  • Appearance:powder 
  • Packaging:as your required 
  • Description:Superiority nanjing sunsure chemical technology co., ltd., established in 2009, has expanded a compositive entity from initially only as a small manufacturer. the company dedicated to the development, production and marketing of chemicals. sunsure covers whole...
  • Updatetime:Feb 25 2019 
  • Appearance:contact us for more details about Fluorescein, CAS:2321-07-5 
  • Purity:contact us for more details about Fluorescein, CAS:2321-07-5 
  • Packaging:Glass bottle in aluminum foil bag, from mg scale to kg scale 
  • Usage:Chemicals, pharmaceutical research, pharmaceutical intermediates, reagents 
  • Brand:FINETECH 
  • Description:FINETECH INDUSTRY LIMITED is a LONDON based CRO company providing drug discovery & development services to worldwide clients. FINETECH INDUSTRY LIMITED supplies the Fluorescein, CAS:2321-07-5 with the most competitive price and the best quality. We can offer e...
  • Updatetime:Nov 21 2018 
  • Min.Order:1 Kilogram 
  • Supply Ability:100 Metric Ton/Year 
  • Purity:99 
  • Packaging:According to your demand 
  • Description:Fluorescein(8CI); 3,6-Dihydroxyspiro[xanthene-9,3'-phthalide]; 3',6'-Dihydroxyfluoran;3',6'-Fluorandiol; 9-(o-Carboxyphenyl)-6-hydroxy-3-isoxanthenone; Benzoic acid,2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)-; C.I. 45350:1; C.I. Solvent Yellow 94; Dand C Yellow No. 7...
  • Updatetime:Nov 21 2018 
  • Description:Zhejiang Kaili Industrial Co., Ltd. is collect Science, Industrial and Trade together for a comprehensive high-tech entities. We are mainly engaged in the research, development, production and sales of APIs and pharmaceutical intermediates.
  • Updatetime:Aug 02 2016 
  • Description:Fluorescein IND 25g×20
  • Updatetime:Feb 13 2015 
  • Updatetime:Nov 13 2010 
  • FOB Price:1 USD/Metric Ton 
  • Min.Order:10 Metric Ton 
  • Supply Ability:10000 Metric Ton/Year 
  • Appearance:white powder 
  • Purity:99.8% 
  • Packaging:Aluminum foil bag 
  • Description:Superiority we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and development production of reagent tens of thousands of species. our aim is quality strives for the survival....
  • Updatetime:Feb 23 2019 
  • FOB Price:1000 USD/Kilogram 
  • Min.Order:1 Gram 
  • Supply Ability:1000 Kilogram/Year 
  • Brand:km-318 
  • Description:Product name:Fluorescein CAS No.2321-07-5 MF:C20H12O5 MW: 332.31 Maximum absorption wave-length λ(PH8.0):490-493 nm Mass-absorption coefficient λ(PH8.0)L/cm·g: 200 min. Ethanol soluble test: qualified
  • Updatetime:Jul 30 2013 
  • Min.Order:1 Kilogram 
  • Supply Ability:1 Metric Ton/Week 
  • Appearance:orange-red crystalline powder 
  • Purity:99% 
  • Packaging:As your needed 
  • Description:Superiority 1. high quality with competitive price: Details Molecular Formula:C20H12O5 Transportation:Air express delivery or sea transporta... Storage:Store in dry, dark and ventilated plac... Keywords:Yellow fluorescein,Fluorescein supplier,Fluorescein made ...
  • Updatetime:Feb 23 2019 
  • Min.Order:50 Gram 
  • Supply Ability:500 Kilogram/Month 
  • Appearance:Orange-red Crystalline Powder 
  • Packaging:500g/ 1kg, 5kg, 10kg, 25kg/ drum 
  • Description:Superiority 1. good quality 2. fast delivery 3. reliable after-sales service Details cas no.: 2321-07-5 product code:
  • Updatetime:Feb 23 2019 
  • Min.Order:0 Metric Ton 
  • Supply Ability:Metric Ton/Day 
  • Purity:98% 
  • Description:Superiority proname: fluorescein casno: 2321-07-5
  • Updatetime:Feb 23 2019 
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