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Fluorescein CAS 2321-07-5 Eosin 2- (6-Hydroxy-3-oxo-(3H)-xanthen-9-yl) Benzoic Acid1
Pigment DyeFluorescein2321-07-5
Ningbo Surest Chemical Co., Ltd.
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Product Description Product Description NameFluoresceinSynonymsEosin; 2-(6-Hydroxy-3-oxo-(3H)-xanthen-9-yl)benzoic acid Molecular Structure Molecular FormulaC20H12O5Molecular Weight332.31CAS Registry Number2321-07-5EINECS219-031-8 PropertiesMelting point314-316 oCWater solubilityinsoluble Chemical Property/Description: Appearance: orange or light yellowish red to red crystalline powder. Main Uses: 1.Chemical and biological analysis. As an indicator and biological stain for chemical analysis, it is used to detect chemical parameters such as metal ions, pH, and the presence and activity of proteins, enzymes, and cell molecules. 2.Medical and ophthalmic diagnosis. It is used in medical imaging to prepare fluorescent dyes to help detect and study biological tissues. In ophthalmic diagnosis, it is used to detect and assess the health of the cornea. 3.Cosmetics and household products. Used as a colorant for cosmetics and cleaners, and as a fluorescent indicator in household products.4. Fluorescent coatings and plastics. In textile, plastics, rubber and other industries for the preparation of fluorescent coatings and fluorescent plastics.5.Fluorescent indicator. It is used to detect leaks, sources of pollution, etc., and as an end-point indicator in chemical analysis.6. Fluorescence microscopy and flow cytometry. Used in cell imaging and flow cytometry analysis to detect and visualize the presence of markers or marker molecules.7 Fluorescence photometer. In biochemical analysis, it is used to quantify live organisms or low levels of bacterial contamination.8.Luciferase reaction. In biochemical research, after forming a complex with ATP, it binds to luciferase and is used to detect the presence and activity of proteins, enzymes and cell molecules.9.Fluorescent lighting. In fluorescent lamps and white light, ultraviolet or blue light is converted to visible light, improving luminaires brightness and efficiency, and saving energy.10.Gemology and mineralogy. It is used to identify and evaluate the quality of gemstones and minerals, as well as to detect the authenticity of artifacts and documents. Printing anti-counterfeiting technology.11.It is used to make invisible ink, watermark, bar code, etc., to increase the security and identification of printed matter. 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.
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