CAS No 518-47-8 Fluorescein Sodium Salt Powder Used as Fluorescent Tracer

• Type: Pharmaceutical Intermediates
• Appearance: Powder
• Quality: Refined
• CAS No.: 518-47-8
• Formula: C20h13nao5
• Einecs: 208-253-0
• Model NO.: YB057
• Colour: Rust-Orange
• Samples: Available
• Purity: 99%
• Certificates: ISO9001/SGS
• Package: 1kg/5kg/10kg/25kg
• Stocks: in Stock
• Lead Time: 5-7 Working Days
• Shelf Life: 2-3 Years
• Site Audit: Available
• Transport: Air/Express/Sea
• MOQ: 10g
• Transport Package: Drum/Bottle/Bags
• Specification: Dye content 60%
• Trademark: Yunbang OEM
• Origin: China

Product Description

CAS NO 518-47-8 Fluorescein sodium salt powder used as fluorescent tracer
 

Company Informations

Hunan Yunbang Pharmaceutical Co., Ltd. (Yunbangpharm) located in Changsha High-tech Industrial Park, Hunan. It is a high-tech enterprise specializing in the research and development, production and sales of Pharmaceutical raw materials, Pharmaceutical intermediates(API) and Fine chemicals. Based in China, Yunbangpharm has been providing suitable solutions for many domestic,foreign pharmaceutical companies and traders. Excellent quality, good reputation and authentic price have won the praise of the majority of customers.

The company adheres to the corporate tenet of "We do not produce medicines, but help pharmaceutical companies make good medicines".

We can provide customers with customized processing, research and development services;
We can develop high-end Pharmaceutical and chemical products with high technical difficulties,high barriers and unique production processes;
We can provide 100 grams Grade, kilograms, and hundred kilograms of raw material pharmaceutical intermediates and other products.
We can perform -100°C to 300°C reaction.

R&D strength is the company's core competitiveness.Yunbangpharm has maintains a good cooperation relationship with many Universities and Research institutes locally, which can quickly transform R&D results into industrial production.

Our goal : To achieve the integrated upgrade of Pharmaceutical intermediates, raw materials and high-end chemical products, adhere to "serving pharmaceutical companies, creating our brands" to provide customers with high-quality and low-cost pharmaceutical and chemical products, realizing Win-win cooperation and common development.
 

Product Description

General description

Fluorescein is a xanthene dye and is a common labeling agent in biology.

Application

Fluorescein sodium salt has been used as a solute to study microvessel permeability. It has been used as a test molecule to study blood barrier penetration.

Water soluble fluorescent dye used in permeability and vascular perfusion studies due to its small molecular radius. Sodium fluorescein is used as a fluorescent tracer to study blood-brain barrier (BBB) and blood-spinal cord barrier (BSCB) permeability in rodent models.The dye was used as a probe substrate in the study of organic anion transporting polypeptide (OATP) mediated drug transport in hepatocytes. Sodium fluorescein was also used to monitor in situ solute transportation into bone through fluorescence recovery after photobleaching (FRAP).

 

FAQ

1:Can I get some samples before bulk order?
A: Most products provide free samples, but the shipping cost be paid by customers.

2: What's your MOQ?
A: We can have a discussion.

3: Which kind of payment terms do you accept?
A: PI will be sent first after confirmation of order,enclosed our bank information.Payment by T/T, Western Union,D/P, ETC.

4.How to place an order?
A: You can contact me through Trademanager, WhatsApp, Email and other contact methods, tell me the product and quantity you need, and then we will give you a quote.

5:How about your delivery time?
A: Generally, it will take 3 to 5 days after receiving your advance payment.

6:How do you treat quality complaint?
A: First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
 

Our Advantages

1. 90days quality guarantee for exchange.

2. For each batch order extracts, we will attach a factory Inspection Report with the goods delivery , including the BatchNo/ Date/ Test index ects; also will keep the archived extracts to ensure received by customers are the same each time.

3. Our team of experienced professionals are available online 24 hours a day to answer any questions and provide guidance on product usage and maintenance.
 

Product analysis

Product Name:	Fluorescein Sodium
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:	C20H13NaO5
MW:	356.31
EINECS:	208-253-0
Product Categories:	Fluorescent;Xanthene;Intermediates of Dyes and Pigments;Dyes and Pigments;Pharmaceutical intermediates;518-47-8
Mol File:	518-47-8.mol

Melting point	320 °C
density	0.579[at 20ºC]
vapor pressure	2.133hPa
storage temp.	Store at +5°C to +30°C.
solubility	H2O: soluble1mg/mL
form	Powder
pka	2.2, 4.4, 6.7(at 25ºC)
Colour Index	45350
color	Rust-orange
PH Range	Pink uorescence (4.0) to green uorescence (6.0)
PH	8.3 (10g/l, H2O, 20ºC)
Odor	Odorless
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
LogP	0.34
CAS DataBase Reference	518-47-8(CAS DataBase Reference)
EPA Substance Registry System	Fluorescein, disodium salt (518-47-8)

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
Hazardous Substances Data	518-47-8(Hazardous Substances Data)
Toxicity	LD50 in mice, rats (mg/kg): 4738, 6721 orally (Yankel, Loux)

 

 

 

 

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