Audited Supplier
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.
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.
General description
Application
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.
| Product Name: | EOSIN B |
| Synonyms: | 4,5-DIBROMO-2,7-DINITROFLUORESCEIN;4',5'-DIBROMO-2',7'-DINITROFLUORESCEIN DISODIUM SALT;4,5-DIBROMO-2,7-DINITROFLUORESCEIN DISODIUM SALT;ACID RED 91;EOSIN B;EOSIN BA OR BN;EOSIN B DISODIUM SALT;EOSIN BLUE SHADE |
| CAS: | 56360-46-4 |
| MF: | C20H8Br2N2O9 |
| MW: | 580.09 |
| EINECS: | 208-943-1 |
| Product Categories: | Hematology and Histology;Hematology Stains |
| Mol File: | 56360-46-4.mol |
| EOSIN B Chemical Properties |
| Melting point | 275 °C (dec.)(lit.) |
| Boiling point | 663.6±55.0 °C(Predicted) |
| density | 2.27±0.1 g/cm3(Predicted) |
| solubility | soluble |
| pka | 5.98±0.20(Predicted) |
| form | Powder |
| Colour Index | 45400 |
| color | Orange |
| PH Range | 1.4(colourless)-2.4(pink fluoresc.) |
| CAS DataBase Reference | 56360-46-4 |
| Safety Information |
| Hazard Codes | Xn |
| Risk Statements | 22-21/22 |
| Safety Statements | 22-24/25-36/37 |
| WGK Germany | 3 |
| HS Code | 32041200 |
| EOSIN B Usage And Synthesis |
| Chemical Properties | orange powder |
| Definition | ChEBI: A C-nitro compound which consists of a fluorescein skeleton substituted by bromo groups at positions 4 and 5 and nitro groups at positions 2 and 7. |
