Product Details
| Product Name: Rhodamine B | CAS No.: 81-88-9 |
| EC-No.: 201-383-9 | Min. Order: 1KG |
| Purity: 98%min | Supply Ability: 30tons/month |
| Release date: 2026/07/17 |
Rhodamine B Cas 81-88-9
Product Description
Product Name: Rhodamine B
Synonyms: Basic Violet 10
CAS No. 81-88-9
M.F.: C28H31ClN2O3
M.W.: 479.01
EINECS: 201-383-9
Specifications
| Item | Specification |
| Appearance | Green Powder |
| Assay | ≥98.0% |
| Density | 0.79 g/mL at 20 °C |
| Melting Point | 210-211 (dec.)(lit.) |
Welcome to contact us to get complete COA.
Rhodamine B is a highly versatile and brilliant organic fluorescent dye belonging to the xanthene class.
Here are its core characteristics and main selling points (uses):
What is Rhodamine B?
Appearance & Properties: It typically appears as a red-to-violet crystalline powder. It is highly soluble in water and ethanol.
The "Magic" Fluorescence: Its most defining feature is its intense fluorescence. When dissolved in water, it forms a blue-red solution that exhibits a strong blue-red fluorescence upon dilution. In alcohol solutions, it emits a distinct red fluorescence. Its maximum absorption wavelength is around 552 nm, with a maximum fluorescence emission around 610 nm.
Key Uses & Selling Points
Due to its exceptional brightness, photostability, and ease of chemical modification, Rhodamine B has several highly valuable applications:
Biological Staining & Fluorescent Tracer: It is widely used as a fluorescent staining agent in laboratories to visualize cells and tissues under a microscope. Because it can be covalently bonded to other molecules (like polymers, lipids, or proteins), it serves as an excellent tracer for tracking drug delivery systems, observing nanoparticle uptake by cells, and studying membrane dynamics in biomedical research.
Laser Dye: Thanks to its strong fluorescence and high quantum yield, Rhodamine B is frequently used as an active medium in tunable dye lasers, which are essential tools in spectroscopy and material science.
Industrial Dye: It is heavily utilized in various industries for coloring materials such as textiles (cotton, silk, wool), leather, paper (glossy papers), paints, and even colored glass. It provides vibrant and lasting pink/red hues.
Analytical Reagent: In chemistry, it acts as a sensitive reagent for the (photometric determination) of specific elements like gold, gallium, mercury, and antimony. It also serves as an oxidation-reduction indicator in titrations.
Safety Note: While incredibly useful in scientific research and industry, Rhodamine B poses significant health risks. It is suspected to be carcinogenic (listed as a Group 3 carcinogen by the WHO's IARC) and can cause reproductive toxicity. Consequently, it is strictly prohibited from being used as a food additive or in cosmetics intended for eyes, lips, and oral cavities. Despite this, illegal use in foods like chili powder has occurred due to its vibrant color and low cost. It must be handled strictly in professional settings with appropriate protective equipment.
Packing & Shipping



FAQ
1. Do you have stock?
As we know, most customers prefer stock, so we will try to keep stock for some products.
2. Could you please provide some samples?
In order to facilitate transaction, it's my pleasure to provide you samples.
3. How should I pay?
We accept various payment terms such as L/C,T/T, Western Union and Money Gram.
4. Is there a discount?
Different quantity has different discount.
5.What's your MOQ?
Different products have different MOQ, such as:
1).Peptide products, the MOQ is 1 gram level
2).Liquid products, the MOQ is usually 50-100ML
3).API, the MOQ is 1KG
4).Intermediate products and conventional product, the MOQ is 1KG; custom-tailored products, the MOQ depends on the production process.
5).Food additives and vitamin, the MOQ is usually one package: such as Vitamin C is 25KG / drum, Vitamin E oil or Vitamin A oil is 5KG/bag;Vitamin E powder or Vitamin A powder is 20KG / cartons.
6).Agrochemical , the MOQ is 1KG, except preparations.
6.How do we take the quality complaint ?
First of all, our quality control will reduce the quality issue to near zero. If there is a quality problem caused by us, we will send you free goods for replacement or compensate your loss.
Company Information
Company profile
Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical & its intermediates, Food/Feed additives, Fine chemicals in distributing the products of our own company and affiliated enterprises, are the members of Hubei E-commerce Chamber.
Our company has professional persons who major in chemical R&D and sicentific management, supply fine chemical products with high quality and close service, also supply custom-tailored products according to our clients’ requirement.
We have a positive and self-motivated management work team with a common philosophy, caring and commitment through teamwork, our team strive to achieve success in delighting our clients and ourselves.
Since Wuhan Fortuna Chemical Co., Ltd founded, we continuously innovate our products and improve our service, sales network. Hence, we initiate the first sale mode on net in China, which is the retail trade of small package bring along wholesale of diversified management modes. Our products are exported widely to South Korea, Vietnam, Australia, Europe and South America, highly recommended by our clients.
We insist on the management creed “Market is our compass, Quality is our life, Credit is our soul”. Clients’ trust is our forward powder, their satisfaction is our struggling goal.
Factory and Lab show


Company Information
Name:Wuhan Fortuna Chemical Co.,Ltd
Category:Others
Trade Category: Trading Company
Employees: 11 - 50 People
Address: Room 2015, No.2 Building, Kaixin Mansion No.107
Company Information: Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical and Intermediates, Food and Feed additives, Fine chemicals,Biochemical and Reagent, which is the members of Hubei E-commerce Chamber.
Our company has professional persons who major in chemical R&D and sicentific management, supply fine chemical products with high quality and close service, also supply custom-tailored products according to our clients' requirement.
We have a positive and self-motivated management work team with a common philosophy, caring and commitment through teamwork, our team strive to achieve success in delighting our clients and ourselves.
Since Wuhan Fortuna Chemical Co., Ltd founded, we continuously innovate our products and improve our service, sales network. Hence, we initiate the first sale mode on net in China, which is the retail trade of small package bring along wholesale of diversified management modes. Our products are exported widely to South Korea, Vietnam, Australia, Europe and South America, highly recommended by our clients.We insist on the management creed “Market is our compass, Quality is our life, Credit is our soul”. Clients’ trust is our forward power, their satisfaction is our struggling goal.
Wuhan Fortuna Chemical Co.,Ltd is a professional manufacturer which provide Azaperone with good quality and best price, welcome to contact us to get COA/TDS/MSDS of Azaperone.
Company Profile Introduction
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- Since: 2006-04-03
- Address: Room 2015, No.2 Building Kaixin Mansion, No.107 Jinqiao Ave, Wuhan, China
info@fortunachem.com

China