PRODUCT
Rhodamine B CAS 81-88-9
CAS:81-88-9 | H2MgO2 |MW：479.01 | EINECS NO：201-383-9
Payment: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
Transporta: Ocean, Land,Air, DHL，TNT
Port: Shanghai Port, Qingdao Port
Description
Rhodamine B is a chemical compound with a specific structure. Rhodamine is a synthetic alkaline fluorescent dye based on oxanthracene. The molecular system is centered on an oxanthracene-tricyclic system with groups derived from diethylamino or benzoic acids at either end. The rigid p-conjugated planar structure is key to producing extremely strong fluorescence. Physical and optical properties： Rhodamine B comes as a powder that is either green or purple. It is readily soluble in polar solvants such as ethanol, water, and methanol. The solution has a bright blue-red color with a strong orange-red fluorescence. It has a high fluorescence yield and is sensitive to excitation lights (such as the green light). Fluorescence intensity is linearly related to concentration in a given range. The maximum wavelength of Rhodamine B absorption is approximately 554 nm and its maximum wavelength emission is approximately 627 nm. Rhodamine B’s color and fluorescence are sensitive to pH. It exhibits strong fluorescence in acidic conditions. Rhodamine B chemical properties： Rhodamine B is a cationic color that exists in an aqueous positive-charged solution. This makes it easier to bind or adsorb to surfaces with a negative charge. It is photostable, but can decompose in strong acid, alkali or oxidation conditions. Rhodamine B’s carboxyl groups and amino groups allow for chemical modification. This can be used to create fluorescent probes based on Rhodamine. Production and key characteristics： It is produced industrially through the condensation reaction of phthalic anhydride and m-diethylaminophenol. Rhodamine B’s main value is its fluorescence performance. It has a high molar absorbtivity, a bright fluorescence, and excellent photostability. It is therefore considered one of the gold standards in fluorescent labeling. Take precautions when using this product： Rhodamine B is widely used for scientific research and in industry. However, it has a certain level of toxicity and carcinogenicity. Illegally using consumer goods in food, cosmetics or with direct contact to the body is therefore strictly prohibited. It is banned and tested in many countries. Chemical safety operating procedures are also required when using chemicals in laboratories.
Product Images & Packaging
Product Parameters
| Rhodamine B Chemical Properties |
| Melting point | 210-211 (dec.)(lit.) |
| bulk density | 250kg/m3 |
| density | 0.79 g/mL at 20 °C |
| refractive index | 1.6500 (estimate) |
| Fp | 12 °C |
| storage temp. | room temp |
| solubility | H2O: soluble1mg/mL |
| form | Solid |
| Colour Index | 45170 |
| color | Green |
| PH | 3-4 (10g/l, H2O, 20℃) |
| Water Solubility | SOLUBLE |
| ε(extinction coefficient) | 104500-115800 at 542-554nm in methanol |
| Merck | 14,8183 |
| BRN | 4119648 |
The application of Rhodamine B
Usage 1
Rhodamine B, which is fat-soluble, is used primarily for industrial dyeing. Rhodamine has a strong fluorescence when in solution. It is used in laboratories as a cell-fluorescent dye, for colored glass, and to make specialty fireworks and firecrackers. Rhodamine B was also used as a food colorant and seasoning agent, but after tests proved that it can cause cancer, the use of this dye for food coloring is prohibited.
Usage 2
Rhodamine B is mainly used in the papermaking industry for wax printing paper, typing paper, glossy paper, etc; Reacting with phosphotungstomolybdic acid to form a lake, used for manufacturing pigments such as paints and paintings; It can also be used for dyeing fabrics such as acrylic, linen, silk, as well as straw and leather products.
Usage 3
Rhodamine B can be used to dye paper, acrylic fibers, leather, feathers and silk. It is also used as a food analysis reagent and for certain metals.
Usage 4
Rhodamine B can be used to dye paper, acrylic, leather, feathers and silk. It is also used as a food analysis reagent and for certain metals.
Usage 5
Rhodamine B can be used as a biological staining agent and an adsorption marker
Usage 6
Rhodamine B can be used to dye paper, acrylic fibers, wooden products, acrylic fibre, and paint.
Usage 7
RhodamineRhodamine B
Usage 8
Colorimetric determinations of cadmium, manganese, cobalt etc., fluorescence determination. Redox indicators can be used to precipitate tin and other metals such as antimony, tantalum, niobium. Biological dyes. Series laser dyes.
Use 9
Rhodamine B is used to dye silk, acrylic fibre, and wool. It has a sunfastness of 2 or 3 levels. It can be used to dye cotton fibers using tannins. However, it has a poor sunfastness. Also used to color leather, paper and straw.
Use 10
Rhodamine B is used primarily for dyeing paper, cosmetics and silk. It can also be used to make color lakes. Use for coloring wax paper, typing papers, glossy papers, etc. in the paper industry; Reacts with phosphotungstomolybdic acid to form a lake.
Rhodamine B 's Procurement Guide
Procurement Guidelines
1. Sample Policy
We can provide a 2-3g free trial package (shipping fee required)
2. Batch procurement
Packaging: 25kg/bag; 220kg/barrel; Special packaging according to your needs
MOQ：1kg
3. Customized services
Concentration customization (90% -99%)
Paeonol’s outsourcing services
FAQ
Yes, we have our own factory called ” ZhiShang Industry Group “
Yes, we have GMP certificate for some products, and we can provide DMF as well.
-Quality you require, eg. Assay, Purity, or single impurity
-Quantity you need
-Standard you want, such as USP, EP, JP etc.
Escrow and T/T in advance are highly recommended. We can accept Western Union, Money Gram and Paypal as well.
For sample(less than 1kg), in about 3 working days after payment; for larger orders (more than 1kg), in about 7 working days after payment.
For samples, we will send by TNT/DHL/FEDEX/UPS express, usually it takes about 3-5 day.
Related References
Manufacturer of Rhodamine B
Achievements
Advantage
Service
FAQ
Advice on Shipping
Achievements
Zhishang Bio is based in Shandong, serves the whole country, faces the world, and is determined to become an excellent supplier and service provider in the chemical industry.
As a top manufacturer of cosmetic raw materials, disinfectants, flavors and fragrances in China, we are committed to producing high-quality products and have won high praise from customers all over the world.
In the next 10 years or even longer, Zhishang Bio will always adhere to the tenet of quality first and reputation first, and devote itself to providing customers with thoughtful and perfect services.
As a professional Rhodamine B manufacturer, Zhi shang Bio has served more than 6,000 customers around the world. Because of our high-quality products and professional services, we have won high praise from most of our customers.
Advantage
Zhishang Bio is a professional enterprise engaged in the research and development, production, and sales of chemical raw materials. It has a strong supply chain system and strict quality control standards to ensure the provision of high-quality products with high purity and stability to customers.
Zhishang Bio’s core strength is its independent research and design capabilities. It has advanced production equipment, testing laboratories and can customize chemical raw materials to meet the market demands. This includes pharmaceuticals, electronic, coatings and agricultural applications.
Zhishang Bio’s supply chain management is based on long-term relationships with domestic and international suppliers of high quality to guarantee a stable supply, optimize logistic systems, and achieve efficient distribution. This helps reduce the cost of customer purchases.
We adhere to international environmental standards and we also adhere to the concept that environmental protection and safety production are important. All production processes must comply with these standards in order to guarantee that our products will be green and sustainable.
With a professional technical team and comprehensive after-sales service, Zhishang Bio can provide customers with precise technical support, solve application problems, and help customers enhance product competitiveness.
We are always customer-oriented and committed to becoming a trusted chemical raw material partner.
Service
Zhishang Biography is dedicated to using clients extensive and expert service, including chemical raw material. The customers will certainly receive hassle-free, efficient and one-stop options.
1. Custom-made Supply Solutions
Zhishang Bio provides tailored services for clients in the chemical basic material sector, including special bit dimension, solvent residue control, stability optimizations and more. Clients can personalize their services to satisfy details requirements in industries such as drugs, electronic devices, and finishings.
2. Strict quality assurance
Zhishang Bio utilizes advanced screening equipment and stringent quality examination procedures, in addition to various other files, to guarantee that every batch of products is certified with international criteria such ISO GMP, REACH, and so on. Customers are also given with full quality records and conformity documents.
The supply chain is secure
Zhishang Bio has actually established lasting calculated collaborations with worldwide makers of top notch raw materials to make certain a secure supply, maximize the storage facility and logistics system, and assistance both small-scale examinations and large orders. It adjusted to the changing requirements of clients by responding flexibly to these changes.
4. Technical support
Zhishang Bio’s technical group can offer suggestions on product applications, formula optimization and analysis of industry patterns to aid clients fix technological troubles during production and boost item efficiency.
5. Efficient after-sales service
Zhishang Bio provides complete monitoring, reacts to client requests and delivers promptly. This will certainly make certain customer complete satisfaction.
Zhishang Biography intends to help consumers expand their service by providing the very best solutions and chemical resources.
FAQ
DO YOU ACCEPT SAMPLE ORDER?
We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.
WHAT’S YOUR MOQ?
Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.
IS THERE A DISCOUNT?
Different quantity has different discount.
HOW TO CONFIRM WHETHER THE PRODUCT QUALITY MEETS OUR NEEDS BEFORE PLACING AN ORDER?
You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.
DO YOU SUPPLY PRODUCT REPORT?
Yes. We’ll give you product analysis report before shipping.
LEARN MORE ABOUT US
Shandong Look Chemical
Advice on Shipping
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
Company Info
Zhishang Bio company in China that exports chemicals, Cosmetic raw materials, and Intermediates for over 70 countries now.
And a range of 50,000 products with the best quality and competitive price to meet your different purchasing needs.
The company integrates research and development, production, and trade, with a modern production base, advanced testing equipment, and an experienced technical team to ensure that products reach industry-leading levels in purity, stability, and environmental friendliness.
