PRODUCT
Acid Red 87 CAS 548-26-5
CAS:548-26-5 | C20H6Br4Na2O5 |MW：647.89 | EINECS NO：241-409-6
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
Acid Red 87, also called Ink Red A or Weakly Acid Red A is a great acid dye. It is a red powder that is easily soluble. It forms a yellow-green fluorescence when dissolved in ethanol and water.
Acid Red 87 becomes yellow when exposed with concentrated sulfuric acid. After dilution it turns into a light yellow precipitate. Acid Red 87 is slightly blue when stained by copper ions. It becomes dark blue when stained by iron ions.
The name sodium fluorescein is more commonly known as Acid Red 87. This is a type xanthene color with unique physical properties. Its strong fluorescence is the most notable physical property. It appears in the solid state as an orange-red or reddish-brown amorphous or crystalline powder. This indicates that its molecular structures are very effective at absorbing specific wavelengths of visible light.
Acid Red 87 dissolves easily in water and forms a solution that is clear with a strong yellow-green fluorescence. The aqueous color changes from yellow-pink depending on concentration.
It is also soluble in polar organic solvents like ethanol but almost insoluble in nonpolar solvents. This characteristic of solubility is due to the sodium carboxylate and polar group hydroxyl in the molecular structures, which makes it easy to form hydrogen bond with water molecules.
Acid Red 87 also has a relatively low photostability. Long-term exposure to ultraviolet light can lead to photochemical degradation, resulting in a gradual fading of the fluorescence. It is therefore recommended that you store the solution in darkness.
Acid Red 87’s physical state is also affected by the pH value. The ionization of Acid Red 87 in water changes as pH increases, and this in turn influences its fluorescence spectrum. Fluorescence intensity is highest under alkaline conditions.
Product Images & Packaging
Product Parameters
| Acid Red 87 Chemical Properties |
| storage temp. | Amber Vial, -20°C Freezer, Under inert atmosphere |
| solubility | Methanol (Slightly), Water (Slightly) |
| form | Solid |
| color | Red to Dark Red |
| Stability: | Hygroscopic |
| CAS DataBase Reference | 548-26-5 |
| EPA Substance Registry System | C.I. Acid Red 87 (548-26-5) |
The application of Acid Red 87
Acid Red 87. The fluorescence properties of sodium fluorescein are almost exclusively responsible for its value. It absorbs high-energy ultraviolet or blue light in an aqueous solvent and releases low-energy fluorescence that is highly sensitive to the human eyes.
1. Core applications of medical diagnosis
This is the classic and most important application of Acid Red 87. It is mainly focused on the diagnostic of ophthalmic or vascular disease.
Acid Red 87 is used in Acid-Red Angiography, which is a non-replaceable application. Fluorescein sodium is circulated throughout the blood vessels of the body after intravenous administration. Specialized photography equipment can record and observe the real-time dynamics of dyes flowing through retinal veins, arteries and capillaries by using certain wavelengths of blue lights to irradiate a fundus.
Healthy blood vessel walls do not permit the dye to escape. The dye will leak out of the damaged blood vessel in cases such as macular degeneration or diabetes retinopathy. It may also form bright fluorescent spots when there is inflammation, vascular obstruction, or other abnormalities. This exam is the best way to diagnose blood circulation disorders, related diseases of retina and choroid and other abnormalities. It is considered one of the gold standards for ophthalmic diagnostics.
Acid Red 87 can also be used in ophthalmology to assess damage to the cornea and conjunctiva. It has been used in ophthalmology to measure blood circulation, and in surgery such as cholecystectomy to identify anatomical structures of the bile canal and to prevent accidental injury.
2.Life Science Research and Testing Tools
Acid Red 87, a sensitive and safe tracer and marker is used widely in scientific research.
Acid Red 87, which is highly water-soluble, has a high detection sensitivity and is relatively harmless to the environment. It can be used to study surface water mixing and diffusion, as well as to determine groundwater flow directions, velocity and leakage pathways.
A fluorescence meter can accurately monitor the concentration of dye upstream and reveal the pattern of flow.
Researchers used Acid Red 87 in the lab to measure the permeability and intercellular communication of cell membranes. They also used it as a fluorescent indicator to monitor the flow and distribution liquids within complex systems. It is a useful tool to study the transmembrane transportation of substances because it cannot penetrate the entire cell membrane.
Acid Red 87’s fluorescence intensity can be used as a fluorescent marker because it is sensitive to factors like pH and heavy metal ions. In some biological detection experiments it can be used to quantitatively analyze the target substance using specific enzymes that cause fluorescence enhancement or quenching.
3. Marking applications for industry and public safety
Acid Red 87, a bright fluorescent red color, is also used in a variety of industrial and public safety products.
Acid Red 87 is a life-saving tool. Small bags of sodium-fluorescein powder are commonly included in aviation rescue kits. If a pilot, crew member, or vessel falls into water, it will dissolve quickly and create a bright yellow-green fluorescent area.
The fluorescence is a stark contrast to the seawater’s blue background, increasing the likelihood of being detected from the air and distant ships. This gives valuable time to rescuers.
Acid Red 87, which has the same fluorescent properties as Acid Red 52 is also used to print anti-counterfeiting documents, receipts and branded goods. Under normal lighting, these markings will appear as pale yellow or not at all. However, under the light of an ultraviolet banknote inspection lamp, the bright green fluorescence is visible.
Acid Red 87 '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 Acid Red 87
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 Acid Red 87 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.
