
PRODUCT

Zhishang BioAcid Violet 43 CAS 4430-18-6
CAS:4430-18-6 | C21H16NNaO6S |MW:433.41 | EINECS NO:224-618-7
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
The Basic Concept and Chemical Essence of Acid Violet 43
Acid Violet 43, It is a classic anthraquinone acid dye. It belongs to sulfonated anthraquinone derivatives in chemical classification, which means that the molecular structure is based on the anthraquinone core and introduces sulfonic acid groups, thereby endowing it with water solubility and acidic dye properties.
The molecule of Acid Violet 43 is a carefully designed equilibrium: the hydrophobic anthraquinone planar structure is responsible for coloration and hydrophobic interactions with fibers, while the hydrophilic sulfonic acid group is responsible for solubility and ionic bonding. This structure determines all of its physical, chemical properties, and application performance.
Physical properties of Acid Violet 43
Acid Violet 43 typically appears commercially in the form of dark green to dark purple powder or granules. This appearance is a complementary color that appears after strongly absorbing specific bands of visible light.
Acid Violet 43 is highly soluble in water. This is the most basic physical property as an acidic dye. The strong hydration ability of sulfonic acid groups enables the formation of molecular level true solutions. At room temperature, it can be formulated into a highly concentrated deep purple solution.
Acid Violet 43 has poor solubility or is insoluble. It may be slightly soluble in highly polar organic solvents such as ethanol and methanol, but it is almost insoluble in most non-polar organic solvents. This solubility characteristic is a direct manifestation of strong polarity and ionic nature.
Acid Violet 43 aqueous solution exhibits characteristic absorption peaks in the visible light region. There is usually a strong and wide absorption band in the range of 540-580 nanometers, which corresponds to its absorption of green yellow light, resulting in a bright blue purple to red purple color for the solution and dye. The exact value of the maximum absorption wavelength will be affected by pH, solvent, and concentration.
Chemical properties of Acid Violet 43
Acid Violet 43 aqueous solution is acidic due to the presence of sulfonic acid groups.
The hydroxyl and amino groups in the molecule give it certain amphiphilic characteristics, but the strong acidity of the sulfonic acid group dominates. Under strong acidic conditions, the amino group will be protonated, and the degree of protonation of the hydroxyl group will also change.
Under alkaline conditions, phenolic hydroxyl groups may deprotonate to form oxygen anions, causing a shift in their absorption spectra and a change in color. This pH dependence is the basis for applications in certain indicators and biological staining techniques.
Product Images & Packaging



Product Parameters
| Acid Violet 43 Chemical Properties |
| density | 0.513[at 20℃] |
| vapor pressure | 0.072Pa |
| storage temp. | Hygroscopic, -20°C Freezer, Under inert atmosphere |
| solubility | Methanol (Slightly), Water (Slightly) |
| Colour Index | 60730 |
| form | Solid |
| color | Dark Purple to Black |
| Water Solubility | 1.708-50.3g/L at 20-28℃ |
| Stability: | Stable for 4 hours in acetone/olive oil (6.05 and 151 mg active dye/ml) and purified water (3.03 and 121 mg active dye/ml) at room temperature, protected from light and under inert gas atmosphere. Deviation from initial value was between – 4 % and 6 % after 4 hours (only tested for Jarocol Violet 43, Batch No. 10130) |
| InChI | InChI=1S/C21H15NO6S.Na.H/c1-11-6-7-14(17(10-11)29(26,27)28)22-15-8-9-16(23)19-18(15)20(24)12-4-2-3-5-13(12)21(19)25;;/h2-10,22-23H,1H3,(H,26,27,28);; |
| InChIKey | GTKIEPUIFBBXJQ-UHFFFAOYSA-M |
The application of Acid Violet 43
Acid Violet 43
Acid Violet 43 is a dye that has many applications beyond textile dyeing. Its importance in biology and industry are even greater.
1. Biomedical staining: the core role
Acid Violet 43 is used in the most unique and irreplaceable way.
Acid Violet 43, a purple dye that is used in the Gram staining process, is an important component of the initial dye. It is usually used in combination with crystal violet or as a substitute/component. In the classic Gram-staining procedure:
Initial staining: A dye solution containing Acid Violet43/Crystal Violet was used to treat the bacterial smear. All bacteria were then stained purple.
Matchmaking: Iodine, dye and iodine are combined to form an insoluble dye-iodine compound in the bacterial cell.
Acid Violet 43 can be decolored with alcohol or Acetone. The dense cell wall and thick peptidoglycan layers of Gram positive bacteria preserve the dye iodine. The cell wall peptidoglycan of Gram-negative bacteria is thin, and it contains large amounts of lipids that are easily dissolved with alcohol. The iodine dye complex is washed away and turns colorless.
Re-staining: Red sand, yellow or magenta to stain Gram negative bacteria.
Acid Violet 43 is used to create an initial purple color which can be stably bound with iodine. The difference in staining strength is what allows us to distinguish between two different types of bacteria. This is the most important and fundamental identification staining technique in microbiology.
Histological and Pathological Staining
It is used to stain certain tissue components such as the amyloid proteins. It can be used in conjunction with Congo red dyes or as part of multi-color staining techniques to help distinguish tissue lesions and identify collagen fibers.
It is used in some formulas for staining blood cells, and as an auxiliary component for Romanoff-based staining. This helps to distinguish different particles of white blood cell.
It is also used in microscopy and cytology techniques.
2. Industrial applications with a special focus
Textile industry:
Acid Violet 43 has a wide range of applications. It is used to dye proteins and polyamide fibers that have amino functional groups, such as nylon, wool, silk or polyester. The sulfonic group of the dye molecule forms an ionic link with the protonated ammonium group on fiber.
Acid Violet 43 is dyeable in an acidic bath to produce a vibrant purple color series. The excellent lightfastness of this dye makes it ideal for curtains and fabrics used in automotive interiors that need anti-fading properties. You can also use it for leather dyeing.
Special Functional Materials and Products
They can be used as a variety of staining solutions or indicators in biological experiments.
Acid Violet 43 can be used to make water-based inks in specific colors such as marker inks, inkjet printers, etc.
Paper coloring is used to produce colored paper and paper products.
Laboratory dyes are used in laboratories as markers, tracers or standards for light absorption.
Acid Violet 43 is not a preferred coloring agent in food, cosmetics and pharmaceuticals due to its high cost and pH sensitivity. It may be used in non-contact color situations that require special light resistance.
Acid Violet 43'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 Violet 43
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 Violet 43 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.
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.
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.
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
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.
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