PRODUCT
Zhishang Bio Indigo CAS 482-89-3
CAS:482-89-3 | H2MgO2 |MW：58.32 | EINECS NO：207-586-9
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
We specialize in supplying various high-purity chemical raw materials with strict quality control, supporting sample testing and customized services to meet the production needs of different industries.
Description
Indigo is not just a dye but a story of five thousand years of cultural exchange. It was once considered a luxury color, comparable to gold. It became a popular choice for clothing after the Industrial Revolution. It comes from ancient plants but has a molecular structure that is fundamental in organic chemistry.
Chemical and Physical Properties
Indigo’s unique properties determine its application process and performance.
1. Chemical structure and essence
Chemical name: Indigo’s IUPAC system is named 2- (1,3-dihydro-3-oxo-2H-indol-2-ylidene) -1,2-dihydro-3H-indol-3-one, which is an organic compound belonging to indole derivatives.
Molecular structure: The molecular core of the compound is a conjugated ring system consisting of two indole-ketone rings linked by a double carbon-carbon bond. This large conjugated planar system, which is capable of absorption photons at specific wavelengths and reflecting blue light in visible light, is what gives it its color.
Indigo carmine is an important isomer. Indirubin is also found in the indigo plants. Its molecular structure mirrors that of Indigo. However, it is usually a by-product. In order to maintain the quality of commercial Indigo dyes, the amount of indigo-red is strictly controlled.
2. Physical Properties
Appearance: Pure Indigo powder is usually a dark, crystalline blue with a bronze sheen.
Indigo’s core property is its solubility. Indigo is almost insoluble and insoluble in cold solvents. It cannot be used directly for staining. Due to this characteristic, both ancient and modern manufacturers must use chemical treatments to apply it.
Stability: Solid-state Indigo is relatively stable in terms of chemical properties but sensitive to strong oxidants or reducing agents. Photo-induced fading is induced by light and cellulose fibers. This is why denim has a “color fading effect”.
Product Images & Packaging
Product Parameters
| Indigo Chemical Properties |
| Melting point | >300 °C(lit.) |
| Boiling point | 405.51°C (rough estimate) |
| density | 1.01 g/mL at 20 °C |
| vapor pressure | 0Pa at 100℃ |
| refractive index | 1.5800 (estimate) |
| Fp | >220℃ |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | DMSO (Slightly, Heated, Sonicated), DMF (Slightly) |
| form | Powder |
| Colour Index | 73000 |
| pka | -3.83±0.20(Predicted) |
| color | Dark blue to violet |
| Water Solubility | <0.1 g/100 mL |
| λmax | 602 nm |
The application of Indigo
The wide application of Indigo
1. Textile dyeing
Denim: This is Indigo’s largest and most famous application. By controlling the number of immersion times and oxidation time, various blue tones ranging from light blue to dark black can be obtained. Its unique fading characteristics create a “vintage” effect, forming a vast cowboy culture.
Workwear and uniforms: Due to its sturdy, dirt resistant appearance and good water wash fastness, Indigo has long been used for workwear, military uniforms, and student uniforms.
Traditional clothing and handicrafts: Indigo, a plant, remains an important dye and carries profound cultural value in traditional crafts such as tie dyeing and wax dyeing in China, blue dyeing in Japan, and mud dyeing in West Africa around the world.
2. Used as a pigment
Due to Indigo’s insolubility, it can be made into pigments for:
Art pigments: used for oil painting, watercolor, etc.
Ink: Indigo can be used for printing.
Paint: Used historically for coloring wood.
3. In the field of food and cosmetics
Synthetic Indigo and its derivatives have been approved as food colorants for use in candies, pastries, beverages, etc., presenting a blue color. It is also used in lipstick, eye shadow and other cosmetics.
Indigo'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 Indigo
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 Indigo 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.
