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Acid Blue 74 CAS 860-22-0

Molecular Formula: C16H11N2NaO8S2

Formula Weight: 446.38

ZSpharmac: Acid Blue 74 Raw Material Supplier

Product Name: Acid Blue 74
CAS No: 860-22-0
Purity: 99%

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Basic Info

Product Name:Acid Blue 74
Other Names:Indigo Carmine
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:Dark Blue Powder
EINECS No.:212-728-8
Storage:Room Temp
Provide:Acid Blue 74 MSDS;
Acid Blue 74 COA

What is Acid Blue 74?

Acid blue 74 (IC) is a commonly used indigo dye that can be utilized for dyeing denims and other blue textiles. Acid blue 74 can also be used as an indicator in analytical chemistry and as a tarnish for microscopic observation. On top of that, Acid Blue 74 is utilized in the food, pharmaceutical and aesthetic markets. Nevertheless, this sort of indigo dye can create growths and cancer cells, and can create reproductive, developing and neurological conditions, threatening human health. Consequently, decolorization and degradation of acid blue 74 in water bodies is vital to minimizing the contamination brought on by this color.

There have actually been some reports on using physical adsorption methods to get rid of acid blue 74 from wastewater. The adsorption products made use of consist of chitosan and triggered carbon. Nonetheless, these physical methods can only adsorb and separate the color from the fluid, and more treatment is needed to decolorize and degrade the dye. Chemical treatment needs including brand-new chemical elements to the color remedy, which frequently creates second contamination to the setting. The enzyme-catalyzed technique can speed up the decolorization and disintegration of dyes, is extremely efficient and triggers much less pollution, and is a more eco-friendly dye therapy technique. Making use of reliable enzymes to militarize the decolorization and deterioration of acid blue 74 will certainly become an important way to reduce acid blue 74 pollution.

Acid Blue 74 Property

Melting point >300°C
density 1.01 g/mL at 20 °C
refractive index n20/D 1.335
storage temp. room temp
solubility 1g/l
form Powder/Solid
Colour Index 73015
color Very dark blue to purple
PH7 (10g/l, H2O, 20℃)
PH Range11.5(blue)-14.0(yellow)
OdorLight odour
Water Solubility 1 g/100 mL (25 ºC)


Applications of Acid Blue 74

1. Used as food tinting rep.
Our country specifies that it can be taken advantage of in red and environment-friendly silk, the use amount is 0.20 g/kg; in fruit juice (delicious) drinks, soft drinks, ready merlot, wonderful, bread decors, tinted cherry containers (for design), green plums, The usage quantity is 0.10 g/kg; the usage quantity in dipping side meals is 0.01 g/kg. Food blue pigment. Commonly used for color mixing. Taking into consideration that it is fairly unpredictable, has actually reduced fastness and weak dyeability, it is most proper for dark shades. It can be changed right into tasty chocolate, eco-friendly, adzuki bean, brown, and coffee colors. Utilized in cakes, cold beverages, and renewing drinks, the dose is 5 to 100 mg/kg. It is utilized as an oxidant decrease indicator and organic dye, in addition to for the determination of kidney feature and for the coloring of food, medicine and daily cosmetics. Edible indigo is an artificial edible pigment. Food coloring is a kind of additive made use of for food coloring, containing artificial pigments and natural pigments, with a total quantity of greater than 60 kinds.

2. Acid blue 74 catalytic fading photometric strategy for option of cobalt.
The research study uncovered that in weakly alkaline media, trace quantities of cobalt () have a solid catalytic outcome on the fading reaction of H2O2 oxidation of acid blue 74, hence developing a new photometric strategy for determining trace amounts of cobalt, which shows the ΔA well worth of the reaction rate. (Anon-Acatalytic) has an excellent straight partnership with the focus of cobalt within a specific range. It is made the most of for the assessment of trace amounts of Co( II) in water examples, and the results suffice. The dye-based chromogen Acid Blue 74 (sodium 5,5 ′- indigo sulfonate) reagent is a reasonably easy to fix redox feedback system in aqueous service. In a solution with a pH worth < 8.0, it pleases the change under this issue. The redox couple of the steel ion as the vehicle driver remains to be in the intermediate difficulty of the redox variety of the stimulant, suggesting that Carbon monoxide 2+ is the stimulant of this response system. The response device is as abide by:

2. Choice of iodine in kelp using acid blue 74 oxidative fading photometric method.
Iodine is called the “intellectual component” and is amongst the micronutrient crucial for the body. The iodine product in the body of a healthy and well balanced grownup pertains to 30 mg. Its main feature is to market the body’s basal metabolism, heat manufacturing, and advertise physical and mind development. Iodine shortage in very early youths will absolutely hold off mind development to differing degrees, consequently impacting intelligence., and this outcome is permanent. Extreme iodine usage can trigger goiter and hyperthyroidism. Research study and researches by specialists and scholars have discovered that the Knowledge of students in high-iodine locations are considerably less than those in places with ideal iodine. Grownups must take in no more than 2,000 μg of iodine daily, or else it will certainly produce potentially dangerous goiter. The substantial food sources of iodine are salt, fish and shellfish, veggies and milk things. It is actually considerable to take a look at and determine trace amounts of iodine in kelp. In thin down sulfuric acid tool, potassium iodide has a catalytic end result on the fading comments of potassium bromate oxidizing acid blue 74. Based upon this, a technique for establishing trace iodine web content by oxidation fading photometry was developed. The absorption wavelength of this approach is 610 nm, and the iodine item reveals a superb direct connection in the series of 0.2 ~ 1.4 μg/ mL. Its regression direct formula is ΔA = 0.1397c-0.00596, the connection coefficient R = 0.9997, and the approach exploration limitation is 0.1312 μg/ mL, the evident activation energy of the reaction is 121.7 kJ/mol. The recovery rate of kelp instances was 98.5% ~ 103.3%. This method is straightforward to run and has high accuracy. It can be associated with the choice of iodine web material in kelp with ample outcomes.

3. Prep work task of DNA electrochemical sensing tool based upon acid blue 74 electrochemical polymerization membrane.
Acid blue 74 (IC) has superb electroactive and optical structures. There are reports in the literary works that a polyacid blue 74 movie was prepared by electrochemical polymerization, and horseradish peroxidase was paralyzed via electrostatic adsorption to create a brand-new enzyme electrode; there are also records that a polypyrrole-acid blue 74 compound prepared The membrane layer is utilized for the synchronised decision of dopamine and ascorbic acid. There are additionally compositions looks into on DNA electrochemical sensing units based upon acid blue 74 electrochemical polymer membrane layer layers, that include the adhering to activities:

① Use cyclic voltammetry to alter the glazed carbon electrode with an acid blue 74 polymer flick to obtain a polyacid blue 74 changed electrode;
② The polyacid blue 74 transformed electrode is activated by phosphorus pentachloride to acquire a sulfonyl chloride group, which covalently condenses with the single-stranded probe DNA with a 5′- surface customized amino group to obtain a probe series customized electrode;

③ Integrate the probe series altered electrode with the platinum electrode and Ag/AgCl electrode to establish a three-electrode system electrochemical DNA noticing device.

Acid Blue 74 Decolorization Method

CotA laccase militarizes acid blue 74 decolorization. The primary elements influencing the decolorization of CotA-catalyzed acid blue 74 are temperature, pH and color mass concentration. Some research studies have actually optimized the decolorization problems for CotA laccase degradation of indigo rouge and established a three-dimensional square mathematical model. This design fits the relationship between the decolorization price of Acid Blue 74 and numerous aspects well. The three elements of pH, temperature level, and dye mass focus have interactive results on the decolorization price. The value of their results on the decolorization rate from huge to little is: pH, temperature, and dye mass concentration. The deterioration conditions gotten based on the real conditions of the examination are pH=8.6, temperature of 60 ° C, and dye mass concentration of 41.5 mg/L. Under these problems, the decolorization price of Acid Blue 74 can reach 91.4%, which is close to the value forecasted by the design. CotA laccase can militarize the deterioration of acid blue 74 to create a tiny particle compound with a mass-to-charge ratio of 216.07 [M-Na] -, and acid blue 74 is deteriorated.

Contact Us

About Products:
If you need the cosmetic raw material Acid Blue 74, please contact our service staff directly, we will provide you with high-quality products at the best price.
As an experienced Acid Blue 74 manufacturer and supplier, our company, ZSpharmac, will provide Acid Blue 74 raw materials to customers around the world for a long time.
Over the years, the company has adhered to the spirit of “integrity management, strict quality control, and customer first” and has won unanimous praise from customers at home and abroad.

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Cosmetic raw materials
  • Products/Service:Cosmetic raw materials (flavors and fragrances,antioxidant products, moisturizing and hydrating, whitening agents, cosmetic additives)
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

Get Acid Blue 74 Quotation