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Tartrazine (E102) is a synthetic lemon-yellow azo dye widely used in food, pharmaceuticals, and cosmetics. Its primary uses include coloring beverages, candies, cake decorations, and coating medications to aid identification.
Key selling points for manufacturers include its exceptional stability against light, heat, and acid, ensuring vibrant colors that don't fade during processing or storage. It is highly cost-effective compared to natural pigments like turmeric and offers perfect batch-to-batch color consistency. Additionally, Tartrazine dissolves quickly and evenly in water-based products without causing cloudiness or sediment.
Items | Specifications | Results |
Characteristic | Odorless powder | Conform |
Pure dye content % | 87.0 | 90.5 |
Drying Loss Chloride(Based on Nacl) And Sulfate(Based on Na2So4) w/% | ≤14.0 | 9.01 |
Water insoluble matter w/% | ≤0.2 | <0.2 |
chromatic aberration % | ≤1 | 0.25 |
Subsidiary Dyes w/% | ≤1.0 | 0.24 |
4-Hydrazinobenzene Sulfonic Acid % | ≤0.5 | <0.5 |
4-Aminonaphthalene-1-Sulfonic acid % | ≤0.5 | <0.5 |
5-Oxo-1-(4-Sulfophenyl)-2-Pyrazoline -3-Carboxylic Acid % | ≤0.5 | <0.5 |
4,4’-Diazoaminodi(Benzene Sulfonic Acid) % | ≤0.5 | <0.5 |
≤0.5 | <0.5 | |
Unsulfonated Aromatic Primary Amines(Based on Aniline) % | ≤0.01 | <0.01 |
Aerobic Bacterial Count CFU/g | ≤500.0 | <500.0 |
Total Number of molds and yeasts counts CFU/g | ≤100.0 | <100.0 |
Thermotolerant coliforms g | not detectable | Conform |
Staphylococcus Aureus g | not detectable | |
Pseudomonas aeruginosa g | not detectable | Conform |
Mercury(Hg) Mg/kg | ≤1.0 | <1.0 |
Lead(Pb) Mg/kg | ≤10.0 | <10.0 |
Arsenic(As) Mg/kg | ≤2.0 | <2.0 |
Cadmium(Cd) Mg/kg | ≤5.0 | <5.0 |
Conclusion | The product conforms to the above specifications. | |
CAS:1934-21-0
MF:C16H13N4NaO9S2
Melting point :300 °C
form :powder
Color:Yellow
Uses:
Tartrazine, also known as E102 or FD&C Yellow 5, is a synthetic lemon-yellow azo dye primarily used as a food coloring. Unlike the natural dyes we discussed earlier, Tartrazine is artificially produced (often derived from coal tar or petroleum chemicals) to provide a highly consistent and vibrant yellow hue.
Here are its main uses and selling points:
Primary Uses
Tartrazine is incredibly versatile and is widely used across several major industries due to its ability to easily dissolve in water and provide a bright color:
Food & Beverages: It is one of the most common food colorants, found in carbonated drinks, juices, candies, ice cream, jelly, chips, cake decorations, and condiments like mustard.
Pharmaceuticals: It is frequently used to coat pills, capsules, and liquid medicines, helping patients easily identify and distinguish different medications.
Cosmetics & Personal Care: You can find it in various products such as lipsticks, shampoos, body washes, and even toothpaste to achieve specific appealing shades.
Other Industries: It is also utilized in dyeing textiles (like wool and silk), as well as coloring toys, stationery, and household papers.
Key Selling Points
For manufacturers, Tartrazine offers several distinct advantages over many natural alternatives:
Exceptional Stability: It is highly resistant to light, heat, and acidic environments. This means products colored with Tartrazine maintain their vibrant yellow shade throughout processing, storage, and shelf life without fading or turning brown—a common issue with some natural pigments.
Cost-Effectiveness: Producing Tartrazine is significantly cheaper than extracting natural yellow pigments (like those from saffron or turmeric). Its high tinting strength means only a very small amount is needed to achieve a powerful color impact.
Consistency & Uniformity: Because it is synthetically manufactured, Tartrazine provides a perfectly uniform and predictable color every single time. It eliminates the batch-to-batch variations often seen in natural dyes due to seasonal or crop differences.
Excellent Solubility: It dissolves quickly and evenly in water-based products (like sodas and syrups) without causing cloudiness, sediment, or separation.
Series Of Products Selling
Products Name | CAS | Main Uses |
Sudan II | 3118-97-6 | Biological stain (e.g., for fats), fungicide, and industrial dye |
Acid Blue 90 | 6104-58-1 | Biological Staining: Widely used for staining proteins in gel electrophoresis and as a vital stain in ophthalmic surgeries. Industrial Dyeing: Applied to color wool, silk, nylon, leather, and paper with bright, durable shades. |
Acid Green 25 | 4403-90-1 | Textile & Cosmetics: Primarily used for dyeing synthetic fibers like nylon and wool, and serves as a green colorant in makeup products. Research: Acts as a precursor for hybrid pigments and a model pollutant in wastewater treatment studies. |
Solvent Red 43 | 15086-94-9 | Cosmetics: A key ingredient in lipsticks and pH-reactive "color-changing" balms due to its vibrant red hue. Lab Reagent: Functions as a biological stain for cells and an acid-base indicator in chemical analysis. |






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FAQ From Wuhan Fortuna Chemical Co.,Ltd
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A: For small QTY and low value product, we can provide sample for free exclude shipping cost. For high value sample, we will charge the basic sample cost, but we can refund all the cost if customers place order after sample test.
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A: Most of our products confirm to international standards like USP/EP/BP/JP/CP. We will provide COA/TDS/MSDS for customers to confirm the specification before placing order.
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A: For less than 100kg gross weight order will ship with courier like FedEx or UPS, we support customers to place courier orders remotely by their account, we will package the goods well and wait for pick up.For more than 100kg goods, we will transport by Air or Sea according to customers' requirement.
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A: We support customer to provide our products to any rightful third party testing organization to test our products according to the COA specification, if the test result is confirm with COA, we will take all the loss for customers.



Name:Wuhan Fortuna Chemical Co.,Ltd
Category:Others
Trade Category: Trading Company
Employees: 11 - 50 People
Address: Room 2015, No.2 Building, Kaixin Mansion No.107
Company Information: Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical and Intermediates, Food and Feed additives, Fine chemicals,Biochemical and Reagent, which is the members of Hubei E-commerce Chamber.
Our company has professional persons who major in chemical R&D and sicentific management, supply fine chemical products with high quality and close service, also supply custom-tailored products according to our clients' requirement.
We have a positive and self-motivated management work team with a common philosophy, caring and commitment through teamwork, our team strive to achieve success in delighting our clients and ourselves.
Since Wuhan Fortuna Chemical Co., Ltd founded, we continuously innovate our products and improve our service, sales network. Hence, we initiate the first sale mode on net in China, which is the retail trade of small package bring along wholesale of diversified management modes. Our products are exported widely to South Korea, Vietnam, Australia, Europe and South America, highly recommended by our clients.We insist on the management creed “Market is our compass, Quality is our life, Credit is our soul”. Clients’ trust is our forward power, their satisfaction is our struggling goal.
Wuhan Fortuna Chemical Co.,Ltd is a professional manufacturer which provide Azaperone with good quality and best price, welcome to contact us to get COA/TDS/MSDS of Azaperone.
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