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Brilliant Blue FCF (FD&C Blue #1)
Brilliant blue FCF (FDC Blue #1) is a synthetic organic compound used primarily as a blue colorant for processed foods, medications, dietary supplements, and cosmetics. It is classified as a triarylmethane dye and is known under various names, such as FD&C Blue No. 1 or acid blue 9. It is denoted by E number E133 and has a color index of 42090. It has the appearance of a reddish-purple (indigo-blue) powder and is soluble in water and glycerol, with a maximum absorption at about 628 nanometers. It is one of the oldest FDA-approved color additives and is generally considered nontoxic and safe.
As a blue color, brilliant blue FCF is often found in cotton candy, ice cream, canned processed peas, packet soups, bottled food colorings, icings, ice pops, blueberry flavored products, children’s medications, dairy products, sweets, soft drinks, and drinks, especially the liqueur Blue Curaçao. It is also used in soaps, shampoos, mouthwash, and other hygiene and cosmetics applications.
Brilliant blue FCF is extensively used as a water tracer agent. Due to its ability to retain color for long periods, it outperforms other dye tracers. Additionally, brilliant blue FCF has a low toxicity level that is favorable for the environment.
Product Specifications
Molecular Weight | 792.84 |
Molecular Formula | C37H34N2Na2O9S3 |
CAS Number | 3844-45-9 |
E Number | E133 |
Color Index | 42090 |
Maximum Absorption | 628 nm |
Applications and Benefits:
- Food and beverage coloring (e.g., ice cream, candies, drinks)
- Cosmetics and personal care products (e.g., soaps, shampoos, lipsticks)
- Biological stains and textile dye
- Wood staining and indicators
- Water tracer dye with high retention and low toxicity
Caution:
Handle in accordance with safety guidelines. Refer to SDS for details.
Tartrazine (FD&C Yellow 5)
Tartrazine (also known as FD&C Yellow 5, Acid Yellow 23, and Food Yellow 4) is a synthetic lemon yellow azo dye primarily used as a food coloring. It may also be referenced as E number E102, C.I. 19140.
In addition to being a colorant in food, drugs and cosmetics, it can be used to dye silk and wool. It serves as a dye for wool and silks, a colorant in food, drugs and cosmetics.
Many foods contain tartrazine in varying proportions, depending on the manufacturer or person preparing the food. When in food, tartrazine is typically labelled as "color", "tartrazine", or "E102", depending on the jurisdiction, and the applicable labeling laws (see Regulation below).
Products containing tartrazine commonly include processed commercial foods that have an artificial yellow or green color, or that consumers expect to be brown or creamy looking. It has been frequently used in the bright yellow coloring of imitation lemon filling in baked goods.
Foods containing Tartrazine may include ice cream, ice pops, popsicles, candy, gummy bears, cotton candy, instant puddings, gelatin, cake mixes, pastries, custard powder, marzipan, biscuits, and cookies.
Beverages containing Tartrazine may include soft drinks, energy and sports drinks, powdered drink mixes, fruit cordials, and flavored/mixed alcoholic beverages.
Snacks containing Tartrazine may include flavored corn chip, chewing gum, popcorn, and potato chips.
Condiments and spreads containing Tartrazine may include jam, jelly, marmalade, mustard, horseradish, pickles, and processed sauces.
A number of personal care and cosmetics products may contain tartrazine, usually labelled as CI 19140 or FD&C Yellow 5, including:
Liquid and bar soaps, green hand sanitizer, moisturizers and lotions, mouth washes, perfumes, toothpastes, shampoos, conditioners, eyeshadow, blush, face powder and foundation, lipstick, nail polish, nail polish remover, temporary tattoos, and tanning lotions.
In most jurisdictions, presence of Tartrazine must be declared on the product label if used in food, medicine or personal care products.
Some people may have sensitivity to Tartrazine.
According to the FDA, tartrazine causes hives in fewer than 1 in 10,000 people, or 0.01%. Symptoms may appear after a few minutes up to 14 hours after exposure.
For additional information, please see Code of Federal Regulations #21, Parts 1-99.
Product Specifications
Chemical Name | FD&C Yellow 5, Acid Yellow 23, Food Yellow 4, E102 |
Applications | Food, pharmaceuticals, cosmetics, textile dyeing |
Sensitivity Rate | 0.01% population |
Labeling Requirement | Mandatory in most jurisdictions |
Color Appearance | Lemon yellow |
Applications and Benefits:
- Used in processed commercial foods with yellow or green coloring
- Common in beverages such as soft drinks and energy drinks
- Found in cosmetic products like eyeshadows and nail polish
- Applied in textile dyeing for wool and silk
- Regulatory compliance ensures proper labeling
Caution:
Some individuals may be sensitive to Tartrazine, experiencing reactions such as hives in rare cases. According to the FDA, sensitivity occurs in fewer than 1 in 10,000 people. Symptoms may appear minutes to 14 hours after exposure.
Synonyms:
FD&C Yellow 5, Acid Yellow 23, Food Yellow 4, E102, C.I. 19140
FD&C RED 40 Powder, Allura Red AC
Allura Red AC is a water soluble red azo dye that goes by several names, including FD&C Red 40. It is used as a food dye and has the E number E129. In solution, its maximum absorbance lies at about 504 nm (Absorbs green color). In the United States, Allura Red AC is approved by the FDA for use in cosmetics, drugs, and food. It is used in some tattoo inks and is used in many products, such as cotton candy, soft drinks, cherry-flavored products, children’s medications, and dairy products. It is occasionally used to dye medicinal pills, such as the antihistamine fexofenadine, for purely aesthetic reasons. FDC RED 40 is by far the most commonly used red dye in the United States,[8] completely replacing amaranth (Red 2) and also replacing erythrosine (Red 3) in most applications due to the negative health effects of those two dyes. Information provided in this page are from the manufacturer, supplier or online resources. CAS Number: 25956-17-6 C.I.# 16035
Product Specifications
CAS Number | 25956-17-6 |
C.I. Number | 16035 |
Absorbance | 504 nm |
Applications | Food, cosmetics, drugs, tattoo inks |
Approval | FDA |
Applications and Benefits:
- Water-soluble for easy application
- FDA-approved for safety and reliability
- Versatile use across food, cosmetics, and more
- Vivid red color with maximum absorbance at 504 nm
- Replaces other dyes due to superior safety profile
Caution:
Ensure proper application as per industry regulations. May cause allergic reactions in sensitive individuals.
Synonyms:
Allura Red AC, FD&C Red 40, E129, C.I. 16035.
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