Allura Red AC (E129) is a synthetic azo dye widely used as a food, cosmetic, and pharmaceutical colorant providing a vivid red to orange-red hue.
Allura Red AC belongs to the class of sulfonated monoazo dyes, known for their excellent water solubility, color strength, and stability under light, heat, and acidic conditions.
Allura Red AC (E129) is used globally in food, beverages, cosmetics, and medicines as a bright, stable, and cost-effective colorant.
Allura Red AC (E129) is approved by major regulatory agencies such as FDA (FD&C Red No. 40), EFSA, and JECFA for controlled use in edible and topical formulations.
CAS Number: 25956-17-6
EC Number: 247-368-0
Molecular Formula: C18H14N2Na2O8S2
Molecular Weight: 496.42 g/mol
Chemical Name: Disodium 6-hydroxy-5-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-2-naphthalenesulfonate
Synonyms: Allura Red AC, FD&C Red No. 40, Food Red 17, CI 16035, Food Red 17, Azo Red Dye, Red 40, Allura Red Aluminum Lake, C.I. Food Red 17, Azo Food Color Red, E129 Food Colorant, Allura Red AC (E129), E129 Allura Red, Allura Red, FD&C Red No. 40, Red 40, CI 16035, Food Red 17, Allura Red Dye, Allura Red Aluminum Lake, Allura Red Lake, Allura Red Powder, Allura Red Solution, Allura Red Colorant, Allura Red Coloring Agent, Allura Red Pigment, Allura Red Synthetic Dye, Allura Red Food Dye, Allura Red Food Colorant, Allura Red Beverage Colorant, Allura Red Confectionery Dye, Allura Red Cosmetic Pigment, Allura Red Pharmaceutical Colorant, Allura Red Textile Dye, Allura Red Ink Colorant, Allura Red Paint Colorant, Allura Red Coating Additive, Allura Red Color Additive, Allura Red Chemical, Allura Red Compound, Allura Red Material, Allura Red Product, Allura Red Substance, Allura Red Technical Grade, Allura Red Industrial Grade, Allura Red Pharmaceutical Grade, Allura Red Cosmetic Grade, Allura Red Food Grade, Allura Red Laboratory Grade, Allura Red Research Grade, Allura Red Pure, Allura Red Extra Pure, Allura Red High Purity, Allura Red Refined, Allura Red Stabilized, Allura Red Certified, Allura Red Analytical Standard, Allura Red Laboratory Standard, Allura Red Certified Reagent, Allura Red Laboratory Reagent, Allura Red Assay, Allura Red Bulk Chemical, Allura Red Commercial Grade, Allura Red Fine Chemical, Allura Red Specialty Chemical, Allura Red Functional Ingredient, Allura Red Specialty Ingredient, Allura Red Functional Additive, Allura Red Specialty Additive, Allura Red Water-Soluble Dye, Allura Red Azo Dye, Allura Red Synthetic Colorant, Allura Red Acid Dye, Allura Red Anionic Dye, Allura Red Food Additive, Allura Red Lake Pigment, Allura Red Non-Fading Dye, Allura Red Non-Bleeding Dye, Allura Red Stable Colorant, Allura Red Brilliant Red Dye, Allura Red Synthetic Pigment
APPLICATIONS
Allura Red AC (E129) is used as a synthetic red azo dye in the food industry.
Allura Red AC (E129) provides vibrant red to orange-red hues in various food and beverage products.
Allura Red AC (E129) is valued for its stability under heat, light, and acidic conditions.
Allura Red AC (E129) is applied in soft drinks and flavored beverages.
Allura Red AC (E129) imparts bright color to fruit-flavored sodas and energy drinks.
Allura Red AC (E129) ensures uniform color dispersion without sedimentation.
Allura Red AC (E129) is used in confectionery products.
Allura Red AC (E129) provides appealing shades in candies, gummies, and jellies.
Allura Red AC (E129) maintains color brilliance throughout shelf life.
Allura Red AC (E129) is incorporated in bakery goods.
Allura Red AC (E129) provides decorative coloring in icings, fillings, and toppings.
Allura Red AC (E129) withstands baking temperatures with minimal fading.
Allura Red AC (E129) is used in dairy products and desserts.
Allura Red AC (E129) adds visual appeal to yogurt, puddings, and ice creams.
Allura Red AC (E129) remains stable in emulsified and frozen formulations.
Allura Red AC (E129) is applied in processed foods and snacks.
Allura Red AC (E129) improves consumer perception in chips, sauces, and seasonings.
Allura Red AC (E129) ensures uniform coloration during mixing and packaging.
Allura Red AC (E129) is used in pharmaceutical and nutraceutical formulations.
Allura Red AC (E129) colors tablets, capsules, and syrups for identification and aesthetic enhancement.
Allura Red AC (E129) offers excellent solubility and pH stability in aqueous systems.
Allura Red AC (E129) is incorporated in cosmetics and personal care products.
Allura Red AC (E129) provides warm red tones in lipsticks, blushes, and lotions.
Allura Red AC (E129) meets purity standards for non-toxic cosmetic use.
Allura Red AC (E129) is used in pet foods and animal feeds.
Allura Red AC (E129) enhances the visual appeal of kibbles and treats.
Allura Red AC (E129) provides consistent coloration across production batches.
Allura Red AC (E129) is applied in educational and industrial dye formulations.
Allura Red AC (E129) serves as a colorant for biological stains and chemical demonstrations.
Allura Red AC (E129) provides high color intensity and aqueous solubility.
Allura Red AC (E129) is incorporated in beverages with carbonated and still bases.
Allura Red AC (E129) maintains optical clarity and stable color under storage.
Allura Red AC (E129) resists color shift under varying pH levels.
Allura Red AC (E129) is used in ice pops, syrups, and powdered drink mixes.
Allura Red AC (E129) delivers uniform coloring with excellent lightfastness.
Allura Red AC (E129) enhances product differentiation through bright visual tone.
Allura Red AC (E129) is applied in decorative culinary preparations.
Allura Red AC (E129) provides intense coloring for sauces, toppings, and coatings.
Allura Red AC (E129) ensures food-safe performance under regulated conditions.
Allura Red AC (E129) is used in research and quality control laboratories.
Allura Red AC (E129) serves as a pH indicator and tracer dye in analytical applications.
Allura Red AC (E129) supports optical calibration and colorimetric studies.
Allura Red AC (E129) is used as a food colorant in beverages, confectionery, and bakery products.
Allura Red AC (E129) provides a bright, appealing red hue that remains stable during processing and storage.
Allura Red AC enhances the appearance and marketability of food products.
Allura Red AC (E129) is used in carbonated drinks, fruit-flavored beverages, and powdered drink mixes.
Allura Red AC provides strong color intensity and clarity at low dosage levels.
Allura Red AC ensures consistent color tone even under acidic conditions.
Allura Red AC is applied in candies, chewing gums, and coatings.
Allura Red AC imparts a deep red color resistant to fading during shelf life.
Allura Red AC provides visual uniformity and improved product appeal.
Allura Red AC is incorporated in ice creams, yogurts, desserts, and jellies.
Allura Red AC remains stable under refrigeration and thermal processing.
Allura Red AC enhances the visual richness of frozen and dairy products.
Allura Red AC is used in baked goods, icings, and fillings.
Allura Red AC retains its color under high-temperature conditions.
Allura Red AC contributes to decorative color accents in bakery items.
Allura Red AC (E129) is used in snack coatings and extruded products.
Allura Red AC provides vibrant coloration and heat stability in dry and oily systems.
Allura Red AC ensures visual consistency across product batches.
Allura Red AC is applied in pharmaceutical syrups, tablets, and capsules.
Allura Red AC enables product identification and improves consumer compliance.
Allura Red AC meets pharmacopeial requirements for medicinal coloring agents.
Allura Red AC is used in cosmetic and personal care formulations such as lipsticks, shampoos, and body washes.
Allura Red AC provides long-lasting color and compatibility with surfactant systems.
Allura Red AC is used in regulated concentrations for safe topical applications.
Allura Red AC (E129) is employed in pet foods and animal feed additives.
Allura Red AC enhances visual uniformity and attractiveness of formulated feeds.
Allura Red AC maintains its stability under extrusion and pelleting processes.
Allura Red AC is used in textile, paper, and craft coloring systems.
Allura Red AC imparts bright red to orange-red hues with uniform penetration.
Allura Red AC ensures excellent wash and lightfastness for short-term applications.
Allura Red AC (E129) is applied in dietary supplements, nutrition powders, and effervescent tablets.
Allura Red AC provides uniform color dispersion and consistent batch quality.
Allura Red AC remains stable with active ingredients and flavoring systems.
Allura Red AC (E129) is used in cosmetic lakes and pigment dispersions.
Allura Red AC Aluminum Lakes enable coloring of oil-based and anhydrous systems.
Allura Red AC Lakes ensure high color retention and light stability.
Allura Red AC is incorporated in biological and analytical chemistry.
Allura Red AC functions as a pH indicator and dye tracer in laboratory testing.
Allura Red AC provides clear, detectable coloration in aqueous assays.
Allura Red AC (E129) is employed in ink, paint, and coating formulations.
Allura Red AC provides a bright hue with good light and heat stability.
Allura Red AC is compatible with polymeric binders and dispersion agents.
Allura Red AC is used in gelatin and pectin-based desserts.
Allura Red AC offers brilliant, transparent color without affecting gelation properties.
Allura Red AC maintains hue stability during storage and packaging.
Allura Red AC is combined with Tartrazine (E102) and Brilliant Blue FCF (E133).
Allura Red AC forms various orange, purple, and brown tones through color blending.
Allura Red AC provides customizable shade ranges for formulation flexibility.
Allura Red AC is incorporated in functional and fortified beverages.
Allura Red AC remains stable in low pH and high-acid formulations.
Allura Red AC supports visual consistency in vitamin and electrolyte drinks.
Allura Red AC is utilized in cosmetic and pharmaceutical coatings.
Allura Red AC improves visual uniformity and brand recognition.
Allura Red AC ensures compatibility with excipients and polymers.
Allura Red AC (E129) complies with global food safety and labeling regulations.
Allura Red AC is certified under FDA 21 CFR Part 74.340 and EU Regulation (EC) No 1333/2008.
Allura Red AC meets purity standards defined by JECFA and Codex Alimentarius.
DESCRIPTION
Allura Red AC (E129) is a synthetic red azo dye widely used in food, pharmaceutical, and cosmetic industries.
Allura Red AC (E129) provides strong, bright red coloration with high solubility in water.
Allura Red AC (E129) is known for its chemical stability and wide pH compatibility.
Allura Red AC (E129) has the CAS number 25956-17-6.
Allura Red AC (E129) has the EC number 247-368-0.
Allura Red AC (E129) has the molecular formula C18H14N2Na2O8S2.
Allura Red AC (E129) has a molecular weight of 496.42 g/mol.
Allura Red AC (E129) appears as a red to dark red powder or granules.
Allura Red AC (E129) is highly soluble in water, producing a vivid red solution.
Allura Red AC (E129) has maximum absorbance around 504 nm in aqueous medium.
Allura Red AC (E129) demonstrates excellent resistance to light and oxidation.
Allura Red AC (E129) maintains color stability in acidic and neutral pH environments.
Allura Red AC (E129) is approved by regulatory authorities including EFSA and FDA for controlled food use.
Allura Red AC (E129) is classified as FD&C Red No. 40 in the United States.
Allura Red AC (E129) should be stored in a cool, dry place away from direct light and humidity.
Allura Red AC (E129) is a bright red to orange-red powder or granule with high color strength and purity.
Allura Red AC (E129) is odorless, water-soluble, and stable under heat and light exposure.
Allura Red AC (E129) maintains excellent chromatic strength under acidic and neutral pH.
Allura Red AC is an azo compound containing a -N=N- linkage connecting two aromatic rings.
This structure allows strong electronic resonance, producing vivid red color.
Allura Red AC (E129) contains sulfonate groups that enhance water solubility and formulation compatibility.
Allura Red AC demonstrates outstanding stability in acidic beverages and confectionery.
Allura Red AC (E129) resists color fading during pasteurization, cooking, and storage.
Allura Red AC (E129) exhibits minimal migration in multi-phase food systems.
Allura Red AC is non-volatile and non-reactive under normal storage conditions.
Allura Red AC (E129) is compatible with most food ingredients, thickeners, and preservatives.
Allura Red AC (E129) forms clear solutions without precipitation or turbidity.
Allura Red AC may be converted into aluminum lake form for use in fat-based or dry applications.
The lake pigment variant is used in confectionery coatings, lipsticks, and pressed powders.
Allura Red AC (E129) provides excellent dispersion and uniformity in non-aqueous systems.
Allura Red AC is produced in compliance with international food additive guidelines.
Allura Red AC (E129) is batch-tested to ensure compliance with heavy metal and purity limits.
Allura Red AC (E129) is approved for human consumption within its established acceptable daily intake (ADI) of 0–7 mg/kg body weight.
PROPERTIES
Appearance: Red to orange-red powder or granules
Odor: Odorless
Assay (Color Content): ≥85%
pH (1% aqueous solution): 6.0–8.0
Solubility: Soluble in water; slightly soluble in ethanol
Melting Point: >300°C (decomposes)
Density: 1.0–1.2 g/cm³
Light Stability: Excellent
Heat Stability: Excellent
Acid Stability: Excellent
Alkali Stability: Moderate
Color Index Number: CI 16035
Absorption Maximum (λmax): 504 nm (in water)
Moisture Content: ≤5%
Ash Content: ≤10%
Storage Temperature: 5–30°C
Shelf Life: 5 years in sealed, dry containers
FIRST AID
Inhalation:
Move to fresh air immediately.
Seek medical attention if irritation or discomfort occurs.
Skin Contact:
Wash with soap and water.
If irritation develops, seek medical advice.
Eye Contact:
Rinse cautiously with water for at least 15 minutes.
Seek medical attention if redness persists.
Ingestion:
Rinse mouth with water.
Do not induce vomiting.
Seek medical help if discomfort occurs.
Note to Physicians:
Treat symptomatically.
No specific antidote required.
HANDLING AND STORAGE
Handling:
Avoid dust generation during transfer and mixing.
Use gloves and goggles to prevent eye and skin contact.
Ensure hygienic practices during processing.
Ventilation:
Provide adequate local exhaust or general ventilation.
Avoidance:
Avoid strong oxidizing and reducing agents.
Prevent contact with moisture to avoid clumping.
Spill and Leak Procedures:
Sweep up or vacuum gently.
Avoid airborne dust formation.
Dispose of residues in accordance with local regulations.
Storage:
Store in a cool, dry, and well-ventilated place, away from sunlight.
Keep containers tightly closed to maintain product stability.
Avoid exposure to humidity and temperature fluctuations.