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E951 Aspartame is a high-intensity sweetener widely used in foods and beverages to provide strong sweetness with very low caloric contribution at typical use levels.
E951 Aspartame is valued because E951 Aspartame provides a clean, sugar-like sweetness profile, and E951 Aspartame is often blended with other sweeteners such as E950 Acesulfame K to improve overall taste and sweetness persistence.
E951 Aspartame is not fully heat stable in all processing conditions, so E951 Aspartame is commonly used in cold-processed foods and beverages or in products where processing and storage conditions maintain sweetness performance.
CAS Number: 22839-47-0
EC Number: 245-261-3
Molecular Formula: C14H18N2O5
Molecular Weight: 294.31 g/mol
Synonyms: E951 Aspartame, Aspartame, Sweetener E951, Aspartame Powder, Aspartame Food Additive, Aspartame High Intensity Sweetener, L-Aspartyl-L-Phenylalanine Methyl Ester, Aspartame Sweetener, Aspartame Low Calorie Sweetener, E951, Aspartame in Beverages, Aspartame Tabletop Sweetener, E951 Aspartame, Aspartame, L-Aspartyl-L-phenylalanine Methyl Ester, L-Aspartyl-L-Phenylalanine Methyl Ester, Aspartyl-Phenylalanine Methyl Ester, Aspartyl Phenylalanine Methyl Ester, APM, Aspartame Sweetener, Aspartame Food Additive, Aspartame Food Grade, Aspartame Technical Grade, Aspartame Pharmaceutical Grade, Aspartame USP, Aspartame FCC, Aspartame EP, Aspartame JP, Aspartame Powder, Aspartame White Powder, Aspartame Crystalline Powder, Aspartame Granular, Aspartame Sweetening Agent, Aspartame High-Intensity Sweetener, Aspartame High Intensity Sweetener, Aspartame Intense Sweetener, Aspartame Artificial Sweetener, Aspartame Non-Nutritive Sweetener, Aspartame Non Nutritive Sweetener, Aspartame Low-Calorie Sweetener, Aspartame Low Calorie Sweetener, Aspartame Reduced-Calorie Sweetener, Aspartame Reduced Calorie Sweetener, Aspartame Sugar Substitute, Aspartame Sugar Replacer, Aspartame Tabletop Sweetener, Aspartame Beverage Sweetener, Aspartame Bulk Blend Component, Aspartame Sweetener Blend Component, Aspartame Sweetener Ingredient, Aspartame Food Ingredient, Aspartame Flavor Enhancer, Aspartame Sweet Taste Enhancer, Aspartame Potent Sweetener, Aspartame Sweetener Grade, Aspartame High Purity, Aspartame Pure, Aspartame Synthetic Sweetener, Aspartame Synthetic Food Sweetener, Aspartame Dipeptide Sweetener, Aspartame Methyl Ester Sweetener, Aspartame E951, E951 Sweetener, INS 951, E 951, Aspartame INS 951,
APPLICATIONS
E951 Aspartame is used in diet soft drinks to provide sweetness with low calories and a sugar-like taste profile.
E951 Aspartame is incorporated into flavored waters and juice drinks where sweetness is needed without added sugar.
E951 Aspartame is used in powdered beverage mixes to deliver intense sweetness after reconstitution.
E951 Aspartame is used in tabletop sweeteners as powders, granules, or tablets for consumer use in coffee, tea, and other beverages.
E951 Aspartame is incorporated into sweetener blends to improve sweetness curve and reduce aftertaste from other sweeteners.
E951 Aspartame is used in combination with E950 Acesulfame K to enhance sweetness intensity and improve stability of the sweetness profile.
E951 Aspartame is used in sugar-free chewing gum to provide clean sweetness and to support long-lasting flavor perception.
E951 Aspartame is incorporated into sugar-free candies and mints to deliver sweetness without promoting tooth decay.
E951 Aspartame is used in lozenges to mask bitterness and improve palatability in compatible formulations.
E951 Aspartame is used in yogurt and dairy desserts to reduce sugar while maintaining sweetness and consumer acceptance.
E951 Aspartame is incorporated into flavored milk drinks to provide sweetness in low-calorie formulations.
E951 Aspartame is used in pudding and custard desserts when processing conditions protect sweetener stability.
E951 Aspartame is used in gelatin desserts and powdered dessert mixes to provide sweetness with a clean taste.
E951 Aspartame is incorporated into low-calorie dessert toppings and sauces where heat exposure is limited.
E951 Aspartame is used in refrigerated desserts to maintain sweetness over shelf life.
E951 Aspartame is used in pharmaceutical syrups and chewable tablets to mask unpleasant taste and improve palatability.
E951 Aspartame is incorporated into oral care products such as toothpaste and mouthwash to provide sweetness without sugar.
E951 Aspartame is used in vitamin and supplement gummies where processing is controlled to maintain sweetness.
E951 Aspartame is used in reduced-sugar jams and fruit preparations to provide sweetness balance while reducing added sugar.
E951 Aspartame is incorporated into protein shakes and meal replacement drinks to support sweetness in low-sugar nutritional formats.
E951 Aspartame is used in snack bars and diet foods to provide sweetness and improved taste profile.
E951 Aspartame is valued because E951 Aspartame provides a sugar-like sweetness profile and works well in sweetener blends, especially for beverages and low-calorie foods where heat exposure is controlled.
E951 Aspartame is used as a high-intensity sweetener in sugar-free soft drinks.
E951 Aspartame provides strong sweetness with very low calorie contribution.
E951 Aspartame helps deliver a sweetness profile closer to sucrose than some other sweeteners.
E951 Aspartame is used in diet carbonated beverages to replace sucrose or HFCS.
E951 Aspartame supports sweetness in acidic beverage systems under controlled processing conditions.
E951 Aspartame helps reduce sugar content while maintaining taste intensity.
E951 Aspartame is used in still beverages such as flavored waters and vitamin waters.
E951 Aspartame supports clean sweetness in low-calorie beverage systems.
E951 Aspartame helps reduce the need for added sugar in flavored drinks.
E951 Aspartame is used in powdered beverage mixes for instant reconstitution.
E951 Aspartame supports easy dosing in dry blends due to concentrated sweetness.
E951 Aspartame helps maintain consistent sweetness after dilution.
E951 Aspartame is used in sports drink powders and electrolyte sachets to reduce sugar load.
E951 Aspartame supports palatable sweetness in functional hydration products.
E951 Aspartame helps deliver sweetness without significantly increasing glycemic impact.
E951 Aspartame is used in energy drink concepts to mask bitter notes from caffeine and botanicals in some formulations.
E951 Aspartame supports improved flavor balance in high-flavor systems.
E951 Aspartame helps reduce sugar while maintaining sweetness impact.
E951 Aspartame is used in flavored dairy drinks and yogurt drinks in some markets where permitted.
E951 Aspartame supports sweetness with low added sugar in flavored dairy.
E951 Aspartame helps maintain taste while reducing calories in dairy beverages.
E951 Aspartame is used in reduced-sugar yogurt and fermented dairy desserts in some formulations.
E951 Aspartame supports sweetness without increasing fermentable sugar level.
E951 Aspartame helps maintain sweetness intensity after fermentation.
E951 Aspartame is used in sugar-free chewing gum.
E951 Aspartame supports long-lasting sweetness in gum bases.
E951 Aspartame helps improve sweetness perception when blended with other sweeteners.
E951 Aspartame is used in sugar-free mints and lozenges.
E951 Aspartame supports high sweetness intensity in small-dose confections.
E951 Aspartame helps maintain pleasant taste in compressed candy products.
E951 Aspartame is used in reduced-sugar gummies and jellies in some formulations.
E951 Aspartame supports sweetness while allowing lower syrup solids.
E951 Aspartame helps balance sweetness in combination with polyols.
E951 Aspartame is used in tabletop sweetener sachets and tablets.
E951 Aspartame supports convenient dosing for coffee and tea sweetening.
E951 Aspartame helps deliver sweetness with minimal bulking agent addition.
E951 Aspartame is used in reduced-sugar jams and fruit spreads in some formulations.
E951 Aspartame supports sweetness while lowering sucrose contribution.
E951 Aspartame helps maintain fruit flavor balance in light spreads.
E951 Aspartame is used in reduced-sugar sauces and condiments to lower sugar content.
E951 Aspartame supports sweetness adjustment in ketchup-style and barbecue sauces.
E951 Aspartame helps maintain palatability in low-sugar savory sauces.
E951 Aspartame is used in sugar-free gelatin desserts and pudding mixes.
E951 Aspartame supports clean sweetness in instant dessert powders.
E951 Aspartame helps improve flavor release in gelled desserts.
E951 Aspartame is used in flavored syrups and low-calorie dessert toppings.
E951 Aspartame supports sweetness in syrups while reducing sugar solids.
E951 Aspartame helps maintain sweetness profile with reduced calories.
E951 Aspartame is used in bakery fillings and cream fillings to reduce sugar while keeping sweetness.
E951 Aspartame supports sweetness correction in reduced-sugar fillings.
E951 Aspartame helps maintain sensory quality in light bakery products.
E951 Aspartame is used in reduced-sugar ice cream and frozen desserts in some formulations.
E951 Aspartame supports sweetness while using polyols or fibers for bulk.
E951 Aspartame helps reduce added sugar while maintaining taste.
E951 Aspartame is used in protein shakes and meal replacement drinks to provide sweetness with low sugar.
E951 Aspartame supports masking of protein bitterness in some formulations.
E951 Aspartame helps improve flavor balance in high-protein beverages.
E951 Aspartame is used in dietary supplements such as effervescent tablets and sachets for taste masking.
E951 Aspartame supports improved palatability of vitamin and mineral products.
E951 Aspartame helps reduce sugar and improve compliance for consumers.
E951 Aspartame is used in pharmaceutical syrups and oral liquids as a sweetener in some products where permitted.
E951 Aspartame supports taste masking of bitter APIs.
E951 Aspartame helps improve patient acceptance without adding sugar load.
DESCRIPTION
E951 Aspartame is a dipeptide methyl ester sweetener that is significantly sweeter than sucrose, so only small amounts are needed to achieve desired sweetness.
E951 Aspartame provides a sweetness profile that many consumers perceive as closer to sugar than some other high-intensity sweeteners, which is why E951 Aspartame is widely used in beverages and tabletop sweeteners.
E951 Aspartame stability depends on temperature and pH, and E951 Aspartame can lose sweetness over time in high-heat processing or long storage at elevated temperature.
E951 Aspartame is often combined with E950 Acesulfame K because blends can improve sweetness intensity, roundness, and persistence while helping reduce individual aftertastes.
E951 Aspartame contains phenylalanine, so products containing E951 Aspartame must carry phenylalanine labeling for individuals with phenylketonuria (PKU).
E951 Aspartame should be used according to applicable food additive regulations and good manufacturing practices for the target market.
E951 Aspartame is typically supplied as a white crystalline powder with good flow when properly stored.
E951 Aspartame should be protected from moisture and heat to maintain potency and avoid caking.
E951 Aspartame should be handled with good hygiene and dust control practices during bulk powder processing.
PROPERTIES
Chemical Formula: C14H18N2O5
Molecular Weight: 294.31 g/mol
Common Name: E951 Aspartame
Chemical Type: High-intensity sweetener; dipeptide methyl ester
Appearance: White crystalline powder
Odor: Odorless
Taste: Sweet, sugar-like profile
Sweetness Intensity: Approximately 180–200 times sweeter than sucrose (application dependent)
Solubility: Slightly soluble to soluble in water (temperature dependent)
Heat Stability: Moderate to limited; degrades under prolonged heat and certain pH conditions
pH Stability: Best stability in mildly acidic to neutral conditions; stability decreases under harsh processing conditions
Stability: Sensitive to moisture and high temperature; store cool and dry
PKU Note: Contains phenylalanine; labeling required in many markets
Storage Temperature: 15–25°C, tightly closed, dry
Shelf Life: Typically 24–36 months in original sealed packaging (supplier dependent)
FIRST AID
Inhalation:
Move to fresh air if dust is inhaled.
Seek medical attention if respiratory irritation persists.
Avoid breathing dust during powder handling.
Skin Contact:
Wash with soap and water after contact.
Remove contaminated clothing and wash before reuse.
Seek medical advice if irritation develops or persists.
Eye Contact:
Rinse cautiously with water for several minutes.
Remove contact lenses if present and easy to do, then continue rinsing.
Seek medical attention if irritation persists.
Ingestion:
Rinse mouth with water.
Seek medical attention if discomfort occurs or if a large amount is swallowed.
Never give anything by mouth to an unconscious person.
Note to Physicians:
Treat symptomatically.
No specific antidote is required.
Provide supportive care as needed.
HANDLING AND STORAGE
Handling:
Use appropriate PPE including gloves and safety glasses for bulk handling.
Avoid generating dust and avoid inhalation of fine powder.
Maintain good hygiene and clean-up practices in handling areas.
Ventilation:
Use general ventilation for normal handling.
Use local exhaust where dust may be generated during powder transfer.
Minimize airborne particulate accumulation in enclosed areas.
Storage:
Store in tightly closed containers in a cool, dry place.
Protect from moisture to prevent caking and potency loss.
Keep away from heat sources and direct sunlight to maintain stability.
Spill and Leak Procedures:
Sweep up spilled powder and avoid dust generation.
Collect into suitable containers for reuse or disposal according to local regulations.
Clean residues to prevent slip hazards if powder becomes wet.
Handling Precautions:
Optimize formulation conditions because E951 Aspartame stability depends on temperature, pH, and storage time.
Ensure correct labeling for phenylalanine where required because E951 Aspartame contains phenylalanine.
Rotate stock using FIFO practices to maintain consistent quality and predictable sweetness performance.
