Aspartame
CAS Number: 22839-47-0
Aspartame (E951) is a dipeptide methyl ester approximately 200 times sweeter than sucrose, composed of L-aspartic acid and L-phenylalanine. It delivers a clean, sweet taste closely resembling sucrose and is preferred in cold beverages, chewing gum, and tabletop sweeteners. Aspartame is heat-labile above 80°C (limiting use in baking) and must carry a phenylketonuria (PKU) warning. Encapsulated grades extend heat tolerance for some applications.
Technical Specifications
| appearance | White crystalline powder |
| purity (%) | ≥98.0 |
| heavy metals (ppm) | ≤10 |
| specific rotation [α]D20 | +14.5 to +16.5 |
| sweetness potency (vs sucrose) | ~200× |
Applications
- Carbonated diet beverages and non-carbonated drinks
- Chewing gum and breath freshening products
- Tabletop sweetener powder and tablets
- Dairy desserts, yogurt, and fruit preparations
- Pharmaceutical chewable tablets and syrups
Key Features
- Clean sucrose-like taste with no bitter or metallic aftertaste in beverages
- Low caloric contribution at usage levels (4 kcal/g but effective at 0.1% dose)
- Synergistic sweetness enhancement when combined with Ace-K
- EU E951 approved, FDA approved, ADI 40 mg/kg bw; encapsulated grade available
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CAS Number
22839-47-0
Category
Food / Beverage AdditivesAvailability
In StockSample
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