Aspartame (CAS 22839-47-0), N-L-α-Aspartyl-L-phenylalanine-1-methyl ester, is dipeptide-based high-intensity low-calorie sweetener, approx. 200 times sweeter than sucrose, clean sugar-like taste without bitter after-taste. Widely used in sugar‑free beverage, chewing gum, confectionery, table-top sweetener, dairy dessert and pharmaceutical oral excipient. Available in Food FCC Grade, USP / EP / BP Pharmacopoeia Grade. TNJ Chemical is a professional manufacturer and exporter since 2001. We guarantee high-quality products, competitive prices and thoughtful service. If you want to buy or have any other inquiries, please contact sales@tnjchem.com
General Product Data
Product Name Aspartame
CAS Number 22839-47-0
EINECS‑EC 244-221-0Synonyms N-L-α-Aspartyl-L-phenylalanine-1-methyl ester; E951; Asp-Phe-OMe
Molecular Formula C14H18N2O5
Molecular Weight 294.30 g/molChemical Family L-dipeptide methyl ester sweetener
Available Grade Food FCC Grade; USP-EP-BP Pharma Grade
Regulatory Status FCC / JECFA compliant; REACH registered; Non-CMR, Non-PFAS, Non-nano; Warning: contraindicated for phenylketonuria (PKU) patientsPhysical & Chemical Characteristics
Physical form White crystalline powder / granular
Odour Odourless, clean sweet taste, ~200× sweetness vs sucroseMelting / Decomposition point 242‑248 °C (decomposes)
Solubility in water Sparingly soluble (~10 g/L @20℃); solubility improves in warm water; practically insoluble in oils
Solubility Slightly soluble in ethanol; insoluble in ether and hydrocarbon solvents
Specific Rotation [α]₂₀/D (formic acid) +14.5° ~ +16.5°
pH (0.8 % aqueous solution) 4.5‑6.0
Bulk density 450‑650 kg/m³
Processing hint Thermal‑sensitive; hydrolyze under high‑temperature / low‑pH long‑term condition. Avoid high‑temperature baking processes. Keep sealed against moisture.Quality Requirements
| Test Parameter | Food FCC Grade | USP/EP/BP Pharma Grade | Test Method |
|---|---|---|---|
| Assay (on dried basis) | 98.0‑102.0 % | 98.0‑102.0 % | Titration |
| Specific Rotation [α]₂₀/D | +14.5° ~ +16.5° | +14.5° ~ +16.5° | Polarimetry |
| Loss on Drying | ≤4.5 % | ≤4.5 % | Gravimetry |
| Residue on Ignition | ≤0.20 % | ≤0.20 % | Gravimetry |
| Transmittance (430 nm) | ≥95 % | ≥95 % | Spectrophotometry |
| Heavy Metals (as Pb) | ≤10 ppm | ≤10 ppm | AAS |
| Arsenic (As) | ≤3 ppm | ≤3 ppm | AAS |
| Phenylalanine related impurity | ≤0.50 % | ≤0.50 % | HPLC |
| Total Aerobic Count | ≤100 CFU/g | ≤100 CFU/g | Microbiology |
| Mould & Yeast | ≤50 CFU/g | ≤50 CFU/g | Microbiology |
Main Functions & Recommended Applications
Beverage Industry: Zero‑calorie / low‑calorie carbonated drinks, instant powder drink, syrups.
Confectionery & Snack: Sugar‑free chewing gum, hard candy, mint, jelly, dairy desserts.
Table‑top sweetener: Compressed sweetener tablets and sachets for household use.
Pharmaceutical: Sweetener for chewable tablets, oral syrup, vitamin preparations (pharmacopoeia grade required).Important note:
Aspartame is heat‑sensitive; prolonged high‑temperature or strong acidic environment will cause hydrolysis and loss of sweetness. Contains phenylalanine, not suitable for PKU sufferers. End‑user shall validate suitability for own formulation and final application. Refer to SDS for full safety guidance.
Logistics & Storage Information
Packaging options: 25 kg fibre‑drum with inner PE liner; or as per request.
Lead‑time: Samples: 7-15 working days against deposit.
Storage condition: Keep container tightly closed. Store in cool, dry, well‑ventilated warehouse, keep away from heat source, alkali and oxidizing agents.
Shelf-life: 24 months under original sealed storage.
chemical.tnj
+8618949823763
tnjchem
2881500864