Aspartame(CAS 22839-47-0)
| Purity | Grade | Package | Stock | Price | Quantity |
| 98% | RG | 5G | In Stock | 3 USD
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| 98% | RG | 25G | In Stock | 4 USD
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| 98% | RG | 100G | In Stock | 7 USD
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| 98% | RG | 500G | In Stock | 21 USD
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| 98% | RG | 2.5KG | In Stock | 67 USD
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| 98% | RG | 25KG | In Stock | 659 USD
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Physical and chemical properties of 22839-47-0
Acidity coefficient |
pKa 3.19±0.01 (H2O t=25.0 I=0.100(NaCl))(Approximate);7.87±0.02(H2O t=25.0 I=0.100(NaCl))(Approximate) |
|---|---|
Boiling Point |
535.8±50.0 °C at 760 mmHg |
BRN |
2223850 |
Decomposition |
Photodecomposition of aspartame in aqueous solutions under different conditions of light intensity and pH were studied. The effects of photosensitizers (riboflavin and methylene blue) and ascorbic acid on aspartame stability in aqueous solutions at different pH under light were also studied. Light illumination significantly increased aspartame degradation in an aqueous solution (pH 7), indicating that aspartame was very unstable under the illuminated conditions. In the dark, 91% of aspartame in an aqueous solution at pH 7 remained after 10 h of storage. Under 5500 lux of light, however, 39% of aspartame in the solution was destroyed after 10 h of storage. Aspartame degradation under light followed simple zero-order reaction kinetics. The higher the light intensity, the greater the degradation of aspartame. The relative reaction rate for the destruction of aspartame under 0, 1100, 3300 and 5500 lux was 1:1.42:2.80:4.61. The photodecomposition rate of aspartame varied with the pH of the system. Aspartame degradation was fastest at pH 7.0, followed by pH 4.0 and pH 6.0, in decreasing order. Addition of 4.8 ppm riboflavin or 4.8 ppm methylene blue significantly accelerated the aspartame decomposition at pH 7 in the presence of light. There were, however, no significant photosensitizing effects of these sensitizers on aspartame destruction at pH 6 and pH 4. Addition of 1.2x10-4 increased the aspartame degradation at pH 7.0, but did not affect the destruction rate of aspartame at pH 6.0 and pH 4.0. |
Density |
1.3±0.1 g/cm3 |
Exact Mass |
294.121582 |
Flash Point |
277.8±30.1 °C |
Index of Refraction |
1.557 |
LogP |
log Kow = 0.07 (est) |
Melting Point |
246.5 °C |
Merck |
14,839 |
Molecular Formula |
C14H18N2O5 |
Molecular Weight |
294.303 |
Odor |
Odorless |
pH |
0.8% Solution in water has a pH of about 5.3. |
PSA |
118.72000 |
Specific rotation |
15.5 º (c=4, 15N formic acid) |
Stability |
Stable. Incompatible with strong oxidizing agents. |
Storage condition |
2-8°C |
Vapour Pressure |
2.84X10-11 mm Hg at 25 °C (est) |
Water Solubility |
Soluble in formic acid, dimethyl sulfoxide. Sparingly soluble in water and ethanol. |
Spectrums of 22839-47-0
1.The NMR spectrum displayed on the page is a pre-sale reference spectrum and may differ from that of the actual received batch.
2.The accompanying documentation will include the NMR spectrum and purity analysis data for the shipped batch.
Retrosynthesis analysis of 22839-47-0
Cas:13433-09-5
Cas:2577-90-4
Q&A for CAS 22839-47-0
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Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.
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Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.
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Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.
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Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.
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Download COA of 22839-47-0
Operate under the ISO 9001 system
