Heptakis(2,3,6-tri-O-methyl)-beta-cyclodextrin
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| 0 Metric Ton |
Negotiable |
- Min.Order :0 Metric Ton
- Purity: > 97%
Keywords
TRIMEB methyl cyclodextrin cyclodextrin
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Test
| Method | Result | |
| Appearance | Visual | white to slight yellow powder |
| Identification 1 | HPLC (EP 2.2.29) | tR of the major peak corresponds to that of the reference |
| Identification 2 | NMR (EP 2.2.33) | conform to theoretical structure |
| Appearance of 10% aqueous solution | Visual (EP 2.2.1-2) | clear and colorless |
| Residual BCD content | TLC (EP 2.2.27) | max. 0.25% |
| Residual methyl iodide content | GC (EP 2.2.28) | max. 0.1% |
| Methanol content | GC (EP 2.2.28) | max. 0.3% |
|
Residual solvents: THF |
GC (EP 2.2.28) |
max. 720 ppm |
| Assay | HPLC (EP 2.2.29) | min. 97.0% |
|
Conductivity (25 °C, 1% solution in water) |
Conductometry (EP 2.2.38) | < 100 μS/cm |
|
Light absorbing impurities (1%) |
UV-Vis (EP 2.2.25) |
A230 - A350: max. 0.1 A350 - A720: max. 0.02 |
| Loss on drying | EP 2.2.32 | max. 5.0% |
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