CAVAMAX® W7 Pharma
Cyclodextrins
CAVAMAX® W7 is pharmaceutical grade beta-cyclodextrin from Wacker Chemie
AG.
CAVAMAX® W7 with seven glucose units has the mid-size cavity of the
parent cyclodextrins. It is useful for stabilizing, solubilizing or delivering intermediate size molecules, e.g. menthol.
Empirical formula: C42H70O35
CAS No.: 7585-39-9
| Property |
Inspection Method |
Value |
| Bulk density |
|
400 - 700 kg/m³ |
| Solubility in water at 25 °C |
|
18.5 g/l |
| pH |
|
5 - 8 |
The figures are intended as a guide and should not be used in preparing specifications.
| Property |
Inspection Method |
Value |
| Specific rotation |
USP |
160.0 - 164.0 ° |
| Residue on ignition |
USP |
max. 0.1 % |
| Reducing substances (determined as dextrose) |
USP |
max. 0.2 % |
| Light absorbing impurities of a 1% aqueous solution (230-350 nm) |
Photometry |
max. 0.1 |
| Light absorbing impurities of a 1% aqueous solution (350-750 nm) |
Photometry |
max. 0.05 |
| Water |
Halogen dryer |
max. 14.0 % |
| Heavy metals |
USP |
max. 5.0 ppm |
| Microorganisms |
USP |
max. 1000.0 /g |
| Salmonella/E.Coli Molds and yeasts |
USP |
max. 0.0 100.0 /g in 10g |
| Related substances (alpha-Cyclodextrin) |
PH. EUR. |
max. 0.25 % |
| Related substances (gamma-Cyclodextrin) |
PH. EUR. |
max. 0.25 % |
| Related substances (other sugars) |
PH. EUR. |
max. 0.5 % |
| Volatile Organics |
GC |
max. 5.0 ppm |
| Content (on dry basis) |
HPLC |
98.0 - 101.0 % |
| pH of a 1% aqueous solution |
PH. EUR. |
5.0 - 8.0 |
All the information provided is in accordance with the present state of our knowledge. Nonetheless, we disclaim any warranty or liability whatsoever and reserve the right, at any time, to effect technical alterations. The information provided, as well as the product’s fitness for an intended application, should be checked by the buyer in preliminary trials. Contractual terms and conditions always take precedence.
This disclaimer of warranty and liability also applies – particularly in foreign countries – with respect to third parties’ rights.