Methyl-β-cyclodextrin CAS 128446-36-6
| CAS No. | 128446-36-6 |
| Molecular Formula | C56H98O35 |
| Molecular Weight | 1331.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Methyl-β-cyclodextrin (CAS 128446-36-6) is a high-purity analytical reference standard with the molecular formula C56H98O35 and a molecular weight of 1331.36 g/mol.
Structurally, Methyl-β-cyclodextrin (C56H98O35) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 1331.36 g/mol, it falls into the high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Methyl-β-cyclodextrin meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C56H98O35 |
| Molecular Weight | 1331.36 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
Related Methyl Standards
- β-Cyclodextrin, 6A-acetate (CAS 131991-46-3)
- β-Cyclodextrin (CAS 7585-39-9)
- α-Cyclodextrin (CAS 10016-20-3)
- α-Cyclodextrin, 2A,2B,2C,2D,2E,2F,6A,6B,6C,6D,6E,6F-dodeca-O-methyl-, hexakis(trifluoroacetate) (CAS 141803-94-3)
- α-Cyclodextrin, 2-hydroxypropyl ethers (CAS 128446-33-3)
- Alpha-cyclodextrin phosphate sodium salt (DS~2-6) (CAS 199684-60-1)
- beta-Cyclodextrin Hydrate (CAS 218269-29-5)
- gamma-Cyclodextrin Solution, 1,000 mg/L, 1 ml (CAS 91464-90-3)
Recommended Standards
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- 2-6-Dimethyl-β-cyclodextrin - Technical (CAS 51166-71-3)
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