β-Cyclodextrin CAS 7585-39-9
| CAS No. | 7585-39-9 |
| Molecular Formula | C42H70O35 |
| Molecular Weight | 1134.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
β-Cyclodextrin (CAS 7585-39-9) is a high-purity analytical reference standard with the molecular formula C42H70O35 and a molecular weight of 1134.98 g/mol.
Structurally, β-Cyclodextrin (C42H70O35) 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 1134.98 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C42H70O35 |
| Molecular Weight | 1134.98 g/mol |
| Purity | >95% |
| 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.) | 1959 |
Related Cyclodextrin Standards
- β-Cyclodextrin, 6A-acetate (CAS 131991-46-3)
- α-Cyclodextrin (CAS 10016-20-3)
- Methyl-β-cyclodextrin (CAS 128446-36-6)
- 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
- O-α-D-glucopyranosyl-(1→6A)-α-Cyclodextrin (CAS 10058-19-2)
- Ceftriaxone Impurity 12 (CAS CATO-C4X-116312)
- [DPro4,DTrp7,9] Substance P (4-11) (CAS 81039-85-2)
- Cefcapene Impurity 54 (CAS CATO-C4X-182454)
- Di-tert-butyl 5-methyl-2,4-dioxopyrimidine-1,3(2H,4H)-dicarboxylate (CAS 917081-58-4)
- 1-Methyl-4-nitro-1H-imidazole-5-carbaldehyde (CAS 85012-73-3)
- 5-Methoxy-3-methyl-1,2,3,4-tetrahydronaphthalen-1-amine (CAS 1483274-46-9)
- 4-Hydroxy-1,5-naphthyridine-3-carboxylic Acid (CAS 53512-10-0)
- n-((5-Methylthiophen-2-yl)methyl)butan-1-amine (CAS 893611-64-8)
- 3-(Azepan-1-ylmethyl)-5-fluoro-1H-indole (CAS 1891113-16-8)
- N-(3-(tert-butyl)-2-methyl-4-oxo-2,4-dihydroindeno[1,2-c]pyrazol-6-yl)cyclopropanecarboxamide (CAS 1024184-07-3)
- Ethyl 4-Amino-3-hydroxybenzoate (CAS 87081-52-5)
- 2-(Methylthio)-6-phenylnicotinonitrile (CAS 252058-91-6)
- Custom peptides (CAS CATO-CPTD788509)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com