β-Cyclodextrin/epichlorohydrin copolymer CAS 25655-42-9
| CAS No. | 25655-42-9 |
| Molecular Formula | C42H70O35 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
β-Cyclodextrin/epichlorohydrin copolymer (CAS 25655-42-9), molecular formula C42H70O35C3H5ClO and molecular weight 1227.51 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C42H70O35C3H5ClO, β-Cyclodextrin/epichlorohydrin copolymer contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 1227.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 C3H5ClO |
| Molecular Weight | 1227.51 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Cl-containing |
Related Cyclodextrin Standards
- α-Cyclodextrin (CAS 10016-20-3)
- α-Cyclodextrin, 2-hydroxypropyl ethers (CAS 128446-33-3)
- ß-Cyclodextrin HPB (CAS 128446-35-5)
- Methyl-β-cyclodextrin (CAS 128446-36-6)
- β-Cyclodextrin, 6A-acetate (CAS 131991-46-3)
- α-Cyclodextrin, 2A,2B,2C,2D,2E,2F,6A,6B,6C,6D,6E,6F-dodeca-O-methyl-, hexakis(trifluoroacetate) (CAS 141803-94-3)
- b-Cyclodextrin ·x(Sulfobutyl Ethers) ·x(Sodium Salts) (CAS 182410-00-0)
- Alpha-cyclodextrin phosphate sodium salt (DS~2-6) (CAS 199684-60-1)
Recommended Standards
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- 1-(3,4-Dichlorobenzyl)-N'-(4-methylbenzoyl)piperidine-4-carbohydrazide (CAS 478078-38-5)
- 1,2,4,5-Benzenetetracarboxylic acid, 1,4-dimethyl ester, polymer with 1,5-dimethyl dihydrogen 1,2,4,5-benzenetetracarboxylate and 4,4'-[[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis(4,1-phenyleneoxy)]bis[benzenamine] (CAS 125304-20-3)
- [(3R,5S,7ar)-rel-3,5-Bis(4-fluorophenyl)tetrahydro-1H-oxazolo[3,4-c]oxazol-7a-yl]methanol (CAS 935467-97-3)
- (4-Bromo-5-cyclopropoxypyridin-2-yl)methanamine (CAS 1243313-52-1)
- Toltrazuril Impurity 1 HCl (CAS 94155-78-9（free base）)
- (2-Chloro-6-fluorophenyl)(2-(methylthio)-4,5-dihydro-1H-imidazol-1-yl)methanone (CAS 851863-30-4)
- Peptide Impurity 27 (CAS 1350456-68-6)
Why CATO?
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