Acarbose EP Impurity B CAS 1220983-54-9
| CAS No. | 1220983-54-9 |
| Molecular Formula | C26H43NO17 |
| Molecular Weight | 641.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C26H43NO17, Acarbose EP Impurity B contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 641.62 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).
Acarbose EP Impurity B (CAS 1220983-54-9) is a certified pharmaceutical impurity reference standard with the molecular formula C26H43NO17 and a molecular weight of 641.62 g/mol.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C26H43NO17 |
| Molecular Weight | 641.62 g/mol |
| Purity | >90% |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related Acarbose Standards
- Acarbose (CAS 56180-94-0)
- Acarbose EP Impurity A (CAS 1013621-79-8)
- Acarbose EP Impurity C (CAS 610271-07-3)
- Acarbose-d4 (CAS 1260619-60-0)
- Acarbose EP Impurity H (CAS 196944-81-7)
- Acarbose Impurity 11 (Mixture of Diastereomers) (CAS CATO-C4X-117311)
- Acarbose EP Impurity D (CAS 68128-53-0)
- Acarbose EP Impurity E (CAS CATO-C4X-11735)
Recommended Standards
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- Citalopram Impurity 92 (CAS 1803244-58-7)
- Raltegravir EP Impurity B (CAS 1193687-85-2)
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