Acotiamide Impurity 7 CAS CATO-C4X-11147
| CAS No. | CATO-C4X-11147 |
| Molecular Formula | C21H30N4O5S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Acotiamide Impurity 7 (CAS CATO-C4X-11147) is a certified pharmaceutical impurity reference standard with the molecular formula C21H30N4O5SC4H6O4 and a molecular weight of 568.64 g/mol.
Acotiamide Impurity 7 (C21H30N4O5SC4H6O4) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
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 | C21H30N4O5S C4H6O4 |
| Molecular Weight | 568.64 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Acotiamide Standards
- Acotiamide Impurity M (CAS 118452-02-1)
- Acotiamide Impurity 21 (CAS 118452-04-3)
- Acotiamide Impurity 25 (CAS 163936-30-9)
- Acotiamide Impurity 4 (CAS 1809272-85-2)
- Acotiamide Impurity 3 (CAS 1824734-16-8)
- Acotiamide Impurity 23 (CAS 185103-81-5)
- Acotiamide Impurity 28 (CAS 185104-11-4)
- Acotiamide Impurity 7 (CAS 185105-13-9)
Recommended Standards
- Netupitant Impurity 37 (CAS CATO-C4X-122337)
- Alfacalcidol impurity 11 (CAS 2559769-58-1)
- Alogliptin Impurity 9 (CAS CATO-C4X-10999)
- 286460-72-8 D-(~13~C_3_)Alanine DTXSID70584029 (CAS 286460-72-8)
- 6-(2-Fluorophenyl)pyridin-3-ol (CAS 859538-49-1)
- 2-[(3-Thienylcarbonyl)amino]-1,3-oxazole-4-carboxylic acid (CAS 1350988-94-1)
- Cefixime Impurity 109 (CAS CATO-C4X-1139109)
- 4-(Methoxy(methyl)carbamoyl)phenyl acetate (CAS 1502843-07-3)
- 1-Bromo-N,N,N-trimethylmethanaminium bromide (CAS 5422-70-8)
- Semaglutide Impurity 144 (CAS 394210-59-4)
Why CATO?
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