Aclidinium bromide Impurity 4 CAS 28569-88-2
| CAS No. | 28569-88-2 |
| Molecular Formula | C12H12O3S2 |
| Molecular Weight | 268.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Aclidinium bromide Impurity 4 (CAS 28569-88-2, C12H12O3S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C12H12O3S2, Aclidinium bromide Impurity 4 contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 268.35 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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.
CATO manufactures Aclidinium bromide Impurity 4 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H12O3S2 |
| Molecular Weight | 268.35 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Sulfur Atoms | 2 |
Related Aclidinium Standards
- Aclidinium bromide Impurity 15 (CAS CATO-C4X-132515)
- Aclidinium bromide Impurity 2 (CAS 7333-07-5)
- Aclidinium bromide Impurity 14 (CAS CATO-C4X-132514)
- Aclidinium bromide Impurity 12 (CAS 320347-97-5)
- Aclidinium bromide Impurity 17 (CAS CATO-C4X-132517)
- Aclidinium bromide Impurity 8 (CAS 4075-58-5)
- Aclidinium bromide Impurity 1 (CAS 26878-13-7)
- Aclidinium bromide Impurity 16 (CAS CATO-C4X-132516)
Recommended Standards
- Glimepiride Impurity 19 (CAS 5467-84-5)
- Mianserin Impurity 82 (CAS CATO-C4X-136982)
- Celecoxib Impurity 70 (CAS 6397-71-3)
- Conjugated Estrogens EP Impurity J (CAS 474-86-2)
- Apixaban Impurity 76 (CAS 2456339-94-7)
- Baricitinib Impurity 69 (CAS CATO-C4X-226069)
- Argatroban Impurity 94 HCl (CAS 51298-62-5)
- 2-Chloroethyl (2,6-Dimethylphenyl)-carbamic Acid Ester (CAS 100129-63-3)
- (2S,5S)-1,2,5-Trimethylpiperazine (CAS 1152368-06-3)
- 5-(Bromomethyl)-2-nitrobenzonitrile (CAS 227016-67-3)
- 4-(5-Phenyl-1,3-oxazol-2-yl)butanoic acid (CAS 133602-40-1)
- POE (5) stearyl amine (CAS 26635-92-7)
- 4-(Benzyloxy)-3,5-dimethylphenol (CAS 147351-66-4)
- Tau Peptide (268-282) trifluoroacetate salt (CAS 330456-37-6)
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