Glycopyrronium Bromide EP Impurity K CAS 3900-93-4
| CAS No. | 3900-93-4 |
| Molecular Formula | C13H16O2 |
| Molecular Weight | 204.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Glycopyrronium Bromide EP Impurity K (CAS 3900-93-4, C13H16O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Glycopyrronium Bromide EP Impurity K is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 204.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO manufactures Glycopyrronium Bromide EP Impurity K 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 | C13H16O2 |
| Molecular Weight | 204.26 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1958 |
Related Glycopyrronium Standards
- Glycopyrronium Bromide EP Impurity O (CAS 618-88-2)
- Glycopyrronium Bromide impurity 12 (CAS 22065-57-2)
- Glycopyrronium Bromide EP Impurity J (CAS 427-49-6)
- Glycopyrronium Bromide Impurity 21 (CAS CATO-C4X-181721)
- Glycopyrronium Bromide EP Impurity M (CAS 5422-88-8)
- Glycopyrronium Bromide EP Impurity L (CAS 64471-47-2)
- Glycopyrronium Bromide EP Impurity L (CAS 19833-96-6)
- Glycopyrronium Bromide EP Impurity H (CAS 15206-55-0)
Recommended Standards
- Palonosetron Impurity 48 (CAS 2222298-80-6)
- Thioctic acid Impurity 34 (CAS CATO-C4X-152634)
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- Warfarin Impurity 11 (CAS CATO-C4X-178111)
- Brexpiprazole Impurity 65 (CAS 2247155-48-0)
- Flupentixol EP Impurity E (E and Z mixture) Oxalate (CAS CATO-C4X-189533)
- Semaglutide Impurity 122 (CAS CATO-C4X-2226122)
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- Methyl 2-(5-amino-4-carbamoylthiophen-2-yl)acetate (CAS 2163772-35-6)
- 2',4-Difluoro-[1,1'-biphenyl]-2-carbonitrile (CAS 879091-15-3)
- Cintirorgon (LYC-55716) (CAS 2055536-64-4)
- Methyl 4-(hydroxymethyl)bicyclo[2.2.2]octane-1-carboxylate (CAS 94994-15-7)
- Capivasertib Impurity 2 (CAS CATO-C4X-33122)
- Des-[Gly]31-Semaglutide(x TFA Salt) (CAS 873874-39-6(free base))
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