Scopolamine Impurity 7 CAS 76822-34-9
| CAS No. | 76822-34-9 |
| Molecular Formula | C17H21NO5 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Scopolamine Impurity 7 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Scopolamine Impurity 7 (CAS 76822-34-9) is a certified pharmaceutical impurity reference standard with the molecular formula C17H21NO5HBr and a molecular weight of 400.27 g/mol.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution, Scopolamine Impurity 7 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 400.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C17H21NO5 HBr |
| Molecular Weight | 400.27 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Scopolamine Standards
- Scopolamine Hydrobromide (CAS 114-49-8)
- Scopolamine-d3DISCONTINUED PLEASE SEE S200002 (CAS 1202355-16-5)
- Scopolamine Butylbromide (CAS 149-64-4)
- Scopolamine Glucuronide (CAS 17660-02-5)
- Scopolamine Impurity 21 (CAS 2030294-83-6)
- Scopolamine Hydrobromide (1610001) (CAS 2489680-37-5)
- Scopolamine (CAS 51-34-3)
- (-)-Scopolamine Hydrochloride (CAS 55-16-3)
Recommended Standards
- Guaifenesin EP Impurity B (CAS 14007-09-1)
- Neratinib Impurity 54 (CAS CATO-C4X-113454)
- Abemaciclib Impurity 162 (CAS CATO-C4X-2937162)
- 4-Bromo-3-cyano-2-iodobenzoic acid (CAS 1807015-20-8)
- 6-Chloro-N-(2,4-dichlorophenyl)-2H-chromene-3-carboxamide (CAS 338761-06-1)
- (2-Fluorophenyl)(3-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)methanone (CAS 1396802-44-0)
- Atorvastatin Impurity 145 (CAS CATO-C4X-1132145)
- 143571-91-9 7-Methoxy-2-oxo-1,2-dihydroquinoline-3-carbaldehyde AZ0001-0360 (CAS 143571-91-9)
- (2-Chloro-5-(difluoromethyl)-6-fluoropyridin-3-yl)methanol (CAS 1805980-18-0)
- Semaglutide impurity 70 (CAS CATO-C4X-222670)
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