Ephedrine Hydrochloride EP Impurity A CAS 1798-60-3
| CAS No. | 1798-60-3 |
| Molecular Formula | C9H10O2 |
| Molecular Weight | 150.17 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, Ephedrine Hydrochloride EP Impurity A (CAS 1798-60-3, C9H10O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Ephedrine Hydrochloride EP Impurity A (C9H10O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 150.17 g/mol, it falls into the medium-molecular-weight range. 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 Ephedrine Hydrochloride EP Impurity A 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 | C9H10O2 |
| Molecular Weight | 150.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >90% |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Ephedrine Standards
Recommended Standards
- Loxoprofen Impurity 21 (CAS 492-37-5)
- Metaraminol Impurity 15 (CAS 13103-80-5)
- Rivastigmine EP Impurity H (CAS 586-37-8)
- Ethyl Benzoate (CAS 93-89-0)
- Piperazine Impurity 1 (CAS 37652-50-9)
- Posaconazole impurity 252 (CAS CATO-C4X-1208252)
- Hydroxychloroquine Impurity 46 (CAS CATO-C4X-183546)
- 2-(Difluoromethyl)-4-fluoro-3-methoxypyridine-5-methanol (CAS 1804425-40-8)
- Potassium bis(1,2-benzenediolato)(1,3-butadien-2-yl)silicate, min. 98% (CAS 1021940-25-9)
- 5,5-Diphenyloxazolidin-2-one (CAS 52481-82-0)
- 6-Chloro-5-cyclopropoxypyridin-2-amine (CAS 1243475-01-5)
- 3-(Trifluoromethyl)pyridine-2-sulfonamide (CAS 104040-76-8)
- 6-Ethyl-1H-pyrrolo[2,3-b]pyridine (CAS 533939-04-7)
- Semaglutide impurity 208 (CAS CATO-C4X-2226208)
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