Galantamine EP Impurity C CAS 21133-52-8
| CAS No. | 21133-52-8 |
| Molecular Formula | C17H23NO3 |
| Molecular Weight | 289.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Galantamine EP Impurity C 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.
CATO supplies Galantamine EP Impurity C (CAS 21133-52-8), a pharmacopoeial impurity reference standard (molecular formula C17H23NO3, MW 289.37 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Galantamine EP Impurity C is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 289.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C17H23NO3 |
| Molecular Weight | 289.37 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
Related Galantamine Standards
- Galantamine Impurity 11 (CAS 21041-10-1)
- Galantamine EP Impurity B (CAS 1668-85-5)
- Galantamine EP Impurity F (ent-Galantamine) (CAS 60384-53-4)
- Galantamine-d6 (CAS 1128109-00-1)
- Galantamine EP Impurity A (Galantaminone) (CAS 510-77-0)
- Epi-Galantamine N-Oxide (CAS 366485-18-9)
- Galantamine Impurity 5 (CAS 199014-26-1)
- Galantamine EP Impurity E (N-Desmethyl Galanthamine) (CAS 41303-74-6)
Recommended Standards
- Donepezil EP impurity A (CAS 120014-30-4)
- Atropine EP Impurity G ((R)-Isomer) ((R)-(-)-Littorine) (CAS 21956-47-8)
- 1-{4-[4-(3-Pyrrolidinyloxy)phenyl]-1-piperazinyl}-1-ethanone 4135AF 946760-59-4 C16H23N3O2 (CAS 946760-59-4)
- Atropine Impurity 37 (CAS 35721-90-5)
- Olaparib Impurity 116 (CAS CATO-C4X-1135116)
- Tepotinib impurity 22 (CAS 1369761-19-2)
- Albendazole EP Impurity A (CAS 80983-36-4)
- (R)-2-Amino-3-methoxy-1-propanol hydrochloride, 97% (CAS 253443-56-0)
- Flecainide EP Impurity D (CAS 35480-52-5)
- 2-methyl-4-(1,3,4-oxadiazol-2-yl)aniline (CAS 1017045-81-6)
- Sacubitril Lactam (CAS 1038925-22-2)
- (R)-2-((tert-butoxycarbonyl)amino)-6-phenylhexanoic acid (CAS 150722-67-1)
- (S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(3,5-dibromo-4-hydroxyphenyl)propanoic acid (CAS 201484-26-6)
- Pheromone Biosynthesis Activating Neuropeptide (Helicoverpa assulta, Heliothis zea) (CAS 122071-54-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com