Neostigmine impurity 47 CAS CATO-C4X-204247
| CAS No. | CATO-C4X-204247 |
| Molecular Formula | C11H16N3O3 |
| Molecular Weight | 238.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Neostigmine impurity 47 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 Neostigmine impurity 47 (CAS CATO-C4X-204247), a pharmacopoeial impurity reference standard (molecular formula C11H16N3O3, MW 238.26 g/mol) used for the identification and quantification of trace impurities in APIs.
Neostigmine impurity 47 (C11H16N3O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C11H16N3O3 |
| Molecular Weight | 238.26 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Neostigmine Standards
- Neostigmine Impurity 13 (CAS 4939-59-7)
- Neostigmine (CAS 59-99-4)
- Neostigmine impurity 33 (CAS CATO-C4X-204233)
- Neostigmine Impurity 51 (CAS 867020-61-9)
- Neostigmine Bromide EP Impurity C-d6 (Nor Neostigmine-d6) (CAS 2470126-73-7)
- Neostigmine Impurity 1 (CAS CATO-C4X-20421)
- Neostigmine Impurity N1 (CAS 2434689-89-9)
- Neostigmine EP Impurity C (CAS 16088-19-0)
Recommended Standards
- Paliperidone Impurity 104 (CAS CATO-C4X-1724104)
- 4-(1h-1,2,4-triaZol-1-ylmethyl)benzene-1-sulfonamide (CAS 1099632-71-9)
- Paliperidone Impurity 103 (CAS CATO-C4X-1724103)
- Ethyl 5-amino-1-(1,3-thiazol-2-yl)-1h-pyrazole-4-carboxylate (CAS 112267-06-8)
- Trifluridine Impurity 4 (CAS 4449-28-9)
- Prasugrel EP Impurity A (CAS 1391194-45-8)
- Allopurinol impurity 16 (CAS CATO-C4X-145816)
- 3-Chloro-6-hydrazinopyridazine (CAS 17284-97-8)
- 2-(Piperidin-1-yl)-5-(thiophen-2-yl)thiazolo[4,5-b]pyridine-7-carbohydrazide (CAS 852408-82-3)
- N-(2-(tert-Butyl)-3-cyclopropoxypyridin-4-yl)methanesulfonamide (CAS 1243372-50-0)
- 2-(Piperazin-1-ylsulfonyl)ethanol hydrochloride (CAS 2752440-67-6)
- Butyl 1-bromo-4-hydroxy-7-phenoxyisoquinoline-3-carboxylate (CAS 808115-53-9)
- Methyl 1-(2-aminoethyl)-1H-pyrazole-4-carboxylate (CAS 1023451-36-6)
- Semaglutide Impurity 16 (CAS CATO-C4X-222616)
Why CATO?
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