Aspartame EP Impurity C CAS 63-91-2
| CAS No. | 63-91-2 |
| Molecular Formula | C9H11NO2 |
| Molecular Weight | 165.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Aspartame EP Impurity C (C9H11NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Aspartame EP Impurity C (CAS 63-91-2) is a certified pharmaceutical impurity reference standard with the molecular formula C9H11NO2 and a molecular weight of 165.19 g/mol.
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.
CATO manufactures Aspartame EP Impurity C 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 | C9H11NO2 |
| Molecular Weight | 165.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Aspartame Standards
Recommended Standards
- Ilaprazole Impurity 162 (CAS CATO-C4X-1130162)
- Eltrombopag Impurity 158 (CAS CATO-C4X-1198158)
- Sorafenib Impurity 50 (CAS 1065074-98-7)
- Paracetamol EP Impurity B (CAS 1693-37-4)
- Clebopride EP Impurity B (CAS 50541-93-0)
- Crisaborole Impurity 46 (CAS 1194-02-1)
- Phenylephrine Impurity 84 (CAS CATO-C4X-146784)
- N1-(3-(4-(Dimethylamino)phenyl)propyl)-N2-(thiophen-2-ylmethyl)oxalamide (CAS 954042-18-3)
- Palbociclib Impurity 166 (CAS CATO-C4X-1125166)
- 2-Hydroxy-4-methoxynicotinaldehyde (CAS 1289172-27-5)
- 2-Bromo-4-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)phenol (CAS 2096994-64-6)
- N-((5-(3-Methoxyphenyl)-1H-1,2,4-triazol-3-yl)methyl)-4-methylaniline (CAS 1171933-87-1)
- 4,6-Diamino-1-(4-fluorophenyl)-2-oxo-2,3-dihydro-1h-pyrrolo[2,3-b]pyridine-5-carbonitrile (CAS 878466-56-9)
- D-Trp25-Tirzepatide (CAS CATO-CPTD788909)
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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