Asparagine EP Impurity C CAS 98490-54-1
| CAS No. | 98490-54-1 |
| Molecular Formula | C8H12N4O4 |
| Molecular Weight | 228.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Asparagine EP Impurity C is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 228.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 supplies Asparagine EP Impurity C (CAS 98490-54-1), a pharmacopoeial impurity reference standard (molecular formula C8H12N4O4, MW 228.21 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
CATO manufactures Asparagine 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 | C8H12N4O4 |
| Molecular Weight | 228.21 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, 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 4 |
Related Asparagine Standards
- Asparagine EP Impurity H (CAS 58471-52-6)
- Asparagine EP Impurity F (CAS 61365-15-9)
- Asparagine EP Impurity G (CAS CATO-C4X-24423)
- D-Asparagine tert-Butyl Ester (CAS 72287-71-9)
- D-Asparagine Methyl Ester (CAS 108258-31-7)
- L-Asparagine-D8 (CAS 1217457-69-6)
- 748757-99-5 L-Asparagine-15N2 L-Asparagine-15N2,d8 (CAS 748757-99-5)
- D-Asparagine (CAS 2058-58-4)
Recommended Standards
- Decitabine Impurity 33 (CAS CATO-C4X-113733)
- 1-(4-Fluorophenyl)-1H-indazol-5-ol (CAS 1034156-20-1)
- Decitabine Impurity 20 (CAS CATO-C4X-113720)
- 2-(4-Amino-2-fluorophenoxy)benzonitrile (CAS 1039334-67-2)
- Venetoclax Impurity 11 (CAS CATO-C4X-249511)
- Doxofylline Impurity 48 (CAS CATO-C4X-151348)
- Montelukast EP Impurity H (CAS 851755-56-1)
- 4-Hydroxyphthalamide (CAS 1243284-38-9)
- 2,3-Dichloro-4-methylbenzonitrile (CAS 1804896-39-6)
- 5-Chloro-6-(2,2,2-trifluoroethoxy)pyridine-3-carboxylic acid (CAS 953729-63-0)
- 2-(Ethylamino)-4-(3-methyl-1h-pyrazol-1-yl)butanamide (CAS 1342036-88-7)
- Methyl 2-mercapto-5-methoxybenzoate (CAS 55114-90-4)
- Methyl 3-(2-acetamidophenoxy)thiophene-2-carboxylate (CAS 900018-81-7)
- Des-Ser34-Gly33Tirzepatide (CAS CATO-CPTD788941)
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