Ertapenem Impurity 29 CAS 1150883-75-2
| CAS No. | 1150883-75-2 |
| Molecular Formula | C22H27N3O8S |
| Molecular Weight | 493.53 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ertapenem Impurity 29 (CAS 1150883-75-2), a pharmacopoeial impurity reference standard (molecular formula C22H27N3O8S, MW 493.53 g/mol) used for the identification and quantification of trace impurities in APIs.
Ertapenem Impurity 29 (C22H27N3O8S) contains a flavonoid core, an amide group, a sulfone 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C22H27N3O8S |
| Molecular Weight | 493.53 g/mol |
| Purity | >90% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ertapenem Standards
- Ertapenem Impurity 12 (CAS CATO-C4X-163312)
- Ertapenem impurity 49 (CAS 357154-27-9)
- Ertapenem Impurity 50 (CAS CATO-C4X-163350)
- Ertapenem Side Chain Enantiomer 2 Hydrochloride (CAS 503607-49-6)
- Ertapenem Impurity 18 (CAS CATO-C4X-163318)
- Ertapenem Impurity 55 (CAS CATO-C4X-163355)
- Ertapenem Impurity 37 (CAS CATO-C4X-163337)
- Ertapenem Impurity 15 (CAS CATO-C4X-163315)
Recommended Standards
- N-Methyl-2-[(4-methyl-5-{2-[3-methyl-5-(trifluoromethyl)-1H-pyrazol-1-yl]-1,3-thiazol-4-yl}-4H-1,2,4-triazol-3-yl)sulfanyl]-N-phenylacetamide (CAS 956263-82-4)
- 9-[(4-Carboxy-2,6-dimethylphenoxy)carbonyl]-10-(3-sulfopropyl)acridinium Inner Salt (>90%) (CAS 946423-58-1)
- Aspoxicillin (CAS 63358-49-6)
- (S)-4-Nitrophenyl 3-(4-(benzyloxy)phenyl)-2-((tert-butoxycarbonyl)amino)propanoate (CAS 13512-59-9)
- Vecuronium Bromide EP Impurity B (CAS 15500-66-0)
- Butylphthalide Impurity 2 (CAS 551-08-6)
- Isotretinoin EP Impurity H (CAS 71748-58-8)
- Methyl 3-(Methylsulfonyl)benzoate (CAS 22821-69-8)
- 2-Nitro-5-(thiophen-2-yl)aniline (CAS 849235-53-6)
- 3-(2-Fluoro-4-methylphenyl)-2-methylpropan-1-ol (CAS 2145856-41-1)
- 5,6-Dimethyl-1H-benzo[d]imidazol-1-amine (CAS 78288-57-0)
- Neopentylzinc bromide 0.5M in Tetrahydrofuran (CAS 676137-12-5)
- L-Isoleucyl-L-cysteine (CAS 117525-90-3)
- Cyclolinopeptide B (CAS 193139-41-2)
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