Imipenem Impurity N4 CAS 81275-02-7
| CAS No. | 81275-02-7 |
| Molecular Formula | C13H25NO4Si |
| Molecular Weight | 287.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Imipenem Impurity N4 (C13H25NO4Si) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Imipenem Impurity N4 (CAS 81275-02-7), a pharmacopoeial impurity reference standard (molecular formula C13H25NO4Si, MW 287.43 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 Imipenem Impurity N4 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 | C13H25NO4Si |
| Molecular Weight | 287.43 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 1 |
Related Imipenem Standards
- Imipenem (CAS 64221-86-9)
- Imipenem Impurity 101 (CAS CATO-C4X-1662101)
- Imipenem Impurity 102 (CAS CATO-C4X-1662102)
- Imipenem Impurity 5 (CAS CATO-C4X-16625)
- Imipenem EP Impurity A (CAS 59995-64-1)
- Imipenem Impurity 3 (CAS 104154-92-9)
- Imipenem Impurity 104 (CAS CATO-C4X-1662104)
- Imipenem Impurity 108 (CAS CATO-C4X-1662108)
Recommended Standards
- Faropenem Impurity 47 (CAS 76899-07-5)
- a,a-Dicyclohexyl-2-pyridineethanol (CAS 102658-00-4)
- (1'R,3R,4R)-4-Acetoxy-3-(1'-tert-butyldimethylsilyloxyethyl)-2-azetidinone (3R,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsiloxy)ethyl]azetidin-2-one (3R,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]-2-azetidinone (3R,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]azetidinone 76855-69-1 [3R(1 inverted exclamation markaR,4R)]-(+)-4-Acetoxy-3-[1-(tert-butyldimethylsilyloxy)ethyl]-2-azetidinone [3R-[3|A(R*),4|A]]-4-(Acetyloxy)-3-[1-[[(1,1-dimethylethyl)dimethylsilyl]oxy]ethyl]-2-azetidinone (CAS 76855-69-1)
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- Trans-3-(2,2-Dichloroethenyl)-N,N-diethyl-2,2-dimethylcyclopropanecarboxamide (CAS 153653-46-4)
- 2-Benzylhydrazine-1-carbothioamide (CAS 7449-43-6)
- Semaglutide Sodium Salt (CAS CATO-C4X-222620)
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