Cefcapene Impurity 41 CAS 140128-29-6
| CAS No. | 140128-29-6 |
| Molecular Formula | C14H20N2O4S |
| Molecular Weight | 312.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Cefcapene Impurity 41 (C14H20N2O4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 312.38 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Cefcapene Impurity 41 (CAS 140128-29-6), a pharmacopoeial impurity reference standard (molecular formula C14H20N2O4S, MW 312.38 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
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 | C14H20N2O4S |
| Molecular Weight | 312.38 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Cefcapene Standards
- Cefcapene Impurity 42 (CAS CATO-C4X-182442)
- Cefcapene Impurity 62 (CAS CATO-C4X-182462)
- Cefcapene side-chain acid transisomer (CAS 159860-40-9)
- Cefcapene Impurity 6 (CAS 86978-24-7)
- Cefcapene Impurity 70 (CAS CATO-C4X-182470)
- Cefcapene Impurity 71 (CAS CATO-C4X-182471)
- Cefcapene Impurity 95 (CAS CATO-C4X-182495)
- Cefcapene Impurity 34 (CAS 158743-37-4)
Recommended Standards
- Ampicillin Impurity 23 (CAS CATO-C4X-144323)
- Sildenafil Impurity 2 (CAS 332374-42-2)
- (S)-N-(2-(4-Isopropyl-4,5-dihydrooxazol-2-yl)-6-methoxyphenyl)methanesulfonamide (CAS 546141-34-8)
- Benzylpenicillin Impurity 11 (CAS 118-53-6)
- Cefathiamidine Impurity 20 (CAS CATO-C4X-133720)
- Levosimendan Impurity 50 (CAS 1630760-89-2)
- Sorafenib Impurity 39 (CAS CATO-C4X-112439)
- Lithium (5-cyanopyridin-2-yl)triisopropoxyborate (CAS 1048030-52-9)
- 4-[(2-Aminophenyl)sulfanyl]-3-nitrobenzenecarbaldehyde O-methyloxime (CAS 860786-01-2)
- 2,2,5,5-Tetramethyltetrahydrofuran-3-carboxylic Acid (CAS 1536314-14-3)
- 3-Amino-1-fluorocycloheptane-1-carboxylic acid (CAS 1427379-11-0)
- 3-Methylpyrazolo[1,5-a]pyrimidin-7-amine (CAS 1196-04-9)
- Fluticasone Impurity 84 (CAS CATO-C4X-165084)
- Semaglutide impurity 200 (CAS CATO-C4X-2226200)
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