Ertapenem Impurity CAS 770703-11-2
| CAS No. | 770703-11-2 |
| Molecular Formula | C12H14N2O4 |
| Molecular Weight | 250.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Ertapenem Impurity (CAS 770703-11-2, C12H14N2O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Ertapenem Impurity (C12H14N2O4) contains an amino-acid-derived structure, an amide 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. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C12H14N2O4 |
| Molecular Weight | 250.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
Related Ertapenem Standards
- Ertapenem Impurity 16 (CAS 266337-30-8)
- Ertapenem Impurity Pro-maba (CAS 724700-26-9)
- Ertapenem Impurity C344 (CAS 135042-12-5)
- Ertapenem Impurity C28 (CAS 147266-92-0)
- Ertapenem Impurity C90 (CAS 87691-27-8)
- Ertapenem Impurity 61 (CAS CATO-C4X-163361)
- Ertapenem Impurity 17 (CAS CATO-C4X-163317)
- Ertapenem M1 (CAS 357154-28-0)
Recommended Standards
- Diphenylmethan-4,4'-diisocyanate (CAS 101-68-8)
- Cyclo(-Ser-Tyr) (CAS 21754-31-4)
- (2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl butyrate (CAS 86784-51-2)
- 2,6-Bis(pyridin-2-yl)pyrimidin-4-ol (CAS 10239-68-6)
- Tetrabenazine Impurity 45 (CAS CATO-C4X-274845)
- N-Nitroso Lomustine EP Impurity C (CAS 18664-26-1)
- Cefditoren Impurity 16 (CAS CATO-C4X-135816)
- Diethyl 2-(2-chloronicotinamido)malonate (CAS 219793-85-8)
- Ethyl (2R,3R)-3-amino-2-hydroxy-3-phenylpropanoate (CAS 481054-47-1)
- 3-(isothiocyanatomethyl)pyridine (CAS 36810-90-9)
- 1-chloro-3-(2-hydroxyethoxy)propan-2-ol (CAS 18371-74-9)
- [4-[[5-Chloro-4-(methylamino)-2-pyrimidinyl]amino]-3-methoxyphenyl]-4-morpholinylmethanone (CAS 1351758-81-0)
- (2-Methoxyphenyl)hydrazine xhydrochloride (CAS 57396-67-5)
- Semaglutide impurity 99 (CAS CATO-C4X-222699)
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