Ertapenem Impurity 19 CAS 866317-77-3
| CAS No. | 866317-77-3 |
| Molecular Formula | C29H32N4O7S |
| Molecular Weight | 580.65 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 580.65 g/mol gives Ertapenem Impurity 19 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ertapenem Impurity 19 (CAS 866317-77-3) is a certified pharmaceutical impurity reference standard with the molecular formula C29H32N4O7S and a molecular weight of 580.65 g/mol.
Structurally, Ertapenem Impurity 19 (C29H32N4O7S) 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 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 580.65 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Ertapenem Impurity 19 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C29H32N4O7S |
| Molecular Weight | 580.65 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Ertapenem Standards
- Ertapenem Impurity 56 (CAS CATO-C4X-163356)
- Ertapenem Impurity 53 (CAS CATO-C4X-163353)
- Ertapenem Impurity 21 (CAS CATO-C4X-163321)
- Ertapenem Impurity 48 (CAS CATO-C4X-163348)
- Ertapenem Impurity N6 (CAS 866186-68-7)
- Ertapenem Impurity 6 (CAS CATO-C4X-16336)
- Ertapenem Impurity 4 (CAS CATO-C4X-16334)
- Ertapenem Impurity 15 (CAS CATO-C4X-163315)
Recommended Standards
- Ticagrelor Impurity 180 (CAS CATO-C4X-1093180)
- Ticagrelor Impurity 147 (CAS CATO-C4X-1093147)
- Euphorbia factor L7b (CAS 93550-95-9)
- (4S,4'S)-2,2'-((Phenylphosphinediyl)bis(2,1-phenylene))bis(4-benzyl-4,5-dihydrooxazole) (CAS 2368937-52-2)
- Bromfenac Impurity 79 (CAS CATO-C4X-200279)
- Maribavir Impurity 6 (CAS CATO-C4X-30076)
- Ipriflavone Impurity 3 (CAS 13057-73-3)
- 2-(2-(2-((1-(4,4-Dimethyl-2,6-dioxocyclohexylidene)ethyl)amino)ethoxy)ethoxy)acetic acid (CAS 1263045-93-7)
- 4-(Benzyloxy)-3-bromo-5-ethoxybenzaldehyde (CAS 428476-06-6)
- α-(2-Oxopyrrolidino)valerophenone (CAS 1220881-04-8)
- 90481-32-6 1,4-Dideoxy-1,4-iminothreitol 3,4-Pyrrolidinediol, (3S-trans)- 1,4-Ddit 1,4-Dideoxy-1,4-imino-L-threitol (CAS 90481-32-6)
- Estrone Enol Diacetate (CAS 20592-42-1)
- Pinosylvin (CAS 22139-77-1)
- Tirzepatide Impurity 11 TFA salt (CAS CATO-C4X-324011)
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