Limaprost Impurity 21 CAS CATO-C4X-214521
| CAS No. | CATO-C4X-214521 |
| Molecular Formula | C22H36O5 |
| Molecular Weight | 380.53 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Limaprost Impurity 21 is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Limaprost Impurity 21 (CAS CATO-C4X-214521, C22H36O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Limaprost Impurity 21 (C22H36O5) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 380.53 g/mol, it falls into the moderately-high-molecular-weight range. 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.
CATO manufactures Limaprost Impurity 21 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 | C22H36O5 |
| Molecular Weight | 380.53 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Limaprost Standards
Recommended Standards
- Benzydamine Hydrochloride EP Impurity D (CAS 1337966-15-0)
- SNS 032 (CAS 345627-80-7)
- Cabergoline EP Impurity D (CAS 85329-86-8)
- 5-[1-(Ethylsulfonyl)piperidin-3-yl]-4-(4-methylbenzyl)-4H-1,2,4-triazole-3-thiol (CAS 932875-72-4)
- Baclofen EP Impurity A (CAS 22518-27-0)
- Vonoprazan Impurity 163 (CAS CATO-C4X-1020163)
- Testosterone Impurity 46 (CAS CATO-C4X-243246)
- N-(2-Bromobenzyl)propionamide (CAS 915921-40-3)
- 3-(5-(4-Bromophenyl)-1,2,4-oxadiazol-3-yl)morpholine (CAS 1707571-60-5)
- Racemic RepaglinideRacemic Repaglinide (CAS 108157-53-5)
- Ethyl 5-[4-(2-methoxyethoxy)phenyl]-5-oxovalerate (CAS 1049131-11-4)
- Carbamazepine 10,11-Epoxide-13C,d2 (Major)(Discontinued. See C175854.) (CAS 1189497-48-0)
- 6H-Thieno[2,3-b]pyrrole (CAS 250-79-3)
- [3,5 Diiodo-Tyr7] Peptide T (CAS 128551-40-6)
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