D-Ser4 Cetrorelix CAS CATO-C4X-201420
| CAS No. | CATO-C4X-201420 |
| Molecular Formula | C70H92ClN17O14 |
| Molecular Weight | 1431.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
D-Ser4 Cetrorelix (CAS CATO-C4X-201420), molecular formula C70H92ClN17O14 and molecular weight 1431.04 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, D-Ser4 Cetrorelix (C70H92ClN17O14) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 33.0, corresponding to approximately 33 ring(s) or double-bond equivalent(s). With a molecular weight of 1431.04 g/mol, it falls into the high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), D-Ser4 Cetrorelix 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 | C70H92ClN17O14 |
| Molecular Weight | 1431.04 g/mol |
| Purity | 97%+ |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 33.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 17 |
Recommended Standards
- Cetrorelix (CAS 120287-85-6)
- [6-Cit]Cetrorelix (CAS CATO-C4X-201451)
- (2S)-N-[(1S)-2-[4-[(6aS)-3-[3-[[(6aS)-2-methoxy-8-(4-methoxyphenyl)-11-oxo-6a,7-dihydropyrrolo[2,1-c][1,4]benzodiazepin-3-yl]oxy]propoxy]-2-methoxy-11-oxo-6a,7-dihydropyrrolo[2,1-c][1,4]benzodiazepin-8-yl]anilino]-1-methyl-2-oxo-ethyl]-2-[3-[2-[2-[2-[2-[[4-(2-azatricyclo[10.4.0.0⁴⁹]hexadeca-1(16),4,6,8,12,14-hexaen-10-yn-2-yl)-4-oxo-butanoyl]amino]ethoxy]ethoxy]ethoxy]ethoxy]propanoylamino]-3-methyl-butanamide (CAS 2241644-09-5)
- [1-2Nal]Cetrorelix (CAS CATO-C4X-201454)
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