[7-D-Leu]Cetrorelix CAS CATO-C4X-201461
| CAS No. | CATO-C4X-201461 |
| Molecular Formula | C70H92ClN17O14 |
| Molecular Weight | 1431.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, [7-D-Leu]Cetrorelix is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 1431.04 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
[7-D-Leu]Cetrorelix (CAS CATO-C4X-201461), molecular formula C70H92ClN17O14 and molecular weight 1431.04 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C70H92ClN17O14 |
| Molecular Weight | 1431.04 g/mol |
| Purity | ≥95% |
| 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
- [5-D-Tyr]Cetrorelix (CAS CATO-C4X-201456)
- 4',4''',4''''',4''''''',4''''''''',4'''''''''''-(9,10-Dhydro-9,10-[1,2]benzenoanthracene-2,3,6,7,14,15-hexayl)hexakis([1,1'-biphenyl]-4-carboxylic acid) (CAS 2524700-15-8)
- [2-4Cpa]Cetrorelix (CAS CATO-C4X-201455)
- Deamidated Cetrorelix (CAS CATO-C4X-201413)
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- Semaglutide impurity 45 (CAS CATO-C4X-222645)
Why CATO?
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