(Lys1?,Arg1?,Leu2?)-VIP (1-7)-GRF (8-27) trifluoroacetate salt CAS 201995-58-6
| CAS No. | 201995-58-6 |
| Molecular Formula | C142H240N44O38 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of (Lys1?,Arg1?,Leu2?)-VIP (1-7)-GRF (8-27) trifluoroacetate salt (C142H240N44O38C2HF3O2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
(Lys1?,Arg1?,Leu2?)-VIP (1-7)-GRF (8-27) trifluoroacetate salt (CAS 201995-58-6), molecular formula C142H240N44O38C2HF3O2 and molecular weight 3285.77 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C142H240N44O38 C2HF3O2 |
| Molecular Weight | 3285.77 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) | 45.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2014 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 44 |
Recommended Standards
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- Cyclopropyl(4-fluoro-3-methylphenyl)methanol (CAS 1181600-68-9)
- Methyl 4-dodecanamidobenzoate (CAS 355809-49-3)
- Diisopropyl sulfite (CAS 4773-13-1)
- 1,1,1-Trifluoro-3-phenyl-2-propanol (CAS 330-72-3)
- 5-(Thiophen-2-yl)isoxazole-3-carbaldehyde (CAS 465514-11-8)
- 6-(Difluoromethoxy)quinolin-4-ol (CAS 881657-25-6)
- Semaglutide Impurity 139 (CAS CATO-C4X-2226139)
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