For-Met-Leu-Phe-Lys-OH CAS 67247-11-4
| CAS No. | 67247-11-4 |
| Molecular Formula | C27H43N5O6S |
| Molecular Weight | 537.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 537.71 g/mol gives For-Met-Leu-Phe-Lys-OH distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies For-Met-Leu-Phe-Lys-OH (CAS 67247-11-4), a certified reference material (molecular formula C27H43N5O6S, MW 537.71 g/mol) for analytical method development and quality control.
Structurally, For-Met-Leu-Phe-Lys-OH (C27H43N5O6S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 537.71 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C27H43N5O6S |
| Molecular Weight | 537.71 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Recommended Standards
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