Met-Enkephalin-Arg-Phe CAS 73024-95-0
| CAS No. | 73024-95-0 |
| Molecular Formula | C42H56N10O9S |
| Molecular Weight | 877.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Met-Enkephalin-Arg-Phe (CAS 73024-95-0), molecular formula C42H56N10O9S and molecular weight 877.00 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Met-Enkephalin-Arg-Phe (C42H56N10O9S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 20.0, corresponding to approximately 20 ring(s) or double-bond equivalent(s). With a molecular weight of 877.00 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C42H56N10O9S |
| Molecular Weight | 877.00 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 10 |
| Sulfur Atoms | 1 |
Related Met Standards
- Met-Enkephalin-Arg-Phe amide (CAS 78761-61-2)
- Leu-Enkephalin (sulfated) (CAS 80632-52-6)
- Leu-Enkephalin (CAS 58822-25-6)
- Leu-Enkephalin, amide (CAS 60117-24-0)
- Enkephalin(1-3) (CAS 21778-69-8)
- Met-Enkephalin, amide (CAS 60117-17-1)
- [Leu5]-Enkephalin Acetate (CAS 81678-16-2)
- Met-Enkephalin acetate salt (CAS 58569-55-4(Free Base))
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Why CATO?
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