D-Phe-D-Phe-L-Leu-D-Lys-4-aminohexahydropyridine-4-carboxylic acid CAS CATO-CPTD788773
| CAS No. | CATO-CPTD788773 |
| Molecular Formula | C36H53N7O6 |
| Molecular Weight | 679.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies D-Phe-D-Phe-L-Leu-D-Lys-4-aminohexahydropyridine-4-carboxylic acid (CAS CATO-CPTD788773), a certified reference material (molecular formula C36H53N7O6, MW 679.85 g/mol) for analytical method development and quality control.
D-Phe-D-Phe-L-Leu-D-Lys-4-aminohexahydropyridine-4-carboxylic acid (C36H53N7O6) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), D-Phe-D-Phe-L-Leu-D-Lys-4-aminohexahydropyridine-4-carboxylic acid 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 | C36H53N7O6 |
| Molecular Weight | 679.85 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 |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
Recommended Standards
- D-Phe- D-Phe-D-Leu-L-Lys-4-aminohexahydropyridine-4-carboxylic acid (CAS CATO-CPTD788772)
- Phe-Phe-D-Leu-D-Lys-4-aminohexahydropyridine-4-carboxylic acid (CAS CATO-CPTD788784)
- H-L-Phe-D-Phe-L-Leu-L-Lys-γ-Pip-OH (CAS CATO-CPTD788750)
- H-D-Phe-D-Phe-D-Leu-D-Lys-Pip-OH Acetate (CAS CATO-CPTD788816)
- (2R,4R)-1-acetyl-4-hydroxypyrrolidine-2-carboxylic acid (CAS 37712-75-7)
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