H-Gly-Gly-Lys-Arg-OH acetate salt CAS 70921-63-0
| CAS No. | 70921-63-0 |
| Molecular Formula | C16H32N8O5 |
| Molecular Weight | 416.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 416.48 g/mol gives H-Gly-Gly-Lys-Arg-OH acetate salt distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
H-Gly-Gly-Lys-Arg-OH acetate salt (CAS 70921-63-0), molecular formula C16H32N8O5 and molecular weight 416.48 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of H-Gly-Gly-Lys-Arg-OH acetate salt (C16H32N8O5) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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. 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.
As a certified reference material (CRM), H-Gly-Gly-Lys-Arg-OH acetate salt 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 | C16H32N8O5 |
| Molecular Weight | 416.48 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 8 |
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