H-Leu-Gly-NH2 · HBr CAS 28671-28-5
| CAS No. | 28671-28-5 |
| Molecular Formula | C8H17N3O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 268.15 g/mol gives H-Leu-Gly-NH2 · HBr distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
H-Leu-Gly-NH2 · HBr (CAS 28671-28-5), molecular formula C8H17N3O2HBr and molecular weight 268.15 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of H-Leu-Gly-NH2 · HBr (C8H17N3O2HBr) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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-Leu-Gly-NH2 · HBr 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 | C8H17N3O2 HBr |
| Molecular Weight | 268.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
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- Semaglutide impurity 01 (CAS 1998701-31-7)
Why CATO?
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