H-Met-Ala-Ser-OH CAS 17351-33-6
| CAS No. | 17351-33-6 |
| Molecular Formula | C11H21N3O5S |
| Molecular Weight | 307.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 307.37 g/mol gives H-Met-Ala-Ser-OH distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
H-Met-Ala-Ser-OH (CAS 17351-33-6) is a high-purity analytical reference standard with the molecular formula C11H21N3O5S and a molecular weight of 307.37 g/mol.
The molecular framework of H-Met-Ala-Ser-OH (C11H21N3O5S) is characterized by an amide group, a sulfone group, a carboxylic acid 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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-Met-Ala-Ser-OH 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 | C11H21N3O5S |
| Molecular Weight | 307.37 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
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- Tizanidine Nitroso Impurity 15 (CAS CATO-C4X-144515)
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- Semaglutide Impurity 167 (CAS CATO-C4X-2226167)
Why CATO?
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