H-Ala-Ala-Pro-pNA · HCl CAS 201732-27-6
| CAS No. | 201732-27-6 |
| Molecular Formula | C17H23N5O5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of H-Ala-Ala-Pro-pNA · HCl is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
H-Ala-Ala-Pro-pNA · HCl (CAS 201732-27-6), molecular formula C17H23N5O5HCl and molecular weight 413.86 g/mol, is a CATO reference standard with documented purity and traceability.
H-Ala-Ala-Pro-pNA · HCl (C17H23N5O5HCl) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), H-Ala-Ala-Pro-pNA · HCl 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 | C17H23N5O5 HCl |
| Molecular Weight | 413.86 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2014 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Recommended Standards
- Ethyl 4-amino-2-methylthiophene-3-carboxylate (CAS 768298-63-1)
- 2-Mercaptobenzimidazole-4,5,6,7-d4 (CAS 931581-17-8)
- 3-[(1,1-Dioxido-1,2-benzisothiazol-3-yl)amino]-1-propanol (CAS 68287-29-6)
- 1,4-Diamino-6-chloro-2-(phenethylthio)anthracene-9,10-dione (CAS 88605-81-6)
- 4,4′-Diamino-2-Methylazobenzene (CAS 43151-99-1)
- 3-Chloro-7-methyl-1H-pyrrolo[3,2-c]pyridine (CAS 1000341-46-7)
- 1-(2,5-dimethoxyphenyl)-2-(4-fluorophenyl)ethanone (CAS 1097164-22-1)
- 1-(1-Methylcyclopropyl)ethane-1-sulfonyl chloride (CAS 1250242-38-6)
- (2-Chlorobenzyl)(methyl)sulfane (CAS 57984-15-3)
- Des-Phe22-Tirzepatide (CAS CATO-CPTD788951)
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