Ac-Ala-Gln-Ala-pNA CAS 201677-60-3
| CAS No. | 201677-60-3 |
| Molecular Formula | C19H26N6O7 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ac-Ala-Gln-Ala-pNA is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Ac-Ala-Gln-Ala-pNA (CAS 201677-60-3), molecular formula C19H26N6O7H3N and molecular weight 467.48 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Ac-Ala-Gln-Ala-pNA (C19H26N6O7H3N) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 467.48 g/mol, it falls into the moderately-high-molecular-weight range. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C19H26N6O7 H3N |
| Molecular Weight | 467.48 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2014 |
| Nitrogen Atoms | 7 |
Recommended Standards
- 6-Chloro-4-Hydroxy-3-Phenyl-Pyridazine (CAS 40020-01-7)
- 4-chloro-N-(3,3-difluoro-2-methylbutan-2-yl)-1,3,5-triazin-2-amine (CAS 2303467-21-0)
- 6-(2-(Trifluoromethoxy)phenyl)nicotinaldehyde (CAS 898405-31-7)
- Dasatinib Impurity 25 (CAS CATO-C4X-160725)
- 5-(tert-Butoxycarbonyl)-2-(cyclopropylmethyl)-4,5,6,7-tetrahydro-2H-pyrazolo[4,3-c]pyridine-7-carboxylic acid (CAS 1391732-51-6)
- (R)-3-(4-BROMOPHENYL)CYCLOPENTAN-1-ONE (CAS 160678-57-9)
- (S)-1-(4-(tert-butyl)phenyl)-2-methoxyethan-1-amine (CAS 1270213-16-5)
- n-(Thiazol-5-ylmethyl)pyridin-3-amine (CAS 1340424-64-7)
- Benzyl 4-(((tert-butoxycarbonyl)amino)methyl)piperidine-1-carboxylate (CAS 172348-56-0)
- Semaglutide impurity 83 (CAS CATO-C4X-222683)
Why CATO?
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