H-Gly-Phe-pNA TFA salt CAS 21027-72-5
| CAS No. | 21027-72-5 |
| Molecular Formula | C17H18N4O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
H-Gly-Phe-pNA TFA salt (CAS 21027-72-5), molecular formula C17H18N4O4C2HF3O2 and molecular weight 456.38 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, H-Gly-Phe-pNA TFA salt (C17H18N4O4C2HF3O2) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 456.38 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).
As a certified reference material (CRM), H-Gly-Phe-pNA TFA 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 | C17H18N4O4 C2HF3O2 |
| Molecular Weight | 456.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Recommended Standards
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- 2-[2-(Diphenylphosphino)phenyl]-4,5-dihydrooxazole (CAS 179117-13-6)
- 2-((4-Allyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(3-fluorophenyl)acetamide (CAS 586990-99-0)
- Methyl 6-methoxybenzo[b]thiophene-3-carboxylate (CAS 1093631-83-4)
- (E)-4-(tert-butyl)-N'-((1-(thiazol-2-yl)-1H-pyrrol-2-yl)methylene)benzohydrazide (CAS 691887-95-3)
- 3-(2-methylphenyl)propan-1-amine (CAS 76293-74-8)
- 4-(2-Chloro-5-methylphenoxy)aniline (CAS 72314-75-1)
- 6b-Hydroxycortisone (CAS 16355-28-5)
- D-Ile12-Tirzepatide (CAS CATO-CPTD788921)
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