H-Ala-Ala-Phe-chloromethylketone · TFA CAS 184901-82-4
| CAS No. | 184901-82-4 |
| Molecular Formula | C16H22ClN3O3 |
| 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.
CATO supplies H-Ala-Ala-Phe-chloromethylketone · TFA (CAS 184901-82-4), a certified reference material (molecular formula C16H22ClN3O3C2HF3O2, MW 453.84 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, H-Ala-Ala-Phe-chloromethylketone · TFA is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 453.84 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
As a certified reference material (CRM), H-Ala-Ala-Phe-chloromethylketone · TFA 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 | C16H22ClN3O3 C2HF3O2 |
| Molecular Weight | 453.84 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2009 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- (4-Bromo-3-fluoropyridin-2-yl)methanamine hydrochloride (CAS 2306277-49-4)
- 2-Fluoro-4-(methylsulfonyl)phenylboronic Acid (CAS 957060-85-4)
- (E)-((2,4-dimethylphenyl)diazenyl)(3-methoxyphenyl)methanone (CAS 2101208-36-8)
- Ethyl 4-bromo-5-methoxy-1H-indole-2-carboxylate (CAS 30933-69-8)
- 4-Bromo-5-cyano-2-iodobenzoic acid (CAS 1804381-86-9)
- 3-[(4-chloro-3-nitro-1h-pyrazol-1-yl)methyl]-4-methoxybenzaldehyde (CAS 514801-13-9)
- 2-(4-Chloro-5-methyl-1h-pyrazol-1-yl)ethan-1-amine hydrochloride (CAS 1197234-40-4)
- 1,2,2-Trichloropentafluoropropane (CAS 1599-41-3)
- 6-Bromo-2-chloro-3-iodotoluene (CAS 1799612-41-1)
- Semaglutide impurity 273 (CAS CATO-C4X-2226273)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com