Z-Phe-DL-Ala-fluoromethylketone CAS 197855-65-5
| CAS No. | 197855-65-5 |
| Molecular Formula | C21H23FN2O4 |
| Molecular Weight | 386.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Z-Phe-DL-Ala-fluoromethylketone (CAS 197855-65-5), a certified reference material (molecular formula C21H23FN2O4, MW 386.42 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Z-Phe-DL-Ala-fluoromethylketone is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 386.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C21H23FN2O4 |
| Molecular Weight | 386.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°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.) | 2013 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- Diphenyl-1-pyrenylphosphine (CAS 110231-30-6)
- N-(4-cyanophenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide (CAS 1105207-70-2)
- tert-Butyl ((3R,5S,6R)-6-methyl-2-oxo-5-phenyl-1-(2,2,2-trifluoroethyl)piperidin-3-yl)carbamate (CAS 1456803-36-3)
- N-(2-(Imidazo[1,2-a]pyridin-2-yl)phenyl)-5-(thiophen-2-yl)isoxazole-3-carboxamide (CAS 1797729-81-7)
- 4-Borono-2-(dimethylamino)benzoic acid (CAS 890839-19-7)
- 3,3-Diphenyl-L-alanine (CAS 149597-92-2)
- 2-(Benzylsulfanyl)-4-[(2,4-dichlorophenyl)sulfanyl]thieno[3,2-d]pyrimidine (CAS 339018-96-1)
- Daunorubicin Impurity N3 (CAS 29742-69-6)
- 4-Methyl-2-(4-methylbenzenesulfonyl)-5H,6H,7H-cyclopenta[d]pyrimidine (CAS 343374-42-5)
- 1-{4-[(4-ethyl-4,5-dihydro-1,3-thiazol-2-yl)amino]phenyl}ethan-1-one (CAS 380346-04-3)
- 2,2-dimethylheptanedinitrile (CAS 500310-59-8)
- 5-Azaspiro[2.5]octane-1-carboxylic acid hydrochloride (CAS 1909337-63-8)
- 3-(sec-Butyl)-6-isopropylpiperazine-2,5-dione (CAS 104068-43-1)
- Semaglutide Impurity 164 (CAS CATO-C4X-2226164)
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