N-Phthaloyl-L-alanine CAS 4192-28-3
| CAS No. | 4192-28-3 |
| Molecular Formula | C11H9NO4 |
| Molecular Weight | 219.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including N-Phthaloyl-L-alanine.
CATO supplies N-Phthaloyl-L-alanine (CAS 4192-28-3), a certified reference material (molecular formula C11H9NO4, MW 219.19 g/mol) for analytical method development and quality control.
N-Phthaloyl-L-alanine (C11H9NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures N-Phthaloyl-L-alanine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H9NO4 |
| Molecular Weight | 219.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related N Standards
Recommended Standards
- Bz-OSu (CAS 23405-15-4)
- 1-(6-Amino-5-nitro-1H-indol-1-yl)ethanone (CAS 1000343-09-8)
- Polaprezinc Impurity 10 (CAS 3339-73-9)
- 6-Oxo-1-phenyl-1,4,5,6-tetrahydro-1,2,4-triazine-3-carboxylic acid (CAS 1000933-58-3)
- Benzyl 4-phenylbutanoate (CAS 77100-93-7)
- 2-((1-(1h-Pyrazol-1-yl)propan-2-yl)amino)-N-allylpropanamide (CAS 1291322-16-1)
- 4,5-Dichloro-2-(difluoromethoxy)anisole (CAS 1807035-72-8)
- 8-Fluoro-4-hydroxyquinoline (CAS 63010-71-9)
- 3-(Thiophen-2-yl)cyclobutan-1-one (CAS 1533786-59-2)
- 4-(4-Butoxyphenyl)-1,3-thiazol-2-amine (CAS 15850-32-5)
- Obeticholic Acid Impurity 11 (CAS CATO-C4X-115311)
- N-(3-(Trifluoromethyl)phenyl)-1H-benzo[d]imidazole-2-carbothioamide (CAS 1105245-79-1)
- Th Standard Solution (CAS 7440-29-1)
- Semaglutide Impurity 177 (CAS CATO-C4X-2226177)
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