4-(2-Methylphenyl)-L-phenylalanine CAS 758685-64-2
| CAS No. | 758685-64-2 |
| Molecular Formula | C16H17NO2 |
| Molecular Weight | 255.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-(2-Methylphenyl)-L-phenylalanine (CAS 758685-64-2), molecular formula C16H17NO2 and molecular weight 255.31 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(2-Methylphenyl)-L-phenylalanine (C16H17NO2) contains a nitrogen-containing heterocyclic scaffold, 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 255.31 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 4-(2-Methylphenyl)-L-phenylalanine 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 | C16H17NO2 |
| Molecular Weight | 255.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 1 |
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- n-(1-{4-[(2-methylphenyl)methoxy]phenyl}ethylidene)hydroxylamine (CAS 1049158-80-6)
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Recommended Standards
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- 2-((4-Chlorobenzyl)thio)-5-((2,5-dimethylbenzyl)thio)-1,3,4-thiadiazole (CAS 676629-64-4)
- Procaine Impurity 22 (CAS CATO-C4X-262322)
- 4-Ethynyl-5-methylthiazole (CAS 1211591-59-1)
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- 2-methyl-5-(1,3,4-oxadiazol-2-yl)aniline (CAS 1016821-72-9)
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- Semaglutide Impurity 5 (CAS 23406-82-8)
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