Fmoc-2-amino-5-phenyl(2,5-Dimethyl)-L-pentanoic acid CAS 2349332-10-9
| CAS No. | 2349332-10-9 |
| Molecular Formula | C28H29NO4 |
| Molecular Weight | 443.53 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 Fmoc-2-amino-5-phenyl(2,5-Dimethyl)-L-pentanoic acid.
Fmoc-2-amino-5-phenyl(2,5-Dimethyl)-L-pentanoic acid (CAS 2349332-10-9) is a high-purity analytical reference standard with the molecular formula C28H29NO4 and a molecular weight of 443.53 g/mol.
Fmoc-2-amino-5-phenyl(2,5-Dimethyl)-L-pentanoic acid (C28H29NO4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C28H29NO4 |
| Molecular Weight | 443.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 1 |
Related Fmoc Standards
- Fmoc-DL-4-tert-butyl-Phe (CAS 1236257-38-7)
- Fmoc-2-amino-5-phenyl(3,5-Dimethyl)-L-pentanoic acid (CAS 2104031-58-3)
- Fmoc-p-tBu-Phe-OH (CAS 213383-02-9)
- Fmoc-β-(3-benzothienyl)-Ala-OH (CAS 177966-60-8)
- Fmoc-hyp-obz (CAS 439290-35-4)
- N-Fmoc-O-2-propen-1-yl-D-tyrosine (CAS 204269-35-2)
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- Fmoc-5-fluoro-DL-tryptophan (CAS 138775-55-0)
Recommended Standards
- 1,2-Dihydrodeflazacort (CAS 23557-89-3)
- (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-(tert-butyl)phenyl)propanoic acid (CAS 252049-14-2)
- O-(2,5,8,11,14,17,20,23,26-Nonaoxaoctacosan-28-yl)hydroxylamine (CAS 2098979-84-9)
- 9H-Fluoren-9-ylmethyl N-[(2S)-1-[4-(tert-butoxy)-phenyl]-3-oxopropan-2-yl]carbamate (CAS 154524-72-8)
- 2-Azetidinomethyl-3-methoxybenzophenone (CAS 898754-38-6)
- Tert-butyl ((3R,4S)-4-isopropylpyrrolidin-3-yl)carbamate (CAS 2306255-25-2)
- Trachelogenin (CAS 34209-69-3)
- (3-Cyclopropyl-4-hydroxyphenyl)boronic acid (CAS 1641540-52-4)
- 4-(Allyloxy)-3-methoxybenzonitrile (CAS 209916-32-5)
- 6-Fluoro-2-(3,3-difluoroazetidin-1-yl)nitrobenzene (CAS 1707581-10-9)
- 5-Bromo-4-(trifluoromethyl)thiophen-2-amine (CAS 1368301-44-3)
- 1-(Prop-2-yn-1-yl)indolin-2-one (CAS 37994-11-9)
- N-isobutyl-N-(3-methylisoxazole-5-carbonyl)glycine (CAS 1456228-68-4)
- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
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