Fmoc-(R)-3-Amino-4-(3-benzothienyl)-butyric acid CAS 269396-51-2
| CAS No. | 269396-51-2 |
| Molecular Formula | C27H23NO4S |
| Molecular Weight | 457.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C27H23NO4S, Fmoc-(R)-3-Amino-4-(3-benzothienyl)-butyric acid contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 457.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Fmoc-(R)-3-Amino-4-(3-benzothienyl)-butyric acid (CAS 269396-51-2), a certified reference material (molecular formula C27H23NO4S, MW 457.54 g/mol) for analytical method development and quality control.
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 | C27H23NO4S |
| Molecular Weight | 457.54 g/mol |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Fmoc Standards
- Fmoc-Cys(Boc-methyl)-OH (CAS 269730-62-3)
- Fmoc-R-3-amino-4-(4-tert-butylphenyl)-butyric acid (CAS 401916-49-2)
- Fmoc-S-3-amino-4-(4-tert-butylphenyl)-butyric acid (CAS 403661-86-9)
- Fmoc-N-methyl-PEG3-CH2CH2COOH (CAS 1807518-77-9)
- Fmoc-β-Ala-Phe-OH (CAS 2171282-19-0)
- Fmoc-5-methoxy-L-tryptophan (CAS 1219184-52-7)
- Fmoc-β-Ala-D-Tic-OH (CAS CATO-CPTD788493)
- Fmoc-3,4-dichloro-L-phenylalanine, 98% (CAS 17766-59-5)
Recommended Standards
- 4-tert-Butyl-N-{4-[(4,6-dimethoxypyrimidin-2-yl)oxy]-2-methylphenyl}benzene-1-sulfonamide (CAS 866154-88-3)
- 3-Benzyl-5-(benzylsulfanyl)-8,9-dimethoxy-2H,3H-imidazo[1,2-c]quinazolin-2-one (CAS 477768-52-8)
- N-(2,5-Dimethoxyphenyl)-2-(1,1-dioxidothiomorpholino)-3-(1H-indol-3-yl)propanamide (CAS 477889-86-4)
- 3-(2-Oxo-2-(4-((2,3,5,6-tetramethylphenyl)sulfonyl)piperazin-1-yl)ethyl)benzo[d]oxazol-2(3H)-one (CAS 854032-15-8)
- 5-Methyl-1-propyl-1h-pyrazole-4-sulfonamide (CAS 1250681-34-5)
- Gliquidone Impurity 1 (CAS 52962-25-1)
- 2-(Pyridin-4-yl)terephthalic acid (CAS 1238617-40-7)
- 4,6-Bis(3,5-di(pyridin-4-yl)phenyl)-2-phenylpyrimidine (CAS 1097652-83-9)
- 1-Ethylidene-2-phenylhydrazine (CAS 935-07-9)
- 3-Fluoroimidazo[1,2-a]pyridine-2-carbohydrazide (CAS 893774-41-9)
- 2,6-Difluoropyridin-3-amine (CAS 108118-69-0)
- tert-Butyl (2-(5-methyl-1H-indazol-3-yl)ethyl)carbamate (CAS 1956370-87-8)
- 5-Fluoro-2-(3,3,3-trifluoropropoxy)pyridine (CAS 1707604-95-2)
- HIV (gp120) Antigenic Peptide (H-2982.0500) (CAS 198636-94-1)
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