Fmoc-isoleucinol CAS 133565-46-5
| CAS No. | 133565-46-5 |
| Molecular Formula | C21H25NO3 |
| Molecular Weight | 339.43 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-isoleucinol.
Fmoc-isoleucinol (CAS 133565-46-5) is a high-purity analytical reference standard with the molecular formula C21H25NO3 and a molecular weight of 339.43 g/mol.
Based on its molecular formula C21H25NO3, Fmoc-isoleucinol contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 339.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C21H25NO3 |
| Molecular Weight | 339.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
Related Fmoc Standards
- Fmoc-L-leucinol (CAS 139551-83-0)
- Fmoc-D-leucinol (CAS 215178-41-9)
- 5-(Fmoc-amino)valeric acid (CAS 123622-48-0)
- Fmoc-N-methyl-l-2-aminobutyric acid (CAS 1310575-53-1)
- 4-[Fmoc-(methyl)amino]butanoic Acid (CAS 221124-57-8)
- Fmoc-L-isovaline (CAS 857478-30-9)
- N-Fmoc-N-ethyl-L-alanine (CAS 84000-09-9)
- Fmoc-Val-OH (CAS 68858-20-8)
Recommended Standards
- Ethyl 2,7,7-trimethyl-5-oxo-4-phenyl-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate (CAS 13337-64-9)
- N-((4-Hydroxytetrahydro-2H-pyran-4-yl)methyl)-3,3-diphenylpropanamide (CAS 1351605-33-8)
- 3-((N,2,4,6-tetramethylphenyl)sulfonamido)thiophene-2-carboxylic acid (CAS 1325306-81-7)
- Benzyl 2-(2-methyl-6-(methylamino)pyridin-3-yl)piperidine-1-carboxylate (CAS 1352493-07-2)
- 2-[(Adamantan-1-yl)methoxy]-3-chloro-5-(trifluoromethyl)pyridine (CAS 339098-66-7)
- IAdCuCl (CAS 875654-50-5)
- 4-Methoxy-6-methyl-5,6-dihydro-2H-pyran-2-one (CAS 3791-79-5)
- 6-Bromo-4-fluoronicotinonitrile (CAS 1807022-76-9)
- O-(3-bromophenyl)hydroxylamine hydrochloride (CAS 1387003-36-2)
- 4,4'-Dibromo-2,2'-bithiophene (CAS 51285-60-0)
- N-benzyl-2-bromoethan-1-amine hydrobromide (CAS 33538-02-2)
- Sodium 4-(2-bromoethyl)benzenesulfonate (CAS 65036-65-9)
- 3-(Chloromethyl)-5-isopropylisoxazole (CAS 1018128-18-1)
- [Glu]17-Semaglutide (CAS CATO-CPTD788604)
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