Fmoc-N-Methyl-D-Isoleucine CAS 1301706-63-7
| CAS No. | 1301706-63-7 |
| Molecular Formula | C22H25NO4 |
| Molecular Weight | 367.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Fmoc-N-Methyl-D-Isoleucine (CAS 1301706-63-7) is a high-purity analytical reference standard with the molecular formula C22H25NO4 and a molecular weight of 367.44 g/mol.
Based on its molecular formula C22H25NO4, Fmoc-N-Methyl-D-Isoleucine contains a flavonoid 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 367.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C22H25NO4 |
| Molecular Weight | 367.44 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related Fmoc Standards
- (R)-2-[(Fmoc-amino)methyl]-4-methylpentanoic Acid (CAS 1018899-99-4)
- N-Fmoc-iminodiacetic acid (CAS 112918-82-8)
- Fmoc-L-b-methylisoleucine (CAS 1227750-73-3)
- Fmoc-D-b-methylisoleucine (CAS 1310680-40-0)
- Fmoc-N-Methyl-D-Allo-Isoleucine (CAS 1356090-81-7)
- Fmoc-n-methyl-dl-leucine (CAS 1362858-89-6)
- Fmoc-t-butyl-L-alanine (CAS 139551-74-9)
- (R)-2-(Fmoc-amino)heptanoic acid (CAS 1629051-80-4)
Recommended Standards
- 1-(8-(tert-Butoxycarbonyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-3-yl)piperidine-4-carboxylic acid (CAS 1251003-31-2)
- (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-ethylpentanoic acid (CAS 1310680-36-4)
- N1-(1-Phenylethyl)-N2-((1-(pyrimidin-2-yl)piperidin-4-yl)methyl)oxalamide (CAS 1235139-26-0)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-ethylpentanoic acid (CAS 1310680-47-7)
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