4-(Fmoc-amino)-1-methyl-1H-imidazole-2-carboxylic acid CAS 252206-28-3
| CAS No. | 252206-28-3 |
| Molecular Formula | C20H17N3O4 |
| Molecular Weight | 363.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-(Fmoc-amino)-1-methyl-1H-imidazole-2-carboxylic acid (C20H17N3O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 363.37 g/mol, it falls into the moderately-high-molecular-weight range. 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).
CATO supplies 4-(Fmoc-amino)-1-methyl-1H-imidazole-2-carboxylic acid (CAS 252206-28-3), a certified reference material (molecular formula C20H17N3O4, MW 363.37 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 | C20H17N3O4 |
| Molecular Weight | 363.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
Related Fmoc Standards
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- Fmoc-(1S,2R)-(+)-2-aminocyclohex-4-ene-carboxylicacid (CAS 1084909-67-0)
- Fmoc-D-Bishomopropargylglycine (CAS 1198791-55-7)
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Recommended Standards
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- tert-Butyl (3-bromo-5-nitropyridin-2-yl)carbamate (CAS 1186367-91-8)
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- Tebipenem Impurity 18 (CAS CATO-C4X-134718)
- Ethyl 5-bromo-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridine-3-carboxylate (CAS 1956385-71-9)
- N-1-Ethoxyethyl Losartan Carboxylic Acid (CAS 165276-41-5)
- Sodium 8-(phenylamino)naphthalene-1-sulfonate (CAS 1445-19-8)
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