(R)-3-(Fmoc-amino)-2-methylpropanoic Acid CAS 211682-15-4
| CAS No. | 211682-15-4 |
| Molecular Formula | C19H19NO4 |
| Molecular Weight | 325.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (R)-3-(Fmoc-amino)-2-methylpropanoic Acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
(R)-3-(Fmoc-amino)-2-methylpropanoic Acid (CAS 211682-15-4) is a high-purity analytical reference standard with the molecular formula C19H19NO4 and a molecular weight of 325.36 g/mol.
Based on its molecular formula C19H19NO4, (R)-3-(Fmoc-amino)-2-methylpropanoic Acid 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 325.36 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.
Physical & Chemical Properties
| Molecular Formula | C19H19NO4 |
| Molecular Weight | 325.36 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.) | 2017 |
| Nitrogen Atoms | 1 |
Related R Standards
Recommended Standards
- (R)-3-((Tert-butoxycarbonyl)amino)-3-(3,5-dimethoxyphenyl)propanoic acid (CAS 500788-94-3)
- (S)-(+)-4-Benzyl-3-benzyloxyacetyl-2-oxazolidinone (CAS 236110-81-9)
- (R)-3-((tert-Butoxycarbonyl)amino)-3-(3,4-dimethoxyphenyl)propanoic acid (CAS 500788-93-2)
- (S)-3-((tert-butoxycarbonyl)amino)-3-(2,3-dimethoxyphenyl)propanoic acid (CAS 499995-83-4)
- 2-(Carboxymethyl)cyclohex-1-ene-1-carboxylic acid (CAS 63177-18-4)
- 4-(2-Methoxyphenoxy)-3-(trifluoromethyl)aniline (CAS 946775-72-0)
- 2-(4-Methoxy-2-(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1218790-37-4)
- Ethyl 2-(3,5-dimethyl-4-nitro-1H-pyrazol-1-yl)acetate (CAS 5679-18-5)
- n-(Sec-butyl)-2-fluoroaniline (CAS 1019581-93-1)
- 2-Chloro-6-(methylthio)pyridine (CAS 77145-64-3)
- 4-(3,5-Dimethoxyphenyl)butanal (CAS 591247-24-4)
- Ethyl 5-bromo-3-hydroxybenzo[b]thiophene-2-carboxylate (CAS 132389-20-9)
- 2-((2,4-Difluorobenzyl)oxy)-4-fluorobenzaldehyde (CAS 1443351-71-0)
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
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